Jackson ConserverGW Installation Manual

Conserver GW

Conserver GW-30

Conserver GW-30RU

SERVICE MANUAL

Visit Jackson MSC on the Internet at:

www.jacksonmsc.com

August 11, 1999 P/N 7610-002-00-66

MANUFACTURERS WARRANTY

ONE YEAR LIMITED PARTS & LABOR WARRANTY

ALL NEW JACKSON DISHWASHERS ARE WARRANTED TO THE ORIGINAL PURCHASER TO BE FREE FROM DEFECTS IN MATERIAL OR WORKMANSHIP, UNDER NORMAL USE AND OPERATION FOR A PERIOD OF (1) ONE YEAR FROM THE DATE OF PURCHASE, BUT IN NO EVENT TO EXCEED (18) EIGHTEEN MONTHS FROM THE

DATE OF SHIPMENT FROM THE FACTORY.

Jackson MSC agrees under this warranty to repair or replace , at its discretion, any original part which fails under normal use due to faulty material or workmanship during the warranty period, providing the equipment has been unaltered, and has been properly installed, maintained and operated in accordance with the applicable factory instruction manual furnished with the machine and the failure is reported to the authorized service agency within the warranty period. This includes the use of factory specified genuine replacement parts, purchased directly from a Jackson authorized parts distributor or service agency. Use of generic replacement parts may create a hazard and void warranty certification.

The labor to repair or replace such failed part will be paid by Jackson MSC, within the continental United States, Hawaii and Canada, dur ing the warranty period provided a Jackson MSC authorized service agency, or those having prior authorization from the factory, performs the service. Any repair work by persons other than a Jackson MSC authorized service agency is the sole responsibility of the customer. Labor coverage is limited to regular hourly rates, overtime premiums and emergency service charges will not be paid by Jackson MSC.

Accessory components not installed by the factory carry a (1) one year parts warranty only. Accessory components such as table limit switches, pressure regulators, pre rinse units, etc. that are shipped with the unit and installed at the site are included. Labor to repair or replace these components is not covered by Jackson MSC.

This warranty is void if failure is a direct result from shipping, handling, fire, water, accident, misuse, acts of god, attempted repair by unau thorized persons, improper installation, if serial number has been removed or altered, or if unit is used for purpose other than it was originally intended.

TRAVEL LIMITATIONS Jackson MSC limits warranty travel time to (2) two hours and mileage to (100) one hundred miles. Jackson MSC will not pay for travel

time and mileage that exceeds this, or any fees such as those for air or boat travel without prior authorization. WARRANTY REGISTRATION CARD The warranty registration card supplied with the machine must be returned to Jackson MSC within 30 days to validate the warranty. REPLACEMENT PARTS WARRANTY Jackson replacement parts are warranted for a period of 90 days from the date of installation or 180 days from the date of shipment from

the factory, which ever occurs first. PRODUCT CHANGES AND UPDATES Jackson MSC reserves the right to make changes in design and specification of any equipment as engineering or necessity requires. THIS IS THE ENTIRE AND ONLY WARRANTY OF JACKSON MSC. JACKSON’S LIABILITY ON ANY CLAIM OF ANY KIND, INCLUD-

ING NEGLIGENCE, WITH RESPECT TO THE GOODS OR SERVICES COVERED HEREUNDER, SHALL IN NO CASE EXCEED THE PRICE OF THE GOODS OR SERVICES OR PART THEREOF WHICH GIVES RISE TO THE CLAIM.

THERE ARE NO WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING FOR FITNESS OR MERCHANTABILITY, THAT ARE NOT SET FORTH HEREIN, OR THAT EXTEND BEYOND THE DURATION HEREOF. UNDER NO CIRCUMSTANCES WILL JACKSON MSC BE LIABLE FOR ANY LOSS OR DAMAGE, DIRECT OR CONSEQUENTIAL, OR FOR THE DAMAGES IN THE NATURE OF PENALTIES, ARISING OUT OF THE USE OR INABILITY TO USE ANY OF ITS PRODUCTS.

ITEMS NOT COVERED This warranty does not cover adjustments to timer cams or thermostats, cleaning wash arms or strainers, or replacement of wear items

such as curtains, squeeze tubes, drain balls, door guides, or gaskets beyond 30 days from installation of unit. Also not covered are condi tions caused by the use of incorrect (non commercial) grade detergents, excessive supply water temperature or pressure, or hard water conditions.

TABLE OF CONTENTS

GENERAL PAGE

Specifications............................................................................................... 1

Data Plate Details........................................................................................ 2

General Notes.............................................................................................. 3

INSTALLATION

Machine Nomenclature................................................................................ 4

Unpacking/Inspection................................................................................... 4

Concealed/Missing Parts............................................................................. 5

Installation Instructions................................................................................ 5

Chemical Dispensing Equipment................................................................. 8

Detergent Control......................................................................................... 9

Installation Checklist..................................................................................... 10

OPERATING THE CONSERVER GW-30

Sequence of Operation................................................................................ 11

Operating Instructions.................................................................................. 13

DRAWINGS

Dimensions.................................................................................................. 14

Conserver GW-30 Schematic...................................................................... 15

JACKSON MAINTENANCE & REPAIR CENTER NETWORK ............................. 16

IMPORTANT INFORMATION DATA SHEET......................................................... 18

SPECIFICATIONS

CONSERVER GW

PERFORMANCE/CAPABILITIES

GLASSES PER HOUR 1200

OPERATING CYCLE (SECONDS)

TOTAL CYCLE TIME 120

TANK CAPACITY (GALLONS) 3.0

WASH PUMP CAPACITY

GALLONS PER MINUTE 55

TEMPERATURES

WASH---°F (MINIMUM) 130 RINSE ---°F 75

CONSERVER GW-30/CONSERVER GW-30RU

PERFORMANCE/CAPABILITIES

GLASSES PER HOUR 1800

OPERATING CYCLE (SECONDS)

TOTAL CYCLE TIME 120

TANK CAPACITY (GALLONS) 4.14

WASH PUMP CAPACITY

GALLONS PER MINUTE 55

TEMPERATURES

WASH---°F (MINIMUM) 130

ELECTRICAL REQUIREMENTS

WASH PUMP MOTOR HORSEPOWER 3/4 VOLTS PHASE AMPS 208 1 19.4 230 1 18.0

WATER REQUIREMENTS

INLET TEMPERATURE 130°F GALLONS PER HOUR 10.0 WATER LINE SIZE I.P.S. (Minimum) 1/2” DRAIN LINE SIZE I.P.S. (Minimum) 2” FLOW PRESSURE P.S.I. (Optimum) 20

FRAME DIMENSIONS

WIDTH 25 1/4” DEPTH 25 1/4”

RINSE ---°F 75

ELECTRICAL REQUIREMENTS

WASH PUMP MOTOR HORSEPOWER 3/4 VOLTS PHASE AMPS

208 1 19.4 230 1 18.0

WATER REQUIREMENTS

INLET TEMPERATURE 130°F GALLONS PER HOUR 10.0 WATER LINE SIZE I.P.S. (Minimum) 1/2” DRAIN LINE SIZE I.P.S. (Minimum) 2” FLOW PRESSURE P.S.I. (Optimum) 20

FRAME DIMENSIONS

WIDTH 30 5/16”

HEIGHT 39”

DEPTH 30 1/2” HEIGHT 39”

DETAIL OF A TYPICAL GLASSWASHER DATA PLATE

MANUFACTURER’S LOGO

MODEL DESIGNATION (I.E. CONSERVER GW-30)

MINIMUM PARAMETERS SEE NOTE #1

NSF LOGO SEE NOTE #2

MANUFACTURER’S ADDRESS INFORMATION

C/US UL LOGO SEE NOTE #3

CSA LOGO SEE NOTE #4

GENERAL

Before connecting, operating or adjusting this dishmachine, please read this manual carefully to familiarize yourself with your unit and its proper operation.

This manual contains important operating, safety and maintenance information on your dishmachine. You must follow the instructions given in the manual to ensure that your warranty remains in effect.

Notes Concerning Glasswasher Data Plates:

1) Minimum parameters must be met in order for this dish machine to function at its intended level of operation and efficiency. Different machines from different manufacturers have different minimum requirements. Follow those details found on the data plate of your machine, do not use the parameters listed on the example for this manual. If you are unsure, contact your nearest authorized Jackson service representative. Failure to ensure that the machine meets the minimum parameters as expressed on its individual data plate may result in sub-standard performance.

2) The NSF logo on the data plate indicates that this machine has been inspected, reviewed, tested, and approved under NSF Standard 3 by NSF International Inc., formerly the National Sanitation Foundation. For more information concerning the NSF mark, write to: NSF International Inc., 789 Dixboro Road, Ann Arbor, MI., 48105.

3) This symbol indicates that this product is Listed by Underwriter’s Laboratories Inc. Representative samples of this product have been evaluated by UL and meet the applicable U.S. and Canadian safety standards. For more information concerning this mark, write to: Underwriter's Laboratories Inc., 333 Pfingsten Road, Northbrook, IL., 60062-2096.

4) The CSA logo on the data plate indicates that this machine has been certified by Canadian Standards Association Inc. as having met the applicable Canadian safety standards. For more information concerning this mark, write to: CSA Inc., 178 Rexdale Blvd., Rexdale (Toronto), Ontario, Canada, M9W 1R3.

INSTALLATION INSTRUCTIONS

NOTE: Before any connections are made, visually check the entire machine for any possible ship -

ping damage. If any damage is found, proceed to “CONCEALED DAMAGE OR MISSING PARTS”.

UNPACKING THE DISHWASHER

STEPS: 1. Remove all protective packing material from machine.

2. Place machine in its operating location and remove skid.

CAUTION: ENSURE WEIGHT OF MACHINE IS EVENLY DISTRIBUTED WHEN

REMOVING FROM SKID INTO POSITION.

3. Adjust all four (4) adjustable bullet (or flanged) feet so contact is made to floor.

CONCEALED DAMAGE OR MISSING PARTS

IMPORTANT: FOR YOUR PROTECTION, PLEASE READ AND OBSERVE THE FOLLOWING: This dishwasher has been thoroughly inspected and carefully packed before leaving our warehouse. Concealed loss or damage means loss or damage which does not become apparent until the dish-

washer has been unpacked. The contents may be damaged in transit due to rough handling even though the carton may not show external damage.

If it is found that the shipment has concealed damage, PLEASE DO NOT RETURN IT TO JACKSON, but notify the carrier (within 48 hours) asking them to send their agent to fill out an inspection report. Save the cartons so he may inspect them and be sure to note in the report any black marks, creases, tears, crushed corners or any other marks indicating rough handling. Also, notify the JACKSON dealer immediately.

If it is discovered that there are missing parts such as: strainers, rinse assembly, owner’s manual or racks, please notify JACKSON immediately.

Prior to Installation, verify that the electrical service agrees with the specifications on the machine data plate located on the right side and to the front of the machine. Refer to the data plate for machine operating requirements, machine voltage, total amperage load and serial number.

For proper operation, the dishmachine should be leveled from side to side and from front to back. Using a level placed on the flat area at top of unit, adjust leveling feet up or down.

NOTE: The dishwasher must be positioned and leveled before making any connections to

the unit.

PLUMBING

NOTE: ALL CONNECTIONS MUST COMPLY WITH ALL APPLICABLE LOCAL, STATE AND NATIONAL PLUMBING CODES.

The plumber is responsible that the water lines are THOROUGHLY FLUSHED BEFORE connecting it to any manual or solenoid valve. It is necessary to remove all foreign matter such as chips (resulting from cutting or threading pipes), pipe joint compound or, if soldered fittings are used, bits of solder or cuttings from the lines. This debris, if not removed, may lodge in the valves and render them inoperative.

Any valves fouled by foreign matter, and any expenses resulting from this fouling, are not the responsibility of the manufacturer.

DRAIN LINE CONNECTION

All glasswashers have a gravity drain. Ensure that this unit is installed in accordance with all applicable codes. If a grease trap is required by code, it should have a flow capacity of 5 gallons per minute.

WATER SUPPLY CONNECTION

Cold water supply must have a capacity of 180 gallons per hour at 20 PSI flow pressure to the glasswasher. Hot water supply must be a minimum of 130 degrees F. with a capacity of 10 gallons per hour at 20-25 PSI flow pressure. Incoming hot and cold water service connection (supplied by customer) must be a 1/2” pipe size minimum with shut off valve.

Install the water supply line (1/2” pipe size minimum) to the dishmachine using copper pipe. It is recommended that a water shut-off valve be installed in each water line between the main supply and machine to allow access for service.

In areas where the water pressure fluctuates or is greater than the recommended pressure a water pressure regulator valve must be installed. This item should be located before the solenoids and after the shut-off valve.

Do not confuse Static Pressure with Flow Pressure. Static Pressure is the line pressure with no flow. All valves and services are closed. Flow Pressure is the pressure in the fill line when the fill valve is open and the machine is in the fill (hot)/rinse (cold) cycle.

It is recommended a shock absorber (not supplied) be installed in the incoming water line. This prevents line hammer (hydraulic shock), induced by the solenoid valve as it operates, from causing damage to the equipment.

ELECTRICAL

WARNING: Electrical and grounding connections must comply with applicable portions of the National Electrical Code ANSI / NFPA 70 (latest edition) and/or other electrical codes.

WARNING: Disconnect electrical power supply and place a tag or lock at the disconnect

ELECTRICAL POWER CONNECTION

1. Refer to glasswasher electrical data decal located on the right side of the door, for machine voltage, amperage load and serial number.

2. Remove electrical box cover by removing two screws at the bottom corners and lift up and off. Let cover rest against plumbing assembly.

3. Install conduit from rear of machine to hole in rear of electrical box below terminal block and ground lug.

4. Route power wires, L1, L2 and Ground to terminal block and lug.

5. Install power wires, L1, L2 and Ground to appropriate terminals marked L1, L2 at the terminal block. Install ground wire into grounding lug provided. NOTE: It is suggested that “DE-OX” or similar antioxidation agent be used on all incoming connections.

WARNING: INSURE ALL WIRING CONNECTIONS TO TERMINAL BLOCK AND

GROUND LUG ARE PROPERLY TIGHTENED AND TORQUED ACCORDINGLY.

6. Apply power to glasswasher. WARNING: CHECK INCOMING POWER AT TERMINAL

BLOCK FOR PROPER VOLTAGE PER MACHINE’S ELECTRICAL DATA DECAL.

7. Replace electrical box cover, turn off power to machine and at service breaker. Mark

breaker for glasswasher and advise proper personnel.

CHEMICAL DISPENSING EQUIPMENT

TO READY CHEMICAL

The glasswasher machine is supplied with Detergent, Rinse Additive and Santizer dispensing peripumps. Locate the open ends of the chemical tubes with the tube stiffeners and place each one in the appropriate container.

A. -Red Tubing = Detergent B.- Blue Tubing = Rinse Aid C.- WhiteTubing = Sanitizer.

NOTE: IF USING IODIPHOR AS BOTH A RINSE AID AND SANITIZER, PLACE BOTH TUBE STIFFENERS INTO THE CONTAINER.

PRIMING PERI-PUMPS

Peristaltic pumps need priming when the machine is first installed or if for some reason the chemical lines have been removed and air is allowed to enter.

CAUTION: Water must be in the sump and wash tank prior to the dispensing of chemicals. Sanitizer in concentration is caustic and may cause damage without dilution.

1. Verify that the proper chemical tube stiffener inlet is in the proper container.

2. Use the Toggle Switches on the right side of Control Box to prime each pump.

3. To prime the pumps hold the switch in the momentary position until chemical can be observed entering the sump.

4. Detergent is dispensed proportionally during the wash fill. The amount of detergent

may need to be increased or decreased depending on water quality and type of detergent. It is adjusted by turning potentiometer on the speed control board clockwise to increase, counter- clockwise to decrease.

5. Rinse additive is dispensed proportionally into the final rinse. The amount of rinse aide may need to be adjusted depending on water hardness and results. It is adjusted by turning potentiometer on the speed control board clockwise to increase, counterclockwise to decrease.

6. Sanitizer either chlorine or iodine is dispensed proportionally into the final rinse. The amount of sanitizer may need to be adjusted depending on concentration and the type of sanitizer used. It is adjusted by turning potentiometer on the speed control board clockwise to increase, counter-clockwise to decrease.

DETERGENT CONTROL

Using detergent in the proper amount can become, in time, a source of substantial savings. In some cases, controlling detergent use can depend on a number of variables in the warewashing cycle. Of course, a qualified water treatment specialist can tell you what is needed for maximum efficiency from your detergent, but you should know some basics so you’ll understand what he is talking about.

1. The amount of detergent needed is related in one way to water hardness. Water hardness is the amount of dissolved calcium and magnesium in the supply. The greater the amount of dis solved solids the harder the water. Hard water does not allow the detergent to act as it should in the washing cycle, and requires more detergent to do the job. Soft water actually enhances the effect of the detergent and you can use less to do the job and will also eliminate scaling and line build-up, a major problem with hard water.

2. It is important to understand water hardness because of the problems it causes. You may, for instance, be adding rinse agents to reduce water spotting, when the problem may be hard water. Minerals in hard water are left on glassware and dishes after water evaporates, which may be the cause of the water spots.

3. Remember, treated water may be an advantage for your warewashing system and a disadvantage in other areas. For instance, coffee made with soft water may have an acid or bitter flavor; so magnetically treat the water for your warewashing system to give better results and use less detergent.

4. Once your water problems are solved, make sure that your dishmachine operators keep the detergent dispenser full and in operating order at all times.

In addition to the points outlined, other factors about the detergent are important too. Menu items, for instance, call for an extra-powerful detergent. Extra-hard water may require a different type of detergent.

Also, remember that more detergent won’t do a better job of cleaning--in fact it may do worse. Too much soap can build up just like hard water scale, so always use the recommended amount.

DAILY OPERATION

TO FILL GLASSWASHER WITH WATER

1. Remove wash tank strainer and place overflow stopper into fitting at the bottom of the wash tank.

2. Open incoming water shut-off valves on cold and hot water lines.

3. Place the power switch to the “FILL” position, machine will fill and shut off by itself.

4. Check water level, should be near top of the overflow stopper.

5. Replace wash strainer.

TO RUN THE CONSERVER GW/CONSERVER GW-30 GLASSWASHER

1. After filling with water, turn the power switch to the “ON” position, the rack will automatical

ly being to rotate.

2. Place glasses on the rack.

3. When the glasses have completed the cycle, the paddle switch will be activated, shutting

the unit down.

4. Remove the clean glasses.

5. The rack will begin to rotate again.

TO RUN THE CONSERVER GW-30RU GLASSWASHER

1. After filling with water, turn the power switch to the “ON” position.

2. Place glasses on the rack, dirty side down.

3. Turn the start knob to the “ON” position. The Conserver GW-30RU will now run.

4. As ware comes out on the rinse side, you may remove it from the rack. The rack will

remain in motion for 7-1/2 minutes.

5. Turn the start knob again to restart the unit.

SHUTDOWN AND CLEANING OF THE GLASSWASHER

1. Ensure that all ware placed on the rack is able to complete the cycle and is cleaned prior

to shutting the power switch to “OFF”. Shut off the water supply to the unit.

2. Remove the drain boards, rack cylinder and rack. Clean and allow to dry before rein

stalling into the machine.

3. Remove the sump and drain tank strainers. Clean completely and allow to dry before rein

stalling into the machine.

4. Remove the stand pipe by grasping by the HANDLE and removing from the drain tank.

Clean and allow to dry before reinstalling into the machine. CAUTION: Water in the drain tank may be hot, allow the water to cool down and always remove the stand pipe through the use of the handle. Never place your hand in the water within the drain tank.

5. Remove the curtains and spray down using a mild soap and rinse with clean water. Allow

to dry completely before reinstalling into the machine.

6. Remove the rack wrap from inside the tub. Clean and allow to dry completely vefore rein

stalling into the machine.

7. Remove the wash and rinse arms. Inspect them for clogged or obstructed nozzles.

8. Wipe out the inside of the glasswasher tub, removing any and all debris.

9. Reinstall all components previously removed after they have been allowed to dry.

INSTALLATION CHECKLIST

CHECK OFF THE FOLLOWING ITEMS AS THEY ARE COMPLETED BEFORE PROCEEDING TO OPERATION OF DISHWASHER.

Has dishmachine been checked for concealed damage? Is dishmachine properly ventilated? Has dishmachine been properly leveled? Is the drain plumbing installed with air gap? Service voltage correct to data decal? Machine properly grounded? Machine circuit breaker sized correctly? Machine circuit breaker marked for dishwasher? Hot water supply flushed for debris? Hot water supply at 130 F. minimum? Hot water supply at 20 P.S.I. flowing pressure? A water pressure regulator is needed? Are both the cold and hot water supply line 1/2 inch minimum? Has machine voltage been checked at L1 and L2 to ensure a high/wild leg is not connected to either L1 or L2? (Voltage exceeding 250 VAC to ground could indicate a high leg.) Are the chemical tubes installed in the proper supply container ? Have the peri-pumps been primed ? Is the sanitizing peri-pump been adjusted to inject 50 parts per million chlorine solution or 12 parts per million of Iodiphor into the final rinse line ? Does the drain plumbing slope correctly to the floor drain?

SEQUENCE OF OPERATION - CONSERVER GW/GW-30

REFER TO ELECTRICAL DIAGRAM FOR FUNCTION AND REFERENCE DESIGNATIONS.

1. All removable parts have been re-installed into Glasswasher and it is ready to operate.

2. Power switch (S1) is turned to the “Fill” position. A. Hot water valve (HWV) is energized filling tank.

3. Tank is filled to operating level. A. Top (FS1) and bottom (FS2) float switches close. B. Wash tank fill relay (R2) is energized C. Wash tank fill relay N.O. holding contact closes. D. Wash tank fill relay N.O. contact closes energizing wash heater relay (R1). E. Wash heater relay N.O. contacts close energizing the tank heater (H1). F. Wash tank fill relay N.C. contact opens de-energizing hot water valve (HWV)

The Glasswasher is now ready for operation.

4. Power switch (S1) is turned to the “ON” position. A. Conveyor drive motor (M1) is energized. B. Wash pump motor (M2) is energized. C. Cold water valve (CWV) is energized. D. Power is supplied to speed control (SC) for the peri pump (DM, RM, & SM) operation.

The Glasswasher will continue to operate until either a glass trips the conveyor limit switch (S2) or

the power switch (S1) is turned to the “OFF” position.

5. Glasses trip the conveyor limit switch (S2). A. Conveyor drive motor (M1) is de-energized. B. Wash pump motor (M2) is de-energized. C. Cold water valve (CWV) is de-energized. D. The unit will not run until the glass(es) are removed from the unload side of the unit.

Once this is done steps 4A, 4B & 4C will start and more glasses can be placed in the unit for washing.

The wash tank heater (H1) has two (2) methods of protection to prevent damage to the heater.

6. Bottom float switch (FS2) opens due to low water. A. Wash tank fill relay (R2) is de-energized. B. Wash tank fill relay N.O. holding contact opens. C. Wash heater relay N.O. contacts open de- energizing the tank heater (H1).

6. High limit thermostat (TS1) opens due to sheath temperature exceeding preset limit. A. Heat contactor (R1) is de-energized. B. Wash heater relay N.O. contacts open de-energizing the tank heater (H1). C. Proper water temperature will not be maintained for cleaning glasses.

TROUBLESHOOTING SECTION (CONSERVER GW/GW-30)

Branch circuit breaker tripped or fuse

upper and lower floats are working. If

Symptom

WARNING: Inspection, testing and repair of electrical equipment should only be performed by a qualified service technician. Many of the tests require that the unit have power to it and live electrical components be exposed. USE EXTREME CAUTION WHEN TESTING THE MACHINE.

Possible Cause Action

Dish machine will not run, no voltage at wash relay terminals L1 and T1.

Electrical power not installed to machine, service (main) power disconnect off.

is blown.

Ensure electrical wiring is ran to machine and service (main) disconnect is on.

Reset or replace as required. Have an electrician check machine amp draw if problem keeps occuring.

Machine cycles continuously.

Machine will not fill, other functions work.

Loose or broken connection to dish machine.

Limit switch actuator is loose or has fallen off.

Faulty limit switch. Replace switch.

No water supply to machine. Ensure that water is hooked up

Tighten, replace or repair as required.

Reassembly/bend metal lever if necessary.

properly to machine and that it is turned on.

Faulty solenoid valve diaphragm or coil.

Faulty float switch. Ohm out the switch to ensure that

Replace diaphragm and clean out valve. Measure continuity on coil, if there is none, replace the coil.

not, check float wiring to see if it is correct; if so, replace float.

TROUBLESHOOTING SECTION (CONSERVER GW/GW-30)

upper and lower floats are working. If

Loose wire connection to microswitch

Machine fills continuously, stops when

Symptom

Possible Cause Action

Machine fills continuously even with no power to the dish machine.

Solenoid valve jammed/stuck in the open position.

Check diaphragm and coil, replace as required.

the unit is turned off.

Wash motor does not run, other functions work.

Faulty float switch. Ohm out the switch to ensure that

not, check float wiring to see if it is correct; if so, replace float.

Tighten wires.

or relay.

Faulty pump motor. Replace pump motor.

Mechanical binding in the pump. If motor has correct incoming

voltage, and the overload is tripping, repair or replace the pump.

TROUBLESHOOTING SECTION (CONSERVER GW/GW-30)

Symptom

Wash motor does not run; other functions work.

Wash motor runs continuously.

Possible Cause Action

High or low voltage problem. Check voltage at motor and at power

terminal block. Ensure it meets the electrical voltage specifiactions for the dish machine.

Wash relay welded closed. Turn machine off. If wash relay does

not release, replace the contactor.

Low water pressure.

Water level is too low. Ensure that incoming water line

pressure meets the requirements on dish machine data plate.

Wash arms clogged. Remove wash arms and clean.

Obstruction in pump housing. Disassemble and clear.

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