U-Line 2175-2275DWRR, 2175RF, 2275DWRWS, CLRCO2175, 2115WCOL, CO2175-CO2275DWR, 2175WCOL, 2175BEV, 2115WC, CLR2160, 2175WC, 2275DWRWOL, 2115R, 2175R, CO2175F, U-1175BEVS-00 User Manual

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Service Manual

2010

2115R

2115WC

2115WCOL

2175/2275DWRR

2175R

2175RF

2175WC

2175WCOL

CLR2160

CLRCO2175

CO2175/CO2275DWR

CO2175F

2175BEV

2275DWRWS

2275DWRWOL

2275ZWC

2275ZWCOL

1115R

1115WC

1175BEV

1175R

1175WC

ADA24R

Entertain with U-Line Elegance

www.u-line.com

Section 1 - General Information

INTRODUCTION

Three generations of pride and quality manufacturing and design improvements are built into all U-Line products. The result: U-Line leads the market with innovative technology and superior craftsmanship.

This manual contains specific instructions for servicing the U-Line Products which include these models:

ÉCHELON MODELS

2115R

2115WC

2115WCOL

2275DWRR

2175R

2175RF

2175WC

2175WCOL

CLR2160

CLRCO2175

CO2275DWR

CO2175F

2175BEV

2275DWRWS

2275DWRWS

2275ZWC

2275ZWCOL

ORIGINS MODELS

1115R

1115WC

1175BEV

1175R

1175WC

ADA24R

POTENTIAL PROBLEMS WITH HFC-134A

This service manual has been written to cover products manufactured with HFC-134A. HFC-134A compressors receive a synthetic based ester oil charge. The hygroscopic (water attraction) property of ester oil is many times greater than the mineral oils previously used with CFC-12. High system moisture causes the formation of acids and alcohol which can damage the compressor. Systems should not be left open for more than fifteen (15) minutes at any time as humidity from the air will enter the system. To ensure system dehydration, the system should be pulled down to 100 microns and vacuum pump oil (mineral oil) must not be allowed to enter the system.

Cleanliness of the system is extremely important. The presence of residues (chlorinated or greasy residues, mineral oil, or impurities) can lead to capillary tube restrictions, oil return problems and compressor damage. Do not use flux on brazed joints.

IMPORTANT

Check for the latest service related information at U- LineService.com. The Technical Knowledge base is continuously updated and can be accessed anytime. Each U-Line product has a unique method of installation, but it is consistent with U-Line’s methods and requirement. Follow the installation guidelines for the U-Line product you are installing.

1-1

Section 1 - General Information

TABLE OF CONTENTS

SECTION 1 - GENERAL INFORMATION

 

Introduction ..................................................................................................................................................................

1-1

Potential Problems With HFC-134A.......................................................................................................................

1-1

Safety Precautions .......................................................................................................................................................

1-4

Safety Alert Definitions ....................................................................................................................................

1-4

General Precautions .........................................................................................................................................

1-4

U-Line Corporation Limited Warranty...................................................................................................................

1-5

Product Liability Policy................................................................................................................................................

1-6

Serial Number Format ................................................................................................................................................

1-7

Warranty Claims Procedure......................................................................................................................................

1-7

Proof of Purchase.........................................................................................................................................................

1-7

Parts Listing....................................................................................................................................................................

1-8

SECTION 2 - TROUBLESHOOTING

 

Customer Call Guide ..................................................................................................................................................

2-1

Refrigeration System Diagnosis Guide ....................................................................................................................

2-3

Thermistor Types.........................................................................................................................................................

2-3

Troubleshooting ...........................................................................................................................................................

2-4

SECTION 3 - SERVICE AND REPAIR

 

Operation ......................................................................................................................................................................

3-1

CLR2160 .............................................................................................................................................................

3-1

CLRCO2175 ......................................................................................................................................................

3-4

2175R/2115R/2175WC/2115WC/2175BEV/2175DWRR/2275DWRWS/2275ZWC

 

(Includes Overlay Models) ............................................................................................................................

3-14

CO2175F/2175RF/CO2175DWR ...............................................................................................................

3-17

1175R/1115R/1175WC/1115WC/1175BEV/ADA24R ...........................................................................

3-27

Operating Environmental/Climate Control Requirements .............................................................................

3-29

For All - Except WC, DWRWS, BEV Center, CODWR & 2275ZWC/2275ZWCOL .................

3-29

For WC, DWRWS, CODWR, BEV, CLRCO & 2275ZWC/2275ZWCOL .....................................

3-29

Échelon Keypad Options ...............................................................................................................................

3-29

Échelon Service Menu ....................................................................................................................................

3-32

Error Codes .....................................................................................................................................................

3-34

Échelon Service Quick Reference Card .....................................................................................................

3-36

Échelon Electronic Control Quick Reference Guide .............................................................................

3-37

Origins Electronic Control ............................................................................................................................

3-38

Origins Keypad Options .................................................................................................................................

3-38

Origins Service Menu .....................................................................................................................................

3-39

Error Codes .....................................................................................................................................................

3-39

Origins Electronic Control Quick Reference Guide ..............................................................................

3-40

Refrigeration System Diagnosis Guide .......................................................................................................

3-41

Defrost Information - All models ..........................................................................................................................

3-41

Specifications ..............................................................................................................................................................

3-42

CLR2160 ...........................................................................................................................................................

3-42

CLRCO2175 ....................................................................................................................................................

3-43

2175R/2115R/2175WC/2115WC/2175BEV2175WRR/2175DWRWS/2275ZWC ........................

3-44

CO2175F/2175RF/CO2175DWR ...............................................................................................................

3-45

1175R/1115R/1175WC/1115WC/1175BEV/ADA24R ...........................................................................

3-46

Adjustments and Repair............................................................................................................................................

3-47

Leveling ..............................................................................................................................................................

3-47

Door Alignment - Échelon Models .............................................................................................................

3-47

Door Alignment - Origins Models ..............................................................................................................

3-49

Drawer Alignment ..........................................................................................................................................

3-49

Ice Cube Thickness Adjustment ..................................................................................................................

3-53

Parts Replacement ..........................................................................................................................................

3-54

Plumbing - CLR2160 and CLRCO2175 ...............................................................................................................

3-57

SECTION 4 - PARTS

4-1

Parts Listing ..................................................................................................................................................................

Anti-Tip Kit ...................................................................................................................................................................

4-1

CLR2160 .......................................................................................................................................................................

4-2

CLRCO2175..................................................................................................................................................................

4-6

1-2

 

 

 

Section 1 - General Information

 

 

 

 

 

 

 

2175R ............................................................................................................................................................................

4-14

2115R ............................................................................................................................................................................

4-18

2175WC/2175WCOL ..............................................................................................................................................

4-22

2115WC/WCOL........................................................................................................................................................

4-26

2175BEV .......................................................................................................................................................................

4-30

2275DWRR .................................................................................................................................................................

4-34

2275DWRWS/2275DWRWOL.............................................................................................................................

4-38

CO2175F......................................................................................................................................................................

4-42

2175RF..........................................................................................................................................................................

4-50

CO2175DWR.............................................................................................................................................................

4-56

2275ZWC/2275ZWCOL.........................................................................................................................................

4-64

1175R ...........................................................................................................................................................................

4-70

1115R ............................................................................................................................................................................

4-74

1175WC ......................................................................................................................................................................

4-78

1115WC ......................................................................................................................................................................

4-82

1175BEV .......................................................................................................................................................................

4-86

ADA24R .......................................................................................................................................................................

4-90

SECTION 5 - WIRING DIAGRAMS

 

CLR2160 .......................................................................................................................................................................

5-1

CLRCO2175 ................................................................................................................................................................

5-1

2115R, 2115WC, 2175R, 2175WC ........................................................................................................................

5-2

2275DWRWS/2275ZWC ........................................................................................................................................

5-2

2175DWRR ..................................................................................................................................................................

5-3

2175RF ...........................................................................................................................................................................

5-3

CO2175F ......................................................................................................................................................................

5-4

CO2175DWR ..............................................................................................................................................................

5-4

1175R/1115R/1175WC/1115WC/1175BEV/ADA24R .......................................................................................

5-5

1-3

Section 1 - General Information

SAFETY PRECAUTIONS

IMPORTANT

PLEASE READ all instructions completely before attempting to service the unit.

Proper installation procedures must be followed if this unit is being initially installed, or is moved to a new location after being in service. An INSTALLATION GUIDE for your unit, providing complete installation information is available from U-Line Corporation directly, and must be consulted before any installation is begun. U- Line contact information appears on the rear cover of this guide.

This unit requires connection to a grounded (threeprong), polarized receptacle that has been placed by a qualified electrician in accordance with applicable electrical codes.

Safety Alert Definitions

Safety items throughout this guide are labeled with a Danger, Warning or Caution based on the risk type:

DANGER

Danger means that failure to follow this safety statement will result in severe personal injury or death.

WARNING

Warning means that failure to follow this safety statement could result in serious personal injury or death.

CAUTION

Caution means that failure to follow this safety statement may result in minor or moderate personal injury, property or equipment damage.

General Precautions

Use this appliance for its intended purpose only and follow these general precautions along with those listed throughout this guide:

DANGER

RISK OF CHILD ENTRAPMENT. Before you throw away your old refrigerator or freezer, take off the doors and leave shelves in place so that children may not easily climb inside.

WARNING

SHOCK HAZARD - Electrical Grounding Required.

Never attempt to repair or perform maintenance on the unit until the electricity has been disconnected.

Never remove the round grounding prong from the plug and never use a two-prong grounding adapter.

Altering, cutting of power cord, removal of power cord, removal of power plug, or direct wiring can cause serious injury, fire and/or loss of property and/or life and will void the warranty.

Never use an extension cord to connect power to the unit.

Always keep your working area dry.

WARNING

Failure to use the Anti-Tip Kit when it is included with the product can cause serious personal injury. The Anti-Tip Kit must be installed before the unit is used.

CAUTION

Use care when moving and handling the unit. Use gloves to prevent personal injury from sharp edges.

If your model requires defrosting, DO NOT use any type of heater to defrost. Using a heater to speed up defrosting can cause personal injury and damage to the inner lining.

IMPORTANT

Do not lift unit by door handle.

Never install or operate the unit behind closed doors. Be sure front grille is free of obstruction. Obstructing free air flow can cause the unit to malfunction and may void the warranty.

Failure to clean the condenser every three months can cause the unit to malfunction. This could void the warranty.

Allow unit temperature to stabilize for 24 hours before use.

If your model requires defrosting, never use an ice pick or other sharp instrument to help speed up defrosting. These instruments can puncture the inner lining or damage cooling unit.

Use only genuine U-Line replacement parts. Imitation parts can damage the unit, affect its operation or performance and may void the warranty.

1-4

Section 1 - General Information

U-LINE CORPORATION LIMITED WARRANTY

U-Line Corporation warrants each U-Line product to be free from defects in materials and workmanship for a period of one year from the date of purchase; and warrants the sealed system (consisting of the compressor, the condenser, the evaporator, the hot gas bypass valve, the dryer and the connecting tubing) in each U-Line product to be free from defects in materials and workmanship for a period of five years from the date of purchase. During the initial one-year warranty period for all U-Line products U-Line shall: (1) at U-Lines option, repair any product or replace any part of a product that breaches this warranty; and (2) for all Marine, RV and Domestic U-Line products sold and serviced in the United States (including Alaska and Hawaii) and Canada, U-Line shall cover the labor costs incurred in connection with the replacement of any defective part. During years two through five of the warranty period for the sealed system, U-Line shall: (1) repair or replace any part of the sealed system that breaches this warranty; and (2) for all Marine, RV and Domestic U-Line products sold and serviced in the United States (including Alaska and Hawaii) and Canada, U-Line shall cover the labor costs incurred in connection with the replacement of any defective part of the sealed system. All other charges, including transportation charges for replacements under this warranty and labor costs not specifically covered by this warranty, shall be borne by you. This warranty is extended only to the original purchaser of the U-Line product. The Registration Card included with the product should be promptly completed by you and mailed back to U-Line or you can register on-line at www.U- LineService.com.

The following are excluded from this limited warranty: installation charges; damages caused by disasters or acts of God, such as fire, floods, wind and lightening; damages incurred or resulting from shipping, improper installation, unauthorized modification, or misuse/abuse of the product; customer education calls; food loss/spoilage; door and water level adjustments (except during the first 90 days from the date of purchase); defrosting the product; adjusting the controls; door reversal; or cleaning the condenser.

If a product defect is discovered during the applicable warranty period, you must promptly notify either the dealer from whom you purchased the product or U-Line at P.O. Box 245040, Milwaukee, Wisconsin 53224 or at 414-354-0300. In no event shall such notification be received later than 30 days after the expiration of the applicable warranty period. U-Line may require that defective parts be returned, at your expense, to U- Lines factory in Milwaukee, Wisconsin, for inspection. Any action by you for breach of warranty must be commenced within one year after the expiration of the applicable warranty period.

This limited warranty is in lieu of any other warranty, express or implied, including, but not limited to any implied warranty of merchantability or fitness for a particular purpose; provided however, that to the extent required by law, implied warranties are included but do not extend beyond the duration of the express warranty first set forth above. U-Lines sole liability and your exclusive remedy under this warranty is set forth in the initial paragraph above. U-Line shall have no liability whatsoever for any incidental, consequential or special damages arising from the sale, use or installation of the product or from any other cause whatsoever, whether based on warranty (express or implied) or otherwise based on contract, tort or any other theory of liability.

Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages, so the above limitations may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

1-5

Section 1 - General Information

PRODUCT LIABILITY POLICY

Field service technicians are authorized to make an initial assessment. If in the servicer’s judgment

the damage is the result of a product defect, the product would be removed and returned to U-Line in an unaltered condition. The dealer would then be authorized to permanently replace the end-user’s product at no cost to the end-user. Please call U-Line immediately at 800-779-2547 to initiate the RA and product exchange process.

If in the servicer’s judgment the damage is the result of installation issues (water

connection/drain, etc.), the consumer would be so notified and the correction would be made by the servicer or installer without requiring removal of the product. Any claim for damages should be directed to the original installer.

Any U-Line unit involved in an alleged property damage claim must remain unaltered and unrepaired, for evaluation. No service or repairs should be performed on any unit suspected to be involved in a property damage situation. If a unit has been altered or repaired in the field prior to U- Line’s evaluation, any claim for damage may be declined.

If the unit in question is a U-Line CLR or CLRCO with a drain pump, both the unit and the drain pump (regardless of the manufacturer) must be returned to U-Line Corporation.

To complete the damage claim process for the customer, please obtain the following and forward to U-Line at onlineservice@U-Line.com, fax to 414-354-5696 or mail to the address below.

Pictures of the unit, installation and any alleged property damage.

Inquire when the problem first appeared, any prior problems with the product and provide a brief description of the alleged damages.

To expedite the claim process, U-Line will need two damage repair estimates.

Reference the RA number and customer name when providing this information.

If a unit is returned to U-Line, this evaluation will take approximately ten business days. No field service company is authorized to perform this evaluation. When a Return Authorization Number is issued, and the unit has been boxed in a U-Line carton, U-Line should be contacted and then will make arrangements for shipping, or designate a truck line to have the unit shipped freight collect.

If U-Line’s evaluation finds the unit, (or U-Line P60 pump) to be defective, causing the property damage, the damage claim will be reviewed by the U-Line Customer Assurance Department.

If U-Line’s evaluation finds the unit not to be defective, does not repeat a failure or does not leak any water from the U-Line unit or U-Line P60 pump, all claims for damage will be declined.

When a product evaluation is needed, it is the customer’s responsibility to assure that the unit is returned for evaluation. If the customer fails to do so, or has the unit repaired in the field prior to U-Line’s evaluation, any claim for damage will be declined.

8900 N. 55th St. • P.O. Box 245040

Milwaukee, WI 53224-9540

414/354-0300 • Fax: 414/354-7905

Website: www.u-line.com

Leaders In Quality Undercounter Refrigeration

1-6

Section 1 - General Information

SERIAL NUMBER FORMAT

IMPORTANT

Starting October 2009 U-Line Corporation went to a 13 digit serial number. Anything before that date will have 12 digits.

The serial number is divided into four segments. A typical serial number is 0914997-11-0005.

0914997-11-XXXX

Year Shop Month

Factory Internal

Order

Control Number

Number

 

The first two digits of the first segment, 09, represents the year the unit was made.

The next four/five digits of the first segment, 14997, represent the shop order number. Order number 14997 is assigned for the Model CLRCO2175B-40 units.

The next two digit segment, 12, represents the month the unit was made.

The last four digit segment, XXXX, is a factory internal control number used at U-Line Corporation.

WARRANTY CLAIMS PROCEDURE

WHEN SUBMITTING CLAIMS FOR WARRANTY

PAYMENT, PLEASE FOLLOW THESE

GUIDELINES.

You can use any form you would normally use to bill your customer (your own computer generated form, Narda, USA, etc.). Claims can also be filed on-line at

www.u-lineservice.com.

The model and serial number MUST be on the claims. Claims will not be paid without a model and serial number.

If you used a part in your repair, you MUST put the part number, the invoice number and where the part came from. Claims will be returned without this information.

If you work on more than one unit per service call please submit a separate claim for each unit.

We track all defects through warranty claims, so please be specific on what the repair was. If it is a system leak, please specify where the leak was.

Please be sure the claim is legible. If the claim form cannot be read, it will be returned, unpaid.

Remember: Door and water level adjustments are 90 day warranties only.

If you are changing out a unit please supply the model and serial number of both units (the unit being replaced and the new unit) and the R.A. number.

Occasionally the customer does not return their warranty cards. In this case we use the date the unit was shipped to our distributor for a beginning warranty date. This may cause the claim to be rejected for a proof of purchase. If you want to check on a purchase date, you may contact the U-Line Corporation Customer Assurance Department at 1-800-779-2547. This will allow you to get a proof of purchase, if needed, before you submit the claim.

At U-Line, parts and labor claims are paid separately. Included in labor are freon and recovery charges, all other parts are handled by the parts department. We require that some parts be returned to us, so we may return them to our vendor. It will be noted on your packing list if we require you to return the part. If a part is to be returned please include a copy of the packing list and a copy of your claim. If the part was purchased at one of our part distributors, you must handle the part warranty with that company. For labor payment please send a readable copy of your claim to U-Line Corporation, P.O. Box 245040, Milwaukee WI, 53224-9540, or fax it to 414-354- 5696. Claims can also be filed on-line at www.u-lineservice.com.

PROOF OF PURCHASE

Proof of Purchase and/or Proof of Install is an important part of the warranty claim process. Sometimes it is difficult to obtain a proper Proof of Purchase/Proof of Install for a number of different reasons:

The customer does not have a copy (only the original).

The customer has only their copy of the final Walk Through or sign-off of new construction.

Other valid reasons that prevent your technician from leaving the job site with a suitable Proof of Purchase/ Proof of Install.

We understand the problem and have modified our Proof of Purchase policy to help you in these situations.
Effective immediately, if a copy of the Proof of Purchase/Proof of Install is not available at the site, the technician should record the following information on the Labor Invoice:

The name of the selling Dealer

The date of purchase/installation

The Order or Invoice number (if available)

The type of document they saw, i.e. Store Receipt, Closing Papers, Sign-Off of Building Permit, Final Walk Through, etc.

If we have this information on the Labor Invoice, and we have the other information that is needed (correct Serial Number, type of repair, time spent on repairs, parts used in the repair, invoice number for the part, etc.), we will be able to process the invoice for you in a timely manner.

1-7

Section 1 - General Information

PARTS LISTING

How to Order Replacement Parts

1.Refer to Service Parts and locate the illustration(s) for the model you are servicing.
2.Locate the desired part to be serviced and note the item number assigned to it.
3.Locate the item number within the parts list. Note the full description and the corresponding part number. If this is for a warranty unit, indicate and record the model and serial numbers.
4.When ordering parts, it will be necessary to supply Model Number, Serial Number, Part Number, Part Description and in some cases Color or Voltage.

All warranty parts will be shipped at no charge as long as warranty status has been confirmed. If we require that a part be returned to U- line, you will be informaed at the time the order is placed. It will be noted on your packing list if we require you to return a part or if you may field scrap it. If U-Line requires a defective part to be returned, a prepaid shipping label will be included with your new replacement part. When returning parts enclose a copy of your packing list and a copy of your labor claim, showing the model and serial number, and tag or label the part with the nature of the defect.

Our warranty records may not match the customer's information. In this case, a proof of purchase will be required. If you do not have the proof of purchase at the time the order is placed, the part will be sent net 15 days, charged to a Visa or MasterCard or COD if you don't have an open account with U-Line Corporation. When the proof of purchase is provided, we will credit your account (a check will be sent if the part was sent COD).

5. Parts may be ordered on-line, by FAX or phone:
www.U-LineService.com
onlineparts@u-line.com
FAX Number (414) 354-7905
Phone Number (414) 354-0300 or (800) 779-2547;

REPLACEMENT PARTS: Use only genuine U-Line replacement

parts. The use of non-U-Line parts can reduce ice rate, cause water

to overflow from ice maker mold, damage the unit, and can void the

warranty.

1-8

Section 2 - Troubleshooting

CUSTOMER CALL GUIDE

The following guide has been developed to help answer frequently asked questions. It can be used by persons

scheduling service calls. Things to consider before scheduling a service call:

Concern

Response

 

 

The unit is not cold enough.

• Are you familiar with the factory temperature specifications for

 

your unit? Many factors can cause these temperatures to vary;

 

ambient temperature, application, amount of use (number of times

 

and length of time the door or drawers or opened and closed),

 

etc.

 

• Is the door or drawers sealing properly? If the door or drawer is

 

not sealed properly, it allows heat into the unit. U-Line’s warranty

 

is 90 days for door or drawer adjustments.

 

• Has the door or drawers been left open?

 

• Is the condenser clean? U-Line’s warranty does not cover cleaning

 

the condenser.

 

• Is the unit behind closed doors or the vent restricted? The front

 

grille must be free of obstruction.

 

• Is the unit in an application of heavy usage? Heavy usage or high

 

ambient temperatures will cause a unit to frost up.

 

• Did you try adjusting the temperature to a colder level? Adjust to

 

a colder level. Be sure to allow 24 hours between temperature

 

control adjustments.

 

 

Temperature is too cold.

Check actual temperature versus set-point.

 

 

The unit is frosting up.

• Are you familiar with the defrost technology of your unit?

 

• Is the door or drawers sealing properly? If the door or drawer

 

is not sealing properly, it allows heat/humidity into the unit.

 

U-Line’s warranty is 90 days for door or drawer adjustments.

 

• Has the door or drawers been left open?

 

• Is the unit in an application of heavy usage? Heavy usage or high

 

ambient temperatures will cause a unit to frost up.

 

 

The ice cubes are sticking together.

• Is the door or drawers sealing properly? This could cause the ice

 

cubes to stick together.

 

• Have you tried to shake the ice bucket? If the ice sits without

 

being used, it will tend to stick together. Shaking the bucket will

 

usually break the ice cubes apart. If the ice has been sitting for a

 

long time, you should consider discarding it and make a fresh

 

batch.

 

• Does the unit need to be defrosted?

 

 

Water is leaking out of the unit.

Have you checked the water connection to the unit? U-Line’s

 

warranty does not cover installation adjustments.

 

 

No ice or not enough ice.

• Are you aware of the factory specifications for ice production?

 

• Is the ice maker bin arm down? When the arm is up, the ice

 

maker will not make ice.

 

• Is the door or drawers sealing properly? U-Line’s warranty is 90

 

days for door adjustments.

 

• Has the ice maker been turned off at the display?

 

 

2-1

Section 2 - Troubleshooting

CLR2160 Model Only:

Concern

Response

 

 

The cubes are wet.

• The storage bin that holds the ice is not refrigerated. The

 

cubes in the bin are slowly melting down. The bin will

 

maintain a temperature of 32°F to 34°F.

 

 

The floor is very warm in front of my unit.

• The unit is designed for a built-in application, so warm air

 

will vent through the front grille, below the door. There

 

is a safety feature built into the control board that will

 

shut down the unit if warm air can’t vent or is restricted.

 

 

No ice, but water pours into the trough and

• The standpipe needs to be inserted into the drain hole of

down into the drain.

the water trough to maintain the proper level of water

 

inside the trough.

 

 

When the unit is turned on, all I get is water

• Once the unit is turned on, there will be a three-minute

fill.

water fill. This ensures a fresh batch of water has filled

 

the trough. If water flows more than three minutes, a

 

service call will be required.

 

 

The ice does not come out in a perfect cube

• When the ice is made, a small hole or “dimple” will

shape.

appear on the front or top of the cube. Increasing or

 

decreasing the time of the freeze cycle will adjust the size

 

of the dimple.

 

 

The cubes do not fall into the bin as

• This is normal. You can use the scoop to break the cubes

individual cubes.

apart.

 

 

Not enough ice is stored in the bin.

• Make sure unit is level.

 

 

Drawer Models Only:

Concern

Response

 

 

There is excessive condensation on the mullion.

• The mullion has a heater behind it that should keep the mullion free of

 

frost and sweat. In extremely humid conditions, some sweat may appear

 

on the mullion or lower drawer handle/gasket. The heater will not

 

operate in ambient temperatures over 90°F.

 

• Drawer units should not be used outdoors or in an area that is not air-

 

conditioned.

 

 

Drawer will not close properly.

• The drawer slides have a self-closing feature which engages when the

 

drawer is about 1” (25.4mm) from being closed. There may be some

 

resistance. If the resistance is hard to overcome, try closing the drawers

 

with more force a couple of times and then try slowly closing the drawers

 

again.

 

 

2175DWRR Model Only:

Concern

Response

 

 

There is a water leak inside the unit.

• Make sure the drain is not blocked. Remove any blockage.

 

 

2-2

Section 2 - Troubleshooting

REFRIGERATION SYSTEM DIAGNOSIS GUIDE

System

Suction

Suction

Compressor

Condenser

Capillary

Evaporator

Wattage

Condition

Pressure

Line

Discharge

 

Tube

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Normal

Normal

Slightly below

Very hot

Very hot

Warm

Cold

Normal

 

 

room

 

 

 

 

 

 

 

temperature

 

 

 

 

 

 

 

 

 

 

 

 

 

Overcharge

Higher than

Very cold may

Slightly warm

Hot to warm

Cool

Cold

Higher than

 

normal

frost heavily

to hot

 

 

 

normal

 

 

 

 

 

 

 

 

Undercharge

Lower than

Warm-near

Hot

Warm

Warm

Extremely

Lower than

 

normal

room

 

 

 

cold near

normal

 

 

temperature

 

 

 

inlet - Outlet

 

 

 

 

 

 

 

below room

 

 

 

 

 

 

 

temperature

 

 

 

 

 

 

 

 

 

Partial

Somewhat

Warm - near

Very hot

Top passes

Room

Extremely

Lower than

Restriction

lower than

room

 

warm - Lower

temperature

cold near

normal

 

normal

temperature

 

passes cool

(cool) or

inlet - Outlet

 

 

vacuum

 

 

(near room

colder

below room

 

 

 

 

 

temperature)

 

temperature

 

 

 

 

 

due to liquid

 

backing up

 

 

 

 

 

 

 

 

 

Complete

In deep

Room

Room

Room

Room

No

Lower than

Restriction

vacuum

temperature

temperature

temperature

temperature

refrigeration

normal

 

 

(cool)

(cool)

(cool)

(cool)

 

 

 

 

 

 

 

 

 

 

No Gas

0 PSIG to 25”

Room

Cool to hot

Room

Room

No

Lower than

 

 

temperature

 

temperature

temperature

refrigeration

normal

 

 

(cool)

 

(cool)

(cool)

 

 

 

 

 

 

 

 

 

 

THERMISTOR TYPES

Type 1 (Black)

Resistance at 77°F = 10,000 Ohms ± 5%.

Operating range is 185,000 to 650 Ohms. Resistance goes down as temperature increases. Type 1 does not need to be calibrated and can be changed without changing other wires or board.

Type 2 (White)

Resistance at 77°F = 5,000 Ohms ± 5%.

Operating range is 180,000 to 550 Ohms. Resistance goes down as temperature increases. Type 2 does not need to be calibrated and can be changed without changing other wires or board.

2-3

Section 2 - Troubleshooting

TROUBLESHOOTING

DANGER

Never attempt to repair or perform maintenance on the unit until the main electrical power has been disconnected from the unit.

 

Cause

 

Remedy

 

 

 

Will not eject ice (water frozen).

 

 

1.

Control setting too cold.

1.

Adjust control warmer.

2.

Control inoperable.

2.

Replace control.

3.

Bin switch inoperable.

3.

Replace bin switch.

4.

Limit switch defective (open).

4.

Replace limit switch.

5.

Ice maker assembly motor stalled.

5.

Replace motor.

6.

Broken wire in ice maker circuit.

6.

Repair or replace wiring.

7.

Water soaked cabinet insulation.

7.

Replace foamed cabinet assembly.

8.

Dirty condenser.

8.

Clean condenser.

 

 

 

Will not fill with water.

 

 

1.

Water supply valve closed.

1.

Open water supply valve.

2.

Water switch inoperable (open).

2.

Replace water switch.

3.

Solenoid valve inoperable.

3.

Replace solenoid valve.

4.

Fill tube outlet frozen.

4.

Defrost fill tube.

5.

Broken wire in water fill circuit.

5.

Repair or replace wiring.

 

 

 

Will not stop making ice.

 

 

1.

Bin switch inoperable (closed).

1.

Replace bin switch.

2.

Bin arm binding.

2.

Lubricate bin arm pivot points or loosen bin arm lever screw.

 

 

 

Water will not stop filling.

 

 

1.

Water switch inoperable (closed).

1.

Replace water switch.

2.

Solenoid valve inoperable.

2.

Replace solenoid valve.

3.

Stalled ice maker motor.

3.

Replace motor.

4.

Temperature control inoperable. Ice maker is in

4.

Replace temperature control.

 

continuous harvest cycle.

 

 

 

 

 

Ejector blades will not stop turning.

 

 

1.

Control inoperable.

1.

Replace control. Replace hold switch.

2.

Hold switch inoperable.

2.

Repair or replace wiring.

3.

Broken wiring.

3.

Replace heater.

4.

Short in mold heater.

4.

Replace mold heater.

 

 

 

 

2-4

 

 

 

 

 

 

Section 2 - Troubleshooting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cause

 

Remedy

 

 

 

 

 

 

 

Low ice production.

 

 

 

 

1.

Control set too cold.

1.

Adjust control warmer.

 

 

2.

Fan motor stalled.

2.

Replace fan motor.

 

 

3.

Ice cubes too large.

3.

Lower water fill adjustment.

 

 

4.

Dirty condenser.

4.

Clean condenser.

 

 

5.

Bypass valve stuck open (Frost Free units only).

5.

Replace bypass valve (Frost Free units only).

 

 

 

 

 

 

 

Not freezing (compressor and fan motors

 

 

 

 

operating).

 

 

 

 

1.

Little or no frost pattern on evaporator.

1.

Check for sealed system leak or restriction.

 

 

2.

Bypass valve stuck open (Frost Free units only).

2.

Replace bypass valve (Frost Free units only).

 

 

 

 

 

 

 

Not freezing (compressor not operating - fans

 

 

 

 

operating).

 

 

 

 

1.

Relay inoperable.

1.

Replace relay.

 

 

2.

Overload inoperable (open).

2.

Replace overload.

 

 

3.

Compressor inoperable.

3.

Replace compressor.

 

 

 

 

 

 

 

Not freezing (compressor and fans not operating).

 

 

 

 

1.

Power cord not plugged in.

 

 

 

 

2.

Unit turned off.

1.

Plug in power cord.

 

 

 

 

 

 

3.

Control panel inoperable.

2.

Press On/Off button to turn unit on.

 

 

 

 

 

 

4.

Hold switch inoperable (open).

3.

Replace control panel.

 

 

 

 

 

 

5.

Control inoperable.

4.

Replace hold switch.

 

 

 

 

 

 

6.

Broken wire in freeze circuit.

5.

Replace control.

 

 

 

 

 

 

7.

Ejector blades not in freeze position (12:00)

6.

Repair or replace wiring.

 

 

 

 

 

 

 

 

 

 

7.

Manually advance ejector blades to the 12:00 position (test ice

 

 

 

 

 

 

 

maker and limit switch).

 

 

 

 

 

 

 

Compressor overheating.

 

 

 

 

1.

Condenser air flow restricted.

1.

Remove restriction (clean condenser and grille).

 

 

2.

Condenser fan blade obstructed.

2.

Remove blade restriction.

 

 

3.

Condenser fan motor stalled.

3.

Replace fan motor.

 

 

4.

Compressor inoperable.

4.

Replace compressor.

 

 

 

 

 

 

 

Compressor will not stop operating.

 

 

 

 

1.

Temperature set too cold.

1.

Adjust temperature warmer.

 

 

2.

Control inoperable.

2.

Replace control.

 

 

3.

Control sensing bulb not sensing mold

3.

Fully insert bulb into ice maker tube. Rout bulb away from

 

 

 

temperature.

 

compressor discharge tube.

 

 

4.

Evaporator fan stalled.

4.

Remove obstruction or replace motor.

 

 

 

 

 

 

 

 

 

2-5

Section 2 - Troubleshooting

 

Cause

 

Remedy

 

 

 

Water leak (under unit).

 

 

1.

Water supply line leaking at solenoid valve inlet.

1.

Tighten or replace fitting.

2.

Water line leaking at solenoid valve outlet.

 

 

3.

Water line leaking at fill tube.

2.

Replace water line and fitting.

 

 

4.

Defrost drain line not in drain pan.

3.

Tighten clamp or replace fill tube assembly.

 

 

5.

Crack in water line.

4.

Position drain line in drain pan.

 

 

 

 

5.

Replace water line.

 

 

 

Water leak (inside unit).

 

 

1.

Ice maker assembly fill cup obstructed.

1.

Remove obstruction.

2.

Fill ice cup and fill tube out of alignment.

2.

Align fill tube and fill cup.

3.

Water level too high.

3.

Adjust water level.

4.

Defrost drain plugged (Frost Free units only).

4.

Ice in drain trough (Frost Free units only) (see below).

 

 

 

Excessive frost buildup.

 

 

1.

Door gasket not sealing properly.

1.

Adjust door hinges or replace door gasket.

2.

Door out of alignment.

2.

Adjust door hinges.

3.

Water soaked cabinet insulation.

3.

Replace foamed cabinet assembly.

4.

Light stays on when door is closed.

4.

Repair or adjust light bracket.

 

 

 

Noisy.

 

 

1.

Copper refrigeration tube touching cabinet.

1.

Carefully adjust tubing.

2.

Fan blade touching shroud.

2.

Adjust fan mounting or shroud.

3.

Fan blade obstruction (wiring, foam insulation,

3.

Remove obstruction.

 

packaging material).

 

 

 

 

 

Ice buildup in drain trough or drainage problem.

 

 

1.

Obstructed drain cup or tube.

1.

Clear obstruction.

2.

Drain trough heater failed (Frost Free units

2.

Replace drain trough heater (Frost Free units only).

 

only).

3.

Reroute drain tube.

 

 

3.

Kinked drain tube.

4.

Align drain trough and drain cup.

 

 

4.

Drain trough spout and drain cup not aligned.

 

 

 

 

 

Unit will not defrost (Frost Free units only).

 

 

1.

Bypass coil inoperable.

1.

Replace bypass valve.

2.

Defrost timer inoperable.

2.

Replace defrost timer.

3.

Bypass valve inoperable.

3.

Replace bypass valve.

 

 

 

Fresh food temperature too cold.

 

 

1.

Temperature control set too cold.

1.

Adjust control to warmer setting (counterclockwise).

2.

Bin/Freezer door not closing.

2.

Adjust or replace door.

3.

Ice bucket not fully inserted.

3.

Check for ice behind bucket and push ice bucket in place.

 

 

 

 

2-6

Section 3 - Service and Repair

OPERATION

CLR2160

GENERAL

Upon initial startup, this unit will enter mode number 5 which is a three-minute water fill regardless of the thermistor temperatures. This only occurs when the initial startup is caused by a power-up of the main board.

Following the three-minute water fill, the unit moves into mode 1 which is the freezing mode. In this mode the water is pumped from the sump trough over the ice maker grid by the circulation pump. This mode typically lasts 10-20 minutes and is regulated by the temperature of the thermistor mounted near the dryer (thermistor 4).

At the conclusion of the freeze cycle the unit will enter mode 2 which is the ice harvest. This harvest can last up to three minutes. During this mode the water trough also refills.

Before the next cycle begins, the custom electronic board determines whether the bin is full. A temperature below 34°F, or a temperature below 35°F for at least one hour will stop the unit from producing ice. The ice-making will always stop at the conclusion of a harvest cycle. It will never stop in the middle of a cycle.

The custom electronic board continuously monitors the optional P60 pump to ensure the drain line is not becoming restricted. In the event of a drain line obstruction, the display interface will show “P1.” If the drain remains restricted the unit will stop ice production until the drain clears. In the event of a partially restricted drain, reduced ice rate will be noticed as the unit continuously turns on and off to eliminate any chances of overfilling the unit with water. If no pump is used the pink jumper needs to be connected to the power cord in its place.

A cleaning mode is available through the user interface by using the key sequence described in the Controls Section. The cleaning mode lasts about 45 minutes, at which point the unit will sit idle for another 15 minutes. During this time the display will show “CL.” At the conclusion of the cycle the unit will automatically turn back on.

THERMISTOR OUTAGE

In the event that a thermistor fails, the unit will stop all functions and display “ER” on the user interface. The exact error can be accessed via the service mode.

SERVICE

The CLR2160 model uses four relays and two thermistors. There is a variety of built-in servicing features to aid in diagnosing the root problem associated with a unit.

To check to see which relays are currently operating, hold the COLDER key and press the ON/OFF key three times. When

entering the sequence, keep the COLDER key pressed until you completely release the ON/OFF key for the third time. The display will cycle through a series of numbers to tell which relays are energized. For example, if the unit was in ice-making mode the display would show 11 20 31 40 51 60 70. The first number is the relay number. In the second number, “1” means on and “0” means off. The relay information can be found in the Control Section.

Each relay can also be turned on and off individually to determine whether or not the board and component are operating. If a board is suspected of not operating correctly you can run through this sequence to ensure each component is turning on and off through the board correctly. Go into service mode and choose option #22. This will cycle every relay on and off showing 10 11 20 21 …. If a component fails to turn on when the relay does, you can verify if there is voltage present by using a voltmeter to check the board output.

To view the actual thermistor readings, hold the WARMER and COLDER keys for about five seconds. The display will cycle through the three thermistors and their temperatures. If a thermistor is unused in a unit it will show a “0” reading. The CLR2160 uses thermistors 2 and 4. For thermistor 4 the display will only show up to “99.” In the event the temperature is higher than this the display will show a flashing “99.”

TROUBLESHOOTING

Error Codes

E1, E2, E9

Bad thermistor errors. Replace thermistor. Check

 

for thermistor errors by accessing “View thermistor

 

# status (2,19, 20, or 21).” If the error code is

 

repeated, the thermistor is open or shorted. If a

 

temperature is displayed, the thermistor is not

 

defective.

P1

Pump circuit is detecting a drain problem. Consult a

 

plumber to resolve the issue. If unit does not have a

 

P60 installed, then the jumper wire is missing in

 

place of the pump.

Any other error messages will not affect the operation of the CLR2160 model.

After checking the errors be sure to clear the error log by performing service option 12

3-1

Section 3 - Service and Repair

.

 

L

 

 

 

 

 

L

ICEMAKER EVAPORATOR

C

 

H

2276

 

 

HIGH PRESSURE

 

 

 

L

 

 

 

LOWPRESSURE

R4: WATER

 

 

C

 

L

TRANSITIONAL PRESSURE

SUPPLY

 

IN CAPILLARY TUBE

 

 

 

 

C

 

R5: WATER

 

C

CIRCULATION PUMP

 

 

 

L

 

R4: HOT GAS

 

 

BYPASS

 

 

VALVE

 

 

 

 

L

H

H

C

R1: CONDENSER

 

R3: COMPRESSOR

FAN

 

 

 

C

 

C

CONDENSER

 

 

RELAY

R1

R3

R4

R5

FUNCTION

FAN

COMP

HOT GAS /

CIRC PUMP

WATER IN

 

 

 

 

 

 

 

 

 

Mode 1:

ON

ON

OFF

ON

Ice Making

 

 

 

 

Mode 2:

ON

ON

ON

OFF

Ice Harvest

 

 

 

 

Mode 3:

OFF

OFF

OFF

OFF

Off

 

 

 

 

Mode 4:

OFF

OFF

ON/OFF

ON/OFF

Cleaning

 

 

 

 

Mode 5:

 

 

 

 

Water Fill &

OFF

OFF

ON*

OFF

Initial Start-Up

 

 

 

 

* Normal Start-Up lasts 3 minutes Note: R2, R6 and R7 not used

Figure 1. CLR2160

3-2

Section 3 - Service and Repair

TROUBLESHOOTING (CONTINUED)

No ice

Check the ice bin temperature. If the temperature is in the 3435°F range, the unit is shut down due to low temperature inside. This could be caused by low ambient temperatures or running the unit without a water supply attached.

If the ice bin temperature is above 35°F, the unit should be producing ice. Check to ensure the water trough is full and the pump is operating.

Too much ice

Ensure there is Permagum around the thermistor hole. If there is, proceed to the next step.

The control board is equipped with an adjustment to adjust the level of ice in the bin for customer preference or when used in abnormal installations. With ice stacked to the desired level, check the bin temperature by holding WARMER and COLDER for five seconds. We’ll assume the display showed 38°F for this example. Go to service mode #24 and adjust the setting to that number. This will allow the bin to shut off at this ice level. This temperature needs to be checked after the door has been closed for at least 10 minutes in order for the thermistor temperature to stabilize.

Too little ice

If this is a recurring issue, try adjusting service option #24 colder in 1 or 2° increments until the desired level of ice is achieved.

Ice not sized to customer satisfaction

The thickness of the cubes can be adjusted per the ice thickness section of the manual.

Noise

Some noise from this unit is normal. You may hear the sound of ice dropping into the bin, especially when it is empty. The harvesting processes involves flowing refrigerant and water through valves which may produce a rushing type sound during the harvest. The fan and compressor will produce a continuous low motor noise. If installed, the P60 pump will produce noise at regular intervals as it empties water from the unit. If any of these is objectionable, the unit has an Office mode which can be entered for three hours at a time. During this mode the unit will not produce ice; however, the drain pump will continue to operate.

No water in trough

Ensure the standpipe is fully inserted into the trough.

Check the water valve to see if it is filling the unit.

Watch the water flow over the mold to see if excess water is being splashed out of the trough. This could be the result of improper leveling.

Ice does not release from evaporator

This could be caused by improper leveling or the unit is in need of cleaning.

Poor ice quality

This can be caused by poor incoming water quality. The CLR2160 is designed to produce clear ice in most water; however, abnormal water conditions may result in the need for further filtering.

Water in ice bin

A defect in the drain from the unit will cause water to stop draining from the unit.

Display is showing something other than “Ice,” “ER” or “CL.”

Push one of the keys to see if the display is reset.

Turn unit on and off via the display pad.

Unplug unit, wait one minute and plug back in. If any of these steps return the unit to operation the unit was probably accidently entered into a service mode.

Display is showing a random snaking of characters or a degree symbol is flashing.

The unit is in a special showroom mode. Hold the COLDER key and press the LIGHT key three times to exit.

Display not illuminating but unit operating

First try to plug and unplug the unit. If the display still does not illuminate, there is a four-wire pin connector running from the main board in the base to the display board. One of the wires is disconnected or damaged.

Unit is not operating—no cooling—no fans.

Unplug unit and plug back in. If main board beeps when plugging in the unit then this is most likely a system problem not a board issue.

If board does not beep when plugging in the unit, check the power supply to ensure the outlet is working. Also, check the fuse on the circuit board.

3-3

Section 3 - Service and Repair

CLRCO2175

GENERAL

The U-Line Model CLRCO2175 combines the best of Échelon refrigeration and clear ice-making capabilities into a single unit. A state-of-the-art microprocessor-based controller simplifies operation and troubleshooting. There are four primary modes of operation:

1.Ice Making and Refrigeration (Figure 2).

2.Ice Making and No Refrigeration (Figure 3).

3.Refrigeration and No Ice Making (Figure 4).

4.Ice Harvest/Water fill (No Refrigeration Possible) (Figure 5).

In addition, there are three sub modes of operation:

5.Off (Figure 6).

6.Water Fill - No Refrigeration (Figure 7).

7.Cleaning (No Refrigeration Possible) (Figure 8).

Review the following notes for general information before reading the schematics.

These are some additional general notes and exceptions:

The controller has a four-minute compressor minimum offcycle regardless of thermistor status, for compressor protection and cycling.

When making ice, the controller reads liquid line temperature four minutes into the ice-making cycle to determine the length of that ice-making cycle and subsequent harvest length.

Once an ice-making cycle is initiated, it will continue through to harvest regardless of the bin sensor.

There is a three-minute water fill cycle when the unit is turned on. Mode 6.

In order to maintain adequate refrigerator temperature, the unit will sometimes run in the refrigeration only mode, as shown in Mode 3, even if the ice bin sensor is calling for ice. At the end of each ice harvest, the controller checks the refrigerator sensor and if it is warmer than the higher of 42°F, or the set-point, it will go into refrigeration only mode. The refrigerator must be at 42° or setpoint to make ice continuously. Example:

or below the sensor. However, after the first slab of cubes is harvested, the controller will follow the logic defined in 5 above and realizing the refrigerator is too warm, will continue in refrigeration only mode (3) until the requirement is satisfied. Thus, upon start-up, the user will see one slab of ice dropped in about 30 minutes, and then there will be no more ice until the refrigerator reaches 42°F or set-point. (This may be two to three hours depending on ambient conditions.)

There will also be a water fill cycle after the ice bin has been “full” and then calls to make ice again. This can occur when the refrigerator side is off as shown in Mode 6, or when it is on, which is shown in Mode 8. If the refrigerator side is on, when the fill cycle initiates, it will remain on until the fill cycle is completed, even if the refrigerator sensor is satisfied.

The controller has a four-degree differential designed into it for the refrigerator sensor, such that when it is set to 38°F, the refrigerator will cool until the refrigerator sensor reads 36°F and will not re-initiate refrigerator cooling until the sensor reaches 40°F. So someone monitoring actual temperature (by pressing WARMER momentarily) may see the refrigerator off when the temperature is a degree warmer than set-point, or refrigerator on when it is a degree below set-point. Refer to

Echelon Keypad.

There is no high limit cut-out on this unit; however, if the liquid line sensor were to go out of range (approximately 185°F) the ice maker side of the unit will shut down. The refrigerator will continue to run. When the temperature of the liquid falls back in range, the unit will re-initiate operation. The unit will not normally experience this condition up to 110°F, but conditions such as door openings, heavy loading, restricted airflow, dirty condenser or direct sunlight may contribute to reaching this mode.

Different from the earlier CLRCO2075, this unit uses two relays to control the refrigeration valves. This means that the valves will only be energized when needed.

There is now a thermistor on the refrigerator evaporator that will sense the evaporator plate temperature. This will allow the unit to fully defrost based on temperature of the evaporator plate during the defrost modes.

Setpoint

Temperature

 

38°

42° or lower

ice

38°

45°

no ice

55°

55°

ice

55°

58°

no ice

There is no fill cycle when ice-making re-initiates in this case because the bin sensor has not been satisfied.

When the initial three-minute fill cycle is complete, the unit will enter ice making and refrigeration mode (1) if the bin is empty

3-4

Section 3 - Service and Repair

ULIN_0328_A

Figure 2. CLRCO2175 Mode 1: Ice Making and Refrigeration

3-5

Section 3 - Service and Repair

ULIN_0329_A

Figure 3. CLRCO2175 Mode 2: Ice Making and No Refrigeration (or Ref Defrost)

3-6

Section 3 - Service and Repair

ULIN_0330_A

Figure 4. CLRCO2175 Mode 3: Refrigeration and No Ice Making

3-7

Section 3 - Service and Repair

ULIN_0331_A

Figure 5. CLRCO2175 Mode 4: Ice harvest (No Refrigeration Possible)

3-8

Section 3 - Service and Repair

ULIN_0332_A

Figure 6. CLRCO2175 Mode 5: Off

3-9

Section 3 - Service and Repair

Figure 7. CLRCO2175 Mode 6: Water Fill - No Refrigeration Possible (Normal Start-Up)

3-10

Section 3 - Service and Repair

Figure 8. CLRCO2175 Mode 7: Cleaning (No Refrigeration Possible)

3-11

Section 3 - Service and Repair

THERMISTOR OUTAGE

In the event that the condenser thermistor (T4) fails, the unit will stop all functions and display “ER” on the user interface. The exact error can be accessed via the service mode.

If the refrigerator thermistor (T1) fails, the refrigerator will stop operation; however, the ice maker will continue to function. The display will show “ER.” The exact error can be accessed via the service mode.

If the ice bin thermistor (T2) fails, the ice maker will stop functioning; however, the refrigerator will continue to work. The display will show “ER.” The exact error can be accessed via the service mode.

If the refrigerator evaporator thermistor (T3) fails, the unit will function normally; however, defrosting will occur on a timing interval instead of timing and temperature. The display will show “ER.” The exact error can be accessed via the service mode.

SERVICE

The CLRCO2175 model uses seven relays and four thermistors. There is a variety of built-in servicing features to aid in diagnosing the root problem associated with a unit.

To check to see which relays are currently operating, hold the COLDER key and press the ON/OFF key three times. When entering the sequence keep the COLDER key pressed until you completely release the ON/OFF key for the third time. The display will cycle through a series of numbers to tell which relays are energized. For example, if the unit was in ice-making mode, the display would show 11 20 31 40 51 60 70. The first number is the relay number. In the second number, 1 means ON and 0 means OFF. The relay information can be found in the Control Section.

Each relay can also be turned on and off individually to determine whether or not the board and component are operating. If a board is suspected of not operating correctly, you can run through this sequence to ensure each component is turning on and off through the board correctly. Go into service mode and choose option #22. This will cycle every relay on and off showing 10 11 20 21 …. If a component fails to turn on when the relay does, you can verify if there is voltage present by using a voltmeter to check the board output.

To view the actual refrigerator (T1) temperature, hold the WARMER key until the actual temperature is displayed. To view the actual thermistor readings for 2-4, hold the WARMER and COLDER keys for about five seconds. The display will cycle through the three thermistors and their temperatures. If a thermistor is unused in a unit it will show a “0” reading. For thermistor 4 the display will only show up to “99.” In the event the temperature is higher than this, the display will show a flashing “99.”

In the general section the methods to enter some other service modes are available. For the CLRCO2175 model some useful modes are the ICE MAKER OFF MODE, FORCED REFRIGERATOR DEFROST, ICE THICKNESS ADJUST, CLEAN, AND TEMPORARY SHUTDOWN MODE. These can be useful in servicing the unit.

TROUBLESHOOTING:

Error Codes

E1, E2, E7, E8, E9

Bad thermistor errors. Replace thermistor.

 

Check for thermistor errors by accessing

 

“View thermistor # status (2, 19, 20, or 21).” If

 

the error code is repeated, the thermistor is

 

open or shorted. If a temperature is displayed,

 

the thermistor is not defective.

E3

This will be accompanied by a beep every

 

minute. This signals that the door has been left

 

open for longer than 20 minutes. Close the

 

door to reset. If the light and display do not go

 

off when the door is closed, check to make

 

sure the magnet is positioned properly.

E5

This signals that the unit has been above set-

 

point for more than twelve hours by at least

 

10°. If the unit was just plugged in leave for 24

 

hours to see if the problem is corrected. If it is

 

not corrected, it is most likely a refrigeration

 

system issue.

E6

This signals that the refrigerator section has

 

been at least 10° below set-point for at least

 

twelve hours. This would most likely be caused

 

by a bad relay and the circuit board.

P1

Pump circuit is detecting a drain problem.

 

Consult a plumber to resolve the issue. If unit

 

does not have a P60 installed, then the jumper

 

wire is missing in place of the pump.

After checking the errors, be sure to clear the error log by performing service option 12.

No ice

Check the ice bin temperature. If temperature is in the 34-35°F range the unit is shut down due to low temperature inside. This could be caused by low ambient temperatures or running the unit without a water supply attached.

If the ice bin temperature is above 35°F the unit should be producing ice. Check to ensure the water trough is full and the pump is operating. If the components are not operating, see the service section above.

3-12

Section 3 - Service and Repair

Too much ice

Ensure there is Permagum around the thermistor hole. If there is, proceed to the next step.

The control board is equipped with adjustment to adjust the level of ice in the bin for customer preference or when used in abnormal installations. With ice stacked to the desired level, check the bin temperature by holding WARMER and COLDER for five seconds. We’ll assume the display showed 38°F for this example. Go to service mode #24 and adjust the setting to that number. This will allow the bin to shut off at this ice level. This temperature needs to be checked after the door has been closed for at least 10 minutes in order for the thermistor temperature to stabilize.

Too little ice

If this is a recurring issue, try adjusting service option #24 cooler in 1 or 2° increments until the desired level of ice is achieved.

Ice not sized to customer satisfaction

The thickness of the cubes can be adjusted per the ice thickness section of the manual.

Noise

Some noise from this unit is normal. You may hear the sound of ice dropping into the bin, especially when it is empty. The harvesting process involves flowing refrigerant and water through valves which may produce a rushing type sound during the harvest. The fan and compressor will produce a continuous low motor noise. If equipped, the P60 pump will produce noise at regular intervals as it empties water from the unit. If any of these is objectionable the unit has an Office mode which can be entered for three hours at a time. During this mode the unit will not produce ice; however, the drain pump will continue to operate.

No water in trough

Ensure the stand pipe is fully inserted into the trough.

Check the water valve to see if it is filling the unit.

Watch the water flow over the mold to see if excess water is being splashed out of the trough. This could be the result of improper leveling.

Ice does not release from evaporator

This could be caused by improper leveling or the unit is in need of cleaning.

Poor ice quality

This can be caused by poor incoming water quality. The CLRCO2175 is designed to produce clear ice in most water; however, abnormal water conditions may result in the need for further filtering.

Water in ice bin

A defect in the drain from the unit will cause water to stop draining from the unit.

Display is showing something other than “SP (38),” “ER” or “CL.”

Push one of the keys to see if the display is reset.

Turn unit on and off via the display pad.

Unplug unit, wait one minute and plug back in. If any of these steps returns the unit to operation the unit was probably accidently entered into a service mode.

Display is showing a random snaking of characters or a degree symbol is flashing.

The unit is in a special showroom mode. Hold the COLDER key and press LIGHT three times to exit.

Display not illuminating but unit operating

First try to plug and unplug the unit. If the display still does not illuminate there is a four-wire pin connector running from the main board in the base to the display board. One of the wires is disconnected or damaged.

Unit is not operating—no cooling—no fans.

Unplug unit and plug back in. If main board beeps when plugging in the unit then this is most likely a system problem, not a board issue.

If board does not beep when plugging in the unit, check the power supply to ensure the outlet is working. Also, check the fuse on the circuit board.

Refrigerator not cooling but ice maker working

Check to ensure the refrigerator thermistor is working properly.

Ice maker not operating—no water flowing over mold

The refrigerator needs to be at or below set-point (or 42°F) to start the ice-making process. If the unit is cool enough there could be a defective bin thermistor, defective condenser thermistor or defective solenoid coil.

3-13

Section 3 - Service and Repair

2175R/2115R

2175WC/2115WC

2175BEV

2175DWRR/2275DWRWS

2275ZWC

(Includes Overlay Models)

GENERAL

Refrigerant is pumped from the compressor to the condenser as a high pressure, high temperature vapor.

As the refrigerant cools in the high pressure condenser, the vapor condenses to liquid. During this phase change, a great amount of heat is rejected with the help of the condenser fan.

The liquid then flows to the dryer where it is strained and filtered.

pressure of the refrigerant is reduced to the evaporating or low side pressure.

The reduction of pressure on the liquid refrigerant causes it to boil or vaporize until it reaches saturation temperature. As the low temperature refrigerant passes through the evaporator coil, it continues to absorb a lot of heat, causing the boiling action to continue until the refrigerant is completely vaporized. It is during this phase that the most heat is absorbed (the cooling takes place) in the refrigerator.

The refrigerant vapor leaving the evaporator travels through the suction line to the compressor inlet. The compressor takes the low pressure vapor and compresses it, increasing both pressure and temperature. The hot high pressure gas is pumped out the discharge line and into the condenser. The cycle continues

From the dryer, the refrigerant flows through the capillary tube which meters the liquid refrigerant to the evaporator. The

COMPRESSOR

CONDENSER

DRYER

EVAPORATOR

CAPILLARY TUBE

ULIN_0280_A

Figure 9. 2175R/2115R/2175WC/2175BEV/2275DWRR/2175DWRR

3-14

Section 3 - Service and Repair

COMPRESSOR

 

COMPRESSOR

TOP

 

CONDENSER

TOP

COMPARTMENT

CONDENSER

 

COMPARTMENT

SOLENOID VALVE

THERMISTOR

THERMISTOR

SOLENOID VALVE

 

DRYER

 

DRYER

 

SOLENOID VALVE

 

SOLENOID VALVE

 

EVAPORATOR

 

EVAPORATOR

 

CAPILLARY TUBE

 

CAPILLARY TUBE

 

 

BOTTOM

 

BOTTOM

 

COMPARTMENT

 

COMPARTMENT

 

THERMISTOR

 

THERMISTOR

DRYER

 

DRYER

 

EVAPORATOR

 

EVAPORATOR

 

CAPILLARY TUBE

DWR052

CAPILLARY TUBE

 

DWR052

Figure 10. 2275DWRWS/2275ZWC

 

REVIEW THE FOLLOWING NOTES FOR GENERAL INFORMATION.

The unit is equipped with a four-minute compressor-off cycle.

The mullion heater is energized on the 2175DWRR whenever the T3 temperature falls below 90°F.

Normal defrosting is based on a time and temperature scale. See chart on page 3-40. Defrost ends if evaporator thermistor reaches stop point or maximum time, whichever comes first.

THERMISTOR OUTAGE (EXCEPT DWRWS & 2275ZWC):

If the refrigerator thermistor (T1) fails, the unit will continue to operate based on a preset time interval of 10 minutes on and 30 minutes off. The display will show “ER.”

If the evaporator thermistor (T2) fails, the unit will operate except it will defrost solely on time and ignore the temperature reading. The display will show “ER.” If the ambient thermistor (T3) fails, the unit will always have the mullion heater energized. The display will show “ER.”

If T1 is not working, unit runs a preset time interval — 10 minutes ON, 60 minutes OFF.

If T2 is not working, unit runs a preset time interval — 10 minutes ON, 60 minutes OFF.

If either T3 or T4 is open, use 90 minutes for defrost length. These errors do not show on the display; they are only logged on the board.

SERVICE

To check to see which relays are currently operating, hold the COLDER key and press the ON/OFF key three times. When entering the sequence, keep the COLDER key pressed until you completely release the ON/OFF key for the third time. The display will cycle through a series of numbers to tell which relays are energized. For example, if the unit was cooling the bottom drawer the display would show 11 20 31 40 50 61 70. The first number is the relay number. In the second number, 1 means ON and 0 means OFF. The relay information can be found in the Control Section.

THERMISTOR OUTAGE (DWRWS & 2275ZWC)

Each relay can also be turned on and off individually to determine

 

whether or not the board and component are operating. If a board is

3-15

Section 3 - Service and Repair

suspected of not operating correctly, you can run through this sequence to ensure each component is turning on and off through the board correctly. Go into service mode and choose option #22. This will cycle every relay on and off showing 10 11 20 21 …. If a component fails to turn on when the relay does, you can verify if there is voltage present by using a voltmeter to check the board output. 1 means ON and 0 means OFF.

To view the actual refrigerator (T1) temperature, hold the WARMER key until the actual temperature is displayed. To view the actual thermistor readings for 2-4, hold the WARMER and COLDER keys for about five seconds. The display will cycle through the three thermistors and their temperatures. If a thermistor is unused in a unit it will show a “0” reading.

In the general section the methods to enter some other service modes are available.

TROUBLESHOOTING:

Error Codes

E1, E2, E7,

 

E8 & E9

Bad thermistor errors. Replace thermistor. Check for

 

thermistor errors by accessing “View thermistor #

 

status (2, 19, 20, or 21).” If the error code is repeated,

 

the thermistor is open or shorted. If a temperature is

 

displayed, the thermistor is not defective.

E3

This will be accompanied by a beep every minute. This

 

signals that the door (or bottom drawer) has been left

 

open for longer than 20 minutes. Close the door to

 

reset. If the light and display do not go off when the

 

door is closed, check to make sure the magnet is

 

positioned properly.

E5

This signals that the unit has been above set-point for

 

more than twelve hours by at least 10°. If the unit was

 

just plugged in, leave for 24 hours to see if the problem

 

is corrected. If it is not corrected, it is most likely a

 

refrigeration system issue.

E6

This signals that the refrigerator section has been at

 

least 10° below set-point for at least twelve hours. This

 

would most likely be caused by a bad relay and the

 

circuit board.

E10

This will be accompanied by a beep every minute. This

 

signals that the top drawer has been left open for

 

longer than 20 minutes. Close the door to reset. If the

light and display do not go off when the door is closed, check to make sure the magnet is positioned properly.

After checking the errors, be sure to clear the error log by performing service option 12.

Excessive Frost on evaporator

Force a defrost cycle via the keypad input or shut down unit and thaw if frost is very thick. If the evaporator clears, it was due to some type of abnormal operation. If the unit will continue to be used in this manner, the defrost length can be lengthened in the service menu to prevent future issues. Extending this length may be detrimental to the refrigerator temperature. During very long defrosts the temperature may raise higher than desired.

During the forced defrost no heating will occur. This is just a prolonged off cycle.

Noise

Some noise is normal such as a hum from the fans/compressor.

Display is showing something other than “SP (38)” or “ER.”

Push one of the keys to see if the display is reset.

Turn unit on and off via the display pad.

Unplug unit, wait one minute and plug back in. If any of these steps returns the unit to operation, the unit was probably accidently entered into a service mode.

Display is showing a random snaking of characters or a degree symbol is flashing.

The unit is in a special showroom mode. Hold the COLDER key and press the LIGHT key three times to exit.

Display not illuminating but unit operating

First try to plug and unplug the unit. If the display still does not illuminate there is a four-wire pin connector running from the main board in the base to the display board. One of the wires is disconnected or damaged.

Unit is not operating—no cooling—no fans.

Unplug unit and plug back in. If main boards beeps when plugging in the unit then this is most likely a system problem, not a board issue.

If board does not beep when plugging in the unit, check the power supply to ensure the outlet is working. Also, check the fuse on the circuit board.

Refrigerator too warm

Check the actual refrigerator temperature. If set to 38°F, the actual temperature should be between 36°F and 40°F during normal operation. Recent door openings, product loading or defrost cycles will push the temperature higher for short time periods.

3-16

Section 3 - Service and Repair

CO2175F/2175RF/CO2175DWR

GENERAL

U-Line Frost Free Refrigeration System

Cooling Mode:

Bypass solenoid valve closed

Evaporator fan operating

Refrigerant flows through capillary tube

Normal vapor/compression cycle refrigeration

Drain heater off (CO2175F/2175RF only) Defrost Mode:

Bypass solenoid valve open

Refrigerant flows through bypass system

Vapor flows from condenser to evaporator without a phase change

Drain heater on (CO2175F/2175RF only)

 

COMPRESSOR

 

CONDENSER

 

 

DRYER

 

EVAPORATOR

 

FLOW WHEN SOLENOID

 

 

VALVE IS CLOSED

 

 

CAPILLARY TUBE

 

 

 

FLOW WHEN SOLENOID

 

 

VALVE IS OPEN

 

SOLENOID VALVE

ULIN_0369_A

 

 

 

Figure 11. Frost Free Refrigeration System.

 

3-17

Section 3 - Service and Repair

Air flow in at evaporator blade

Air flow out at evaporator outlet

Air passes though fin tube evaporator

Condensate drains down trough under evaporator, into drain pan, and into condensate pan through drain hose. The drain trough is warmed during defrost by contact with evaporator fins and drain heater attached to the drain pan.

ULIN_0370_A

Figure 12. CO2175R & 2175RF Only: Typical Frost Free Airflow Configuration

THERMISTORS

Three or four thermistors are employed. All are of the type 2. These measure the refrigerator, freezer, ice maker, or evaporator drain pan.

REED SWITCH

These units defrost on time and temperature. The Defrost Cycle runs for a minimum of 18 minutes (adjustable), and stops at a maximum of 45 minutes or when T4 reaches 42°F (nonadjustable), whichever comes first.

A reed switch is mounted to the underside of the cabinet and a magnet is mounted to the door. When the door is closed the magnet trips the switch which turns the light and display off.

For the CO2175DWR model there is a second reed switch mounted on the inside rear left corner of the top drawer.

Both drawers are monitored individually; however, when either drawer is opened both cabinets light and the displays energize.

DEFROST

3-18

Section 3 - Service and Repair

ICE MAKER

WARNING

DO NOT cycle ice maker by hand. This will cause damage to the ice maker.

Freeze cycle

Neither ice maker relay is energized.

Unit is cooling down to 15°F set-point.

The unit may cycle on and off as the ice maker is pulling down to maintain the proper refrigerator/freezer temperatures.

The minimum freeze time as permitted by the board is 20 minutes (CO2175F) or 75 minutes (CO2175DWR).

Harvest cycle 1

Relay 6 is energized for 30 seconds and relay 7 is energized for 10 minutes. The bin arm must be fully lowered and the lower drawer closed for this cycle to begin.

Harvest cycle 2

The lower drawer must remain closed for the cycle to continue. In the event that it is opened the timers will hold until the drawer is closed. At that time they will resume the cycle. If the unit has a door rather than a drawer it is not effected.

Relay 6 is now off and the ice maker is powered completely by relay 7. This occurs at approximately the 2 o'clock position.

Ejector blades stall on the ice until the heater releases it from the mold.

This cycle will last a few minutes.

Water fill cycle

At about the 10 o'clock setting the water valve is energized for about 7 seconds to refill the mold.

At the conclusion of the cycle the blades stop at the 12 o'clock position.

Harvest cycle 3

Following the water fill relay 7 remains energized for the balance of the 10 minutes that it needs to remain on.

Storage mode

The bin arm is in the UP position, either held in place by the ice or manually raised. The board continues to signal the ice maker to harvest so relays 6 and 7 will energize; however, with the arm up the cycle will not begin.

Review the following notes for general information before reading the schematics.

These are some additional general notes and exceptions:

The unit is equipped with a four-minute compressor off cycle.

The controller is designed to be able to show and set the refrigerator set-point. Based on this input the controller tries to maintain the perfect balance of refrigeration to keep the refrigerator and freezer at acceptable temperatures. For this reason the refrigerator temperature may fluctuate from 34°F to 40°F depending on the freezer load. The freezer will also float in a -10 to +10 range depending on the refrigerator load and usage.

The ice harvest will be initiated when the ice maker temperature drops to 15°F. Through a built-in timer the ice maker can only harvest once every 20 minutes (for CO2175F) or 75 minutes (CO2175DWR) at a maximum so if the temperature is at 15°F it will not necessarily cycle depending on when the previous cycle had occurred.

The drain pan heater will energize five minutes before and after the hot gas portion of the defrost cycle (not on CO2175DWR). This time is not included in the defrost total length.

If the unit is turned off while the ice maker is in a harvest mode, the display will flash OFF while the ice is harvesting

— up to 10 minutes.

3-19

Section 3 - Service and Repair

ULIN_0348a_A

Figure 13. CO2175F Harvest-1 Cycle (First 30 Seconds

Figure 14. CO2175F Harvest-2 Cycle (After 30 Seconds)

3-20

Section 3 - Service and Repair

Figure 15. CO2175F Harvest-3 Cycle (Post Harvest)

Figure 16. CO2175F Water Fill Cycle

3-21

Section 3 - Service and Repair

ULIN_0350a_A

Figure 17. CO2175F Freeze Cycle

Figure 18. CO2175/2275DWR Harvest-1 Cycle (First 30 Seconds)

3-22

U-Line 2175-2275DWRR, 2175RF, 2275DWRWS, CLRCO2175, 2115WCOL, CO2175-CO2275DWR, 2175WCOL, 2175BEV, 2115WC, CLR2160, 2175WC, 2275DWRWOL, 2115R, 2175R, CO2175F, U-1175BEVS-00 User Manual

Section 3 - Service and Repair

ULIN_0345_A

Figure 19. CO2175/2275DWR Harvest-2 Cycle (After 30 Seconds)

Figure 20. CO2175/2275DWR Harvest-3 Cycle (Post Harvest)

3-23

Section 3 - Service and Repair

ULIN_0346_A

Figure 21. CO2175/2275DWR Water Fill Cycle

ULIN_0347_A

Figure 22. CO2175/2275DWR Freeze Fill Cycle

3-24

Section 3 - Service and Repair

THERMISTOR OUTAGE

If the refrigerator thermistor (T1) fails, the unit will continue to operate based on the freezer temperature. Cycle lengths and temperatures may not be exact; however, this will prevent the loss of perishables. The display will show “ER.” The exact error can be accessed via the service mode.

If the ice maker thermistor (T2) fails, the unit will operate except it will not produce ice. The display will show “ER.” The exact error can be accessed via the service mode.

If the freezer thermistor (T3) fails, the unit will continue to operate based on the refrigerator (T1) temperature. Cycle lengths and temperatures may not be exact; however, this will prevent the loss of perishables. The display will show “ER.” The exact error can be accessed via the service mode.

If the pan thermistor (T4) fails, the unit will operate normally; however, the defrost will take place on time only rather than time/ temperature. The display will show “ER.” The exact error can be accessed via the service mode.

SERVICE

To check to see which relays are currently operating, hold the COLDER key and press the ON/OFF key three times. When entering the sequence, keep the COLDER key pressed until you completely release the ON/OFF key for the third time. The display will cycle through a series of numbers to tell which relays are energized. For example, if the unit was in ice-making mode the display would show 11 20 31 40 51 60 70. The first number is the relay number. In the second number, 1 means ON and 2 means OFF. The relay information can be found in the Control Section.

Each relay can also be turned on and off individually to determine whether or not the board and component are operating. If a board is suspected of not operating correctly, you can run through this sequence to ensure each component is turning on and off through the board correctly. Go into service mode and choose option #22. This will cycle every relay on and off showing 10 11 20 21 …. If a component fails to turn on when the relay does, you can verify if there is voltage present by using a voltmeter to check the board output.

To view the actual refrigerator (T1) temperature, hold the WARMER key until the actual temperature is displayed. To view the actual thermistor readings for 2-4, hold the WARMER and COLDER keys for about five seconds. The display will cycle through the three thermistors and their temperatures. If a thermistor is unused in a unit it will show a “0” reading.

In the general section the methods to enter some other service modes are available. For these models some useful modes are the ICE MAKER OFF MODE, FORCED ICE MAKER HARVEST, and FORCED REFRIGERATOR DEFROST. These can be useful in servicing the unit.

TROUBLESHOOTING:

Error Codes

E1, E2, E7, E8, E9

Bad thermistor errors. Replace thermistor.

 

Check for thermistor errors by accessing

 

“View thermistor # status (2, 19, 20, or 21).” If

 

the error code is repeated, the thermistor is

 

open or shorted. If a temperature is displayed,

 

the thermistor is not defective.

E3

This will be accompanied by a beep every

 

minute. This signals that the door (or bottom

 

drawer) has been left open for longer than 20

 

minutes. Close the door to reset. If the light

 

and display do not go off when the door is

 

closed check to make sure the magnet is

 

positioned properly.

E5

This signals that the unit has been above set-

 

point for more than twelve hours by at least 10

 

degrees. After repair is completed, leave for 24

 

hours to see if the problem is corrected. If it is

 

not corrected, it is most likely a refrigeration

 

system issue.

E6

This signals that the refrigerator section has

 

been at least 10 degrees below set-point for at

 

least twelve hours. This would most likely be

 

caused by a bad relay and the circuit board.

E10

This will be accompanied by a beep every

 

minute. This signals that the top drawer has

 

been left open for longer than 20 minutes.

Close the door to reset. If the light and display do not go off when the door is closed check to make sure the magnet is positioned properly.

After checking the errors be sure to clear the error log by performing service option 12.

Not making ice

The ice maker needs to be down to 15°F before initiating a harvest. If above 15°F, the unit is not cooling properly or has not been plugged in for a sufficient period of time.

The CO2175DWR model will only harvest ice with the lower drawer closed.

To check the operation of the circuit board and the ice maker, force an ice harvest through the keypad input. During this time you can check to see if the blades rotate, if they stop anywhere, if the water valve opens, etc.

3-25

Section 3 - Service and Repair

Too much ice

Ensure the bin arm is correctly moving during an ice production cycle and that it can touch the top of the ice. If not, the arm may have been bent.

Excessive frost on evaporator

Force a defrost cycle via the keypad input. If the evaporator clears it was due to some type of abnormal operation. If the unit will continue to be used in this manner the defrost length can be lengthened in the service menu to prevent future issues. Extending this length may be detrimental to the freezer section by causing food to melt or ice to fuse more easily.

During the forced defrost, if no heating occurs, check the hot gas coil and heater for voltage and resistance.

Noise

These are frost-free units with two fans, compressor, and two solenoid valves. Some noise is normal such as a hum from the fans/ compressor. Also, during an ice harvest it is normal to hear water filling the mold and cubes dropping into the bucket.

Poor ice quality

This can be caused by poor incoming water quality.

Display is showing something other than “SP (38)” or “ER.”

Push one of the keys to see if the display is reset.

Turn unit on and off via the display pad.

Unplug unit, wait one minute, and plug back in. If any of these steps returns the unit to operation, the unit was probably accidentally entered into a service mode.

Display is showing a random snaking of characters or a degree symbol is flashing.

The unit is in a special showroom mode. Hold the COLDER key and press the LIGHT key three times to exit.

Display not illuminating but unit operating

First try to plug and unplug the unit. If the display still does not illuminate there is a four-wire pin connector running from the main board in the base to the display board. One of the wires is disconnected or damaged.

Unit is not operating—no cooling—no fans.

Unplug unit and plug back in. If main board beeps when plugging in the unit, then this is most likely a system problem, not a board issue.

If board does not beep when plugging in the unit, check the power supply to ensure the outlet is working. Also, check the fuse on the circuit board.

3-26

Section 3 - Service and Repair

1175R/1115R

1175WC/1115WC

1175BEV/ADA24R

GENERAL

Refrigerant is pumped from the compressor to the condenser as a high pressure, high temperature vapor.

As the refrigerant cools in the high pressure condenser, the vapor condenses to liquid. During this phase change, a great amount of heat is rejected with the help of the condenser fan.

The liquid then flows to the dryer where it is strained and filtered.

From the dryer, the refrigerant flows through the capillary tube which meters the liquid refrigerant to the evaporator. The pressure of the refrigerant is reduced to the evaporating or low side pressure.

The reduction of pressure on the liquid refrigerant causes it to boil or vaporize until it reaches saturation temperature. As the low temperature refrigerant passes through the evaporator coil, it continues to absorb a lot of heat, causing the boiling action to continue until the refrigerant is completely vaporized. It is during this phase that the most heat is absorbed (the cooling takes place) in the refrigerator.

The refrigerant vapor leaving the evaporator travels through the suction line to the compressor inlet. The compressor takes the low pressure vapor and compresses it, increasing both pressure and temperature. The hot high pressure gas is pumped out the discharge line and into the condenser. The cycle continues

COMPRESSOR

CONDENSER

DRYER

EVAPORATOR

CAPILLARY TUBE

ULIN_0280_A

Figure 23. 1175R/1115R/1175WC//1115WC1175BEV/ADA24R Normal Vapor/Compression Cycle

These are some additional general notes and exceptions:

• The unit is equipped with a four-minute compressor off cycle.

3-27

Section 3 - Service and Repair

THERMISTOR OUTAGE

If the refrigerator thermistor (T1) fails, the unit will continue to operate based on a preset time interval of 10 minutes on and 30 minutes off. The display will show “E1.”

TROUBLESHOOTING

Error Code

E1, E2

Bad thermistor errors. Replace thermistor. Check

 

for thermistor errors by accessing "View thermistor

 

# status (2)." If the error code is repeated, the

 

thermistor is open or shorted. If a temperature is

 

displayed, the thermistor is not defective.

E3

This signals that the door (or bottom drawer) has

 

been left open for longer than 20 minutes. Close the

 

door to reset. If the light and display do not go off

 

when the door is closed, check to make sure the

 

magnet is positioned properly.

E5

This signals that the unit has been above set-point

 

for more than twelve hours by at least 10 degrees. If

 

the unit was just plugged in, leave for 24 hours to

 

see if the problem is corrected. If it is not corrected,

 

it is most likely a refrigeration system issue.

E6

This signals that the refrigerator section has been at

 

least 10 degrees below set-point for at least twelve

hours. This would most likely be caused by a bad relay and the circuit board.

After checking the errors be sure to clear the error log by performing service option 12.

Excessive Frost on evaporator

Shut down unit and thaw if frost is very thick. The unit may be used in an abnormal manner. If the unit will continue to be used in this manner the defrost length can be lengthened in the service menu to prevent future issues. Extending this length may be detrimental to the refrigerator temperature. During very long defrosts the temperature may rise higher than desired.

CAUTION

If frost is heavy, divert water from drain pan to prevent water on floor.

Noise

Some noise is normal, such as a hum from the fans/compressor.

Display is showing something other than “SP (38)” or “ER.”

Push one of the keys to see if the display is reset.

Turn unit on and off via the display pad.

Unplug unit, wait one minute, and plug back in. If any of these steps returns the unit to operation the unit was probably accidentally entered into a service mode.

Display is showing a random snaking of characters or a degree symbol is flashing.

The unit is in a special showroom mode. Hold the COLDER key and press the LIGHT key three times to exit.

Refrigerator too warm

Check the actual refrigerator temperature. If set to 38°F, the actual temperature should be between 36°F and 40°F during normal operation. Recent door openings, product loading, or defrost cycles will push the temperature higher for short time periods.

3-28

Section 3 - Service and Repair

OPERATING ENVIRONMENTAL/ CLIMATE CONTROL REQUIREMENTS

For All - Except WC, ADA, DWRWS, BEV Center, CODWR & Dual Zone(Z)

Many U-Line models are designed to operate in harsh outdoor/ marine environments. Special considerations include the following:

The units are designed to operate between 50°F (10°C) and 110°F (40°C). High ambient temperatures (110°F or higher) may reduce the unit's ability to reach low temperatures and may also reduce the ice production rate for those models with icemakers.

If the ambient temperature is expected to drop below 45F, drain all water from the unit to prevent freezing damage not covered by the warranty.

For best performance, keep the unit out of direct sunlight and away from heat generating equipment.

For best performance and life outdoors, place under a counter or provide shelter of some kind.

In climates where high humidity and dew points are present, condensation may appear on outside surfaces. This is considered normal. The condensation will disappear when the humidity drops.

For WC, ADA, DWRWS, CODWR, BEV, CLRCO & Dual Zone (Z)

Many U-Line models are designed to operate in harsh outdoor/ marine environments. Special considerations include the following:

The units are designed to operate between 50°F (10°C) and 110°F (40°C). High ambient temperatures (110°F or higher) may reduce the unit's ability to reach low temperatures.

For best performance, keep the unit out of direct sunlight and away from heat generating equipment.

In climates where high humidity and dew points are present, condensation may appear on outside surfaces. This is considered normal. The condensation will disappear when the humidity drops.

U-Line does not recommend installation of glass front models (Wine Captain® wine storage models and Beverage Centers) as well as the CLRCO, Combo Drawer model (Refrigerator/Freezer/ Ice Maker) outdoors, or in tropical climates where high humidity and dew point are present on a regular basis, unless airconditioning (typical 72°F, 75%RH) will be used.

ÉCHELON ELECTRONIC CONTROL

Échelon Keypad Options

DANGER

Electrocution can cause death or serious injury. Take precautions when touching a bare circuit board. Wear an antistatic wriststrap and ground it to an electrical ground or grounded water pipe. Handle circuit boards carefully and avoid touching components.

NOTE: When touching key combinations in which you hold one key and press another key three times, it is important to carefully follow the procedure.

1.Hold the desired key ensuring the light above the key is lit.

2.Press the other key three times, ensuring it lights up each time.

3.Release the held key only after releasing the pressed key for the third time.

Except as noted, these functions are available on all models.

ON/OFF

The ON/OFF mode allows the unit to be turned on and off via the keypad. To do this, hold the key for approximately 10 seconds until the “F” begins to flash. Release and the unit will switch modes. In the OFF position the cabinet light will remain operational. This mode does not disconnect power from the circuit board so it is still “live.” Turning the unit off while in Clean, Ice Maker Off, Forced Harvest, or Forced Defrost will cancel those modes. If this mode is entered while a unit is in an ice-making harvest mode it will continue its cycle and flash OFF until completed.

CABINET LIGHT

On units with glass doors, touching the light key will turn on the cabinet light for four hours at a time. Touching the key again will turn the light off. Using the cabinet light for more than four hours may be detrimental to the cabinet temperature and product. Only available on models 2115WC, 2175WC, 2275DWRWS and 2275ZWS/2275ZWCOL.

ADJUSTING THE SET-POINT

- ALL MODELS EXCEPT 2275DWRWS/2275ZWC/ 2275ZWCOL

To adjust the set-point press and release either the WARMER or COLDER key. This will start the set-point flashing. While in this mode you can adjust the set-point warmer or colder until the desired temperature is reached. The factory recommended set-point is 38°F for refrigerators/refrigerator-freezers and 50°F for wine coolers. When adjustment is complete, stop touching the display and the setpoint will be saved in approximately five seconds. Not available on

CLR2160.

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Section 3 - Service and Repair

ADJUSTING THE SET-POINT - 2275DWRWS ONLY

1.Press and release the WARMER icon. The top of the F in °F of the top drawer will begin to flash. This will allow you to adjust the temperature of the top drawer. In 10 seconds of inactivity, the bottom bar of the F in °F will begin to flash (see below); this will allow you to adjust the temperature of the bottom drawer. Adjustments to the lower drawer can be made immediately if the LIGHT icon is pressed.

2.While the top or bottom bar of the F in °F is flashing, press the WARMER or COOLER icon as required to adjust the set-point temperature. The change will be set five seconds after adjusting the temperature and the new set-point temperature will be displayed. Allow the unit to sit for 10 seconds to return to normal mode.

ADJUSTING THE SET-POINT - 2275ZWC/2275ZWCOL ONLY

IMPORTANT

Adjust the set-point temperature and wait 24 hours for the temperature to stabilize before rechecking.

.

Power

Warmer

Cooler

Display

 

 

Light

 

 

 

Display

Warmer

Cooler

 

 

 

LOWER ZONE CONTROLS

 

 

 

 

 

 

ULIN_1009_A

 

UPPER ZONE CONTROLS

 

 

 

Power

Warmer

Cooler

Display

 

 

Light

 

 

 

Display

Warmer

Cooler

 

 

 

 

LOWER ZONE CONTROLS

 

 

 

 

 

 

 

 

 

 

 

ULIN_1012_A

Figure 24. Adjusting Set-Point Temperature-2275ZWC/

2275ZWCOL

This default temperature is used by the controller to maintain the temperature zones in your unit.

The default temperatures are a recommendation. If further temperature adjustments are required, use the following procedure to adjust the set-points.

1.Press and release the desired zone WARMER icon to put the controller in the SET TEMPERATURE mode. The current range symbol will show on the display (top, Figure 24).

Note: If no further action is taken, this mode will self cancel in five seconds, and the original set-point temperature will be displayed.

2.Press the WARMER or COOLER icon to scroll to the desired range (RW, WW, SW, BV).

3.When the desired range is displayed, press the LIGHT icon to display the current set-point temperature (bottom, Figure 24).

Note: Set-point temperature can only be changed when the decimal is flashing.

4.When the decimal is flashing, press the WARMER or COOLER icon as required to adjust the set-point temperature.

5.When the desired set-point is displayed, press the LIGHT icon. The new set-point will show in the display.

6.Repeat for other zone display if required.

IMPORTANT

Whenever a zone range is changed (example: RW to WW), it will revert to the factory default.

VIEWING ACTUAL TEMPERATURE

- ALL MODELS EXCEPT 2275DWRWS/2275ZWC/ 2275ZWCOL

There are two modes to view temperature. In viewing temperature in these modes, any offsets are taken into account. This means that if you place a thermistor in a known temperature, let’s say ice water, it may not read the 32°F that you would assume. If the control offset was preset at -3°F while you placed the thermistor in an icebath, the actual thermistor reading when viewing actual temperature would read 35°F. In the unit this would cause the cabinet to push itself 3° cooler. To view pure thermistor readings, you must go into the service menu and choose the correct option.

To view T1 (normally refrigerator temperature) hold the WARMER key for approximately five seconds until the “F” flashes. Release and the display will show the corrected refrigerator temperature. For Wine Cooler models the display will cycle through all three zones. These temperatures are approximate and calibrated for a cabinet in normal ambient temperatures with some product load. Checking a completely unloaded cabinet may result in other temperatures. Not available on CLR2160.

To view T2-T4, hold both the WARMER and COLDER keys for approximately five seconds until the first thermistor reading appears. At this time the display will cycle through thermistors 2-4 and their accompanying readings. If a thermistor is not used on that particular model, it will show “0” and if the thermistor is not working, it will show an ER.

3-30

Section 3 - Service and Repair

VIEWING ACTUAL TEMPERATURE - 2275DWRWS ONLY

To view the temperature in the top and bottom drawer (T1 and T2), hold the WARMER key for five seconds until “°F” flashes. Release and the display will show the corrected temperatures of both zones on their respective displays. To view the temperature of T3 and T4, you must use the service mode.

VIEWING ACTUAL TEMPERATURE - 2275ZWC/2275ZWCOL ONLY

To display actual zone temperatures (not set-point):

1.Press and hold the WARMER icon for the desired zone for approximately five seconds until unit beeps, and release when the decimal in the display begins to flash (Figure 25).

2.The display will show the actual zone temperature.

3.After five seconds, the display will return to the set-point temperature.

 

 

UPPER ZONE CONTROLS

 

 

 

 

 

 

 

 

 

 

 

Power Warmer Cooler Display

 

 

Light

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Display Warmer Cooler

 

 

 

 

 

 

 

 

LOWER ZONE CONTROLS

 

 

 

 

ULIN_1011_A

 

 

 

 

 

 

 

Figure 25. Displaying Zone Temperature

CHANGING FROM FAHRENHEIT TO CELSIUS

To change the displayed temperature from °F to °C, hold the LIGHT key and press the down arrow three times. This will change all values to °C. When the key combination is accepted the control will beep once and change values.

SHOWROOM MODE

This mode is designed to show units in a display environment. When in this mode the only functions will be the control and cabinet lights. The compressor, fans, etc. will not operate. To enter this mode hold the down arrow and press the LIGHT button three times. When entered, the unit will beep once and the degree symbol will begin to flash. When the degree symbol is flashing the unit will allow the use of the control for demonstrations.

On early models, after not touching the unit for one minute the display will begin to “snake” around. This is meant to alert you the unit is in showroom mode.

On later models, the degree (°) flashes.

The unit can be left in this mode indefinitely. If you again want to demo the control, touch any key and the degree symbol will begin to flash. To exit this mode: If using software version 2.8, this mode will exit automatically when the unit is unplugged. If using software version 2.9, this mode needs to be exited by the same key combination as used to enter the mode.

SERVICE MODE

This mode has 27 different options available for service diagnostics. To enter the mode hold the WARMER key and press the LIGHT

button three times. The display will show “0” and the board will beep once. When in this mode the WARMER and COLDER keys will act as up and down arrows to select the desired option. The LIGHT key is the ENTER key and will enter a function. If changing a function, you must press the LIGHT button again to retain the changed setting. To exit the service mode, scroll to option 99 and press the LIGHT key. After five minutes of not touching any keys the mode will also exit automatically.

DISPLAY TOGGLE

On glass door units the display normally stays on all the time. To have the display turn off with the door press the up arrow and touch the ON/OFF key three times. The °F sign will flash and the board will beep once to let you know the mode has been accepted. This mode can be toggled on or off by the same key combination. To see if the display should be staying on 100% or turning off with the door, you can check service option 8. Only available on

2115WC, 2175W, 2275DWRWS, 2175BEV, 2275ZWC & 2275ZWCOL.

BLACKOUT MODE

Hold the LIGHT key for 10 seconds until the °F starts flashing. When released, the unit will beep once and the display and cabinet light will shut off. To cancel this mode, hold the LIGHT key again for about 10-12 seconds.

CLEAN CYCLE

To enter the self-cleaning cycle hold the ON/OFF key and press the light three times. The unit will beep once and the display will show CL. Follow the cleaning instructions. At the conclusion of this mode (1 hour) the display will revert to set-point and the unit will resume normal operation. To cancel this mode turn the unit off via the keypad. Only available on CLR2160 and

CLRCO2175.

ICE MAKER OFF MODE

This mode will stop ice production. To enter hold the ON/OFF key and press the up arrow three times. The unit will beep once when the mode is entered. After 5-10 seconds the display will start to scroll from “SP” to “Ice” to “Off” as long as the mode is active. To exit either turn the unit off via keypad or do the same key combination. Only available on CO2175F, CLRCO2175 and

CO2175DWR.

FORCED HARVEST

This mode can be used to force ice to harvest from the mold. To enter this mode hold LIGHT key and press the up arrow three times. The unit will initiate an ice harvest. There is no audible tone when entering this mode. Only available on CO2175F and

CO2175DWR.

3-31

Section 3 - Service and Repair

FORCED DEFROST

This will allow the unit to defrost quickly. For R and WC units, this is just an off cycle. For units with hot gas defrost the unit will enter a hot gas defrost per the specification. Hold the LIGHT key and press ON/OFF three times. The unit will beep once when entering this mode. To exit this mode either do the same key combination or turn the unit off via the display. Not available on CLR2160.

ICE THICKNESS ADJUST

This will allow addition or subtraction of up to five minutes from the ice-making cycle. To enter this mode hold the up arrow and press the down arrow three times. The unit will beep once and display the current ice thickness. To adjust up or down use the arrows. Press LIGHT key when completed. Please refer to the ice thickness section of the manual to view proper cube sizes and recommendations.

Only available on CLR2160 and CLRCO2175.

TEMPORARY SHUTDOWN/OFFICE MODE

In some cases it may be requested for the unit to be shut down for short periods during meetings for example. To do this hold the down arrow and press the up arrow three times. The unit will beep once and show OFF on the display. This mode can be canceled by removing power from the unit or turning it on via the display. The mode will automatically be changed back to ON after three hours.

Only available on CLR2160 and CLRCO2175.

RELAY STATUS

To see which relays are operating, hold the down arrow and hit ON/ OFF three times. The unit will scroll through all relays and whether they are on or off. See specific unit section for explanation.

MODEL NUMBER CHANGE

Only the main circuit board requires model number selection. The display board is universal and will automatically adapt to the unit it is plugged into. The model number can be changed with the board installed or uninstalled from the unit. To program uninstalled you will need a display board and a power supply. For the power supply hook a neutral wire up to pin 10 and a 120V wire to pin 8 of the circuit board.

1.Plug in unit.

2.The display may show a SP or --, either is OK.

3.Install a jumper on J3. The jumper can be obtained from U-Line P/ N 68080.

4.Hold down WARMER, COLDER and LIGHT buttons until display shows model number and main board beeps.
5.Use WARMER/COLDER to select new model number.

61-2175R 120V

75-2175R 220V

62-2175WC 120V

76-2175WC 220V

63-2175BEV 120V

77-2175BEV 220V

64-CO2175F 120V

78-CO2175 220V

65-2175RF 120V

79-2175RF 220V

66-CO2175DWR 120V

80-CO2175DWR 220V

67-CLR2160 120V

81-CLR2160 220V

68-CLRCO2175 120V

82-CLRCO2175 220V

70-2175DWR 120V

85-2275DWRWS 120V

71-2115R 120V

86-2275DWRWS 220V

72-2115WC 120V

87-2275ZWC 120V

73-2115R 220V

88-2275ZWC 220V

74-2115WC 220V

 

6.Press and release LIGHT key.
7.Wait for display to stop flashing.
8.Remove jumper from board.
9.Unplug unit and wait five seconds.
10.Plug unit back in.

Échelon Service Menu

Enter service menu by holding up arrow and pressing LIGHT three times. Select option 1 to 27 with the up and down arrows. To enter the option, press the LIGHT key. If changing a setting, you must press the LIGHT key again to retain the changed setting.

When entering service mode all other modes are cancelled and the unit will stop operating. When exiting service mode the unit will begin to operate normally, however the four-minute compressor off cycle still applies.

1.Light all LED segments.

This will illuminate all the LEDs on the board to ensure they work properly.

2.Thermistor 1 status—Temperature, E1, or E2.

This will show the pure thermistor reading with no offsets taken into account. When placed in ice water this thermistor should read 32°F in this menu option. Not available on CLR2160.

3.Error log

A list of the errors in the order they occurred will scroll once on the display. Repeat if desired. Once viewed perform option 12 to clear the errors from memory.

4.Defrost information

Displays the number of defrosts that have occurred in the past 24 hours.

5.Compressor runtime based on last cycle

This will show the number of minutes the compressor has run in the prior cycle (or current cycle if the compressor was running when service mode was entered).

6.Defrost length adjustment—up to 99 minutes

The length of the defrost can be adjusted up to 99 minutes long. The other defrost parameters still apply. Lengthening a defrost may cause higher than normal temperatures in the refrigerator section. Not available on CLR2160.

7.Light switch 1 status—0 or 1

This will tell if the light should turn off with the door switch or not. At the “0” reading the light should be off with the door closed and on with the door open. At the “1” reading the light stays on always.

8.Display toggle status—0 or 1

This will tell if the display should turn off with the door switch or not. At the “0” reading the display should be off with the door closed and on with the door open. At the “1” reading the display stays on always.

9.Restore factory defaults

This will restore the default set-point, defrost and offset values.

10.Adjust thermistor 1 offset—10 to +10F

3-32

Section 3 - Service and Repair

This allows calibration of the sensor to cabinet for abnormal operations. By adjusting this number colder you can change the average cabinet temperature to a colder value. Not available on CLR2160.

11.Data download

Along with the separate ESPY software you can download the rolling data file.

12.Clear error log

Perform this operation after checking the errors.

13.Clear download memory

Clears the rolling data file if desired.

14.Model number displayed

Displays the two-digit model number of the specific unit.

15.Adjust thermistor 1 differential

This number should not be adjusted. Not available on

CLR2160.

16.Adjust thermistor 2 offset

This allows calibration of the sensor to cabinet for abnormal operations. By adjusting this number colder you can change the average cabinet temperature to a colder value. Not available on 2175RF.

17.Adjust thermistor 3 offset

This allows calibration of the sensor to cabinet for abnormal operations. By adjusting this number colder you can change the average cabinet temperature to a colder value. Not available on Rs, WCs or CLR2160.

18.Adjust thermistor 4 offset

This allows calibration of the sensor to cabinet for abnormal operations. By adjusting this number colder you can change the average cabinet temperature to a colder value. Not available on Rs or WCs.

19.Thermistor 2 status

This will show the pure thermistor reading with no offsets taken into account. When placed in ice water this thermistor should read 32°F in this menu option. Not available on

2175RF.

20.Thermistor 3 status

This will show the pure thermistor reading with no offsets taken into account. When placed in ice water this thermistor should read 32°F in this menu option. Not available on Rs,

WCs or CLR2160.

21.Thermistor 4 status

This will show the pure thermistor reading with no offsets taken into account. When placed in ice water this thermistor should read 32°F in this menu option. Not available on Rs,

WCs or CLR2160.

22.Automatic toggle through relays switch on and off

See specific unit section for description.

23.Defrost interval adjust. 3 to 24 hours

This will adjust the interval between defrosts from 3 to 24 hours. Adjusting from the factory settings may cause undesired temperature in the refrigerator section.

24.Adjust thermistor 2 set-point. Only available on CO2175F, CO2175DWR, CLR2160 and CLRCO2175.

25.Adjust thermistor 3 set-point. Only available on 2275DWRWS.

26.Adjust thermistor 4 set-point. Only available on 2275DWRWS.

27.Show software revision

This will toggle between main and display board software revision. The main board number will be accompanied by the degree symbol.

Error Codes

E1 Thermistor 1 is open. Not available on CLR2160.

3-33

Section 3 - Service and Repair

E2 Thermistor 1 is shorted. Not available on CLR2160.

E3 Main door or bottom drawer is open longer than 20 minutes.

Not available on CLR2160.

E4 Compressor had 100% runtime between two defrost cycles.

Does not show on display—only in error log.

E5 Thermistor 1 out of range + 10°F for more than 12 hours.

Not available on CLR2160.

E6 Thermistor 1 out of range -10°F for more than 12 hours.

Not available on CLR2160.

E7 Thermistor 2 open or shorted. Not available on 2175RF.

E8 Thermistor 3 open or shorted. Not available on Rs, WCs or CLR2160.

E9 Thermistor 4 open or shorted. Not available on Rs, WCs or CLR2160.

E10 Top drawer is open longer than 20 minutes. Only available on drawer models.

P1 Pump circuit open. Only available on CLR2160 or

CLRCO2175 models with P60 pump.

E11 EE Memory error.

All errors or combinations show up as ER alternating with SP. P1 will alternate with SP or ICE for models 67/68. E3 and E10 both have audible alarms. P1 does not have an audible alarm.

 

Part

PIN 7

PIN 6

PIN 5

PIN 4

PIN 3

PIN 2

PIN 1

Model

C_FAN

LIGHTS

H_H2O

C_PUMP

R_VALVE

BP_VALVE

 

Number

 

 

 

 

 

 

 

 

Relay 1
Relay 2
Relay 3
Relay 4
Relay 5
Relay 6
Relay 7

 

 

 

 

 

 

 

 

 

 

 

2175R

61/75

 

Light

Compressor/

 

 

 

 

 

Fan

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2115R

71/73

 

Light

Compressor/

 

 

 

 

 

Fan

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2115WC

72/74

 

Light

Compressor/

 

 

 

 

 

Fan

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2175WC

62/76

 

Light

Compressor/

 

 

 

 

 

Fan

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2175DWRR

70

 

Light 1

Compressor/

 

Pan Heat

Mull Heat

 

2275DWRR

 

Fan

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CO2175F

64/78

Cond Fan

Light

Compressor

Hot Gas

DRAIN HEAT

IM 1

IM 2

E FAN

Valve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2175RF

65/79

Cond Fan

Light

Compressor

Hot Gas

DRAIN HEAT

 

 

E FAN

Valve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CO2175DWR

66/80

Cond Fan

Light

Compressor

Hot Gas

MULL HEAT

IM 1

IM 2

CO2275DWR

E FAN

Valve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hot Gas

Circulation

 

 

CLR2160

67/81

Cond Fan

 

Compressor

Valve/ Water

 

 

 

Pump

 

 

 

 

 

 

 

Valve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hot Gas

Circulation

 

Ref Bypass

CLRCO2175

68/82

Cond Fan

Light

Compressor

Valve/Water

Ref Valve

Pump

Valve

 

 

 

 

 

Valve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2175BEV

63177

 

Light

Compressor/

 

 

 

 

 

Fan

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2275DWRWS

85186

Cond Fan

Bottom Light

Compressor

Top Light

 

Bottom Valve

Top Valve

 

 

 

 

 

 

 

 

 

2275ZWC

87/88

Cond Fan

Bottom Light

Compressor

Top Light

 

Bottom Valve

Top Valve

 

 

 

 

 

 

 

 

 

3-34

Section 3 - Service and Repair

Model
Thermistor 1
Thermistor 2
Thermistor 3
Thermistor 4
Door Switch 1
Door Switch 2

 

 

 

 

 

 

 

2175R

REF

EVAP

N/A

N/A

Yes

N/A

 

 

 

 

 

 

 

2115R

REF

EVAP

N/A

N/A

Yes

N/A

 

 

 

 

 

 

 

2175WC

REF

EVAP

N/A

N/A

Yes

N/A

 

 

 

 

 

 

 

2115WC

REF

EVAP

N/A

N/A

Yes

N/A

 

 

 

 

 

 

 

2175DWRR

REF

EVAP

Ambient

N/A

Bottom Drawer

Top Drawer

 

 

 

 

 

 

 

CO2175F

REF

IM

FZR

Drain Pan

Yes

N/A

 

 

 

 

 

 

 

2175RF

REF

N/A

FZR

Drain Pan

Yes

N/A

 

 

 

 

 

 

 

CO2175DWR

REF

IM

FZR

Drain Pan

Bottom Drawer

Top Drawer

 

 

 

 

 

 

 

CLR2160

N/A

IB

N/A

CON

N/A

P60

 

 

 

 

 

 

 

CLRCO2175

REF

IB

EVAP

CON

Yes

P60

 

 

 

 

 

 

 

2175BEV

REF

EVAP

N/A

N/A

Yes

N/A

 

 

 

 

 

 

 

2275DWRWS

Top

Bottom

Top Evap

Bottom Evap

Bottom Drawer

Top Drawer

 

 

 

 

 

 

 

2275ZWC

Top

Bottom

Top Evap

Bottom Evap

Yes

N/A

 

 

 

 

 

 

 

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