Groen Vortex VRC-3E, Vortex VRC-6E Service Manual

Atmospheric Connectionless

Steamers

SERVICE MANUAL

Models

VRC-3E • VRC-6E

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SECTION 1

INTRODUCTION

Table of Contents

Page

1.1 THE GROEN SERVICE CONCEPT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

1.2 GROEN CERTIFIED SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

1.3 WARRANTY AND NON-WARRANTY REPAIRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

1.4 SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

1.5 GLOSSARY OF TERMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

1.6 TOOLS AND SUPPLIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

1.6.1 Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

1.6.2 Recommended Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

1.6.3 Helpful Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

1.6.4 Recommended Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

1.7 HOW TO USE THIS MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

1.7.1 Technical Bulletins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

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INTRODUCTION

1.1 The Groen Service Concept

Since 1907 Groen has been in the business of designing and
manufacturing the finest commercial appliances for the food
service industry. Chefs, cooks and kitchen support personnel
have come to depend upon the quality of construction and
the reliability of operation.

Groen, in turn, depends upon our service centers and their field
service personnel to keep the equipment in top operating condi­tion. In order to do this, our designs are made with service and
reliability in mind.

Once the Groen equipment is sold, manufactured, delivered and
installed, our reputation is clearly in your hands. As part of our
team, we value your efforts and input to our product design.

We will do all we can to make your job of keeping the equip­ment in perfect working order as easy as we can. Together, we
will keep our customers satisfied.

1.2 Groen Certified Service

The Vortex Connectionless Steamer has been carefully designed
to provide many years of efficient and reliable service. Part of the
quality program is Groen Certified Service.This includes:

• Groen certifies that all equipment delivered to our customers
has been inspected and tested for compliance with the
specifications.

• Groen certifies that all parts required for service and
maintenance will be readily available.

• Groen certifies that this manual will be updated by means of
periodic service bulletins to provide the most up-to-date
information for field maintenance and service personnel.

1.3 Warranty & Non-Warranty Repair

Groen Warranty provisions are clearly presented in the
customer’s Operator Manual.

Certain procedures for the cleaning and/or adjustment
of the Vortex Connectionless Steamer are presented in this man­ual for reference, but not warranty related.

This non-warranty symbol is used throughout the
manual to tell you which items and activities are
NOT covered by the equipment warranty.

1.4 Safety

The Groen Vortex Connectionless Steamer has been designed
from the start with safety in mind. This includes safety to the
operating and maintenance personnel, safety to the facility in
which the equipment is installed and safety to the equipment
itself.

The steamer has been designed to the highest industry standards
and has been certified by the National Sanitation Foundation
Testing Laboratory (NSF) and the Underwriters Laboratory (UL)
to assure strict compliance.

The steamer contains several devices, which are specifically used
to prevent unsafe conditions. If they are disconnected, make sure
they are reinstalled properly and tested before the steamer is
operated.

The safety precautions in this manual are in accordance with
ANSI 535 Standard. Three different signal words alert you to a
hazardous situation:

DANGER,WARNING,AND CAUTION

DANGER:

The signal word DANGER indicates that a

hazardous situation is about to happen and, if not avoided,
will result in death or serious injury.

• Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.

• When you open the steamer door, be very careful to avoid
escaping steam. Steam can cause burns.

• After removing the fan baffle partition, do not put your
hands or other object into the cooking cavity until the fan
comes to a complete stop. Rotating fan blades can cause
severe injury!

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INTRODUCTION

WARNING: The signal word WARNING tells you that a
possibly hazardous situation is about to take place which, if not
avoided, could cause death or serious injury.

• Always turn off the steamer power before removing
and partitions or panels.

• Disconnect the steamer from the power source before
performing and internal service work.

CAUTION: The signal word CAUTION warns you of a
hazardous situation which, if not avoided, may result in minor
or moderate injury.

• Steamer may be hot. Take precautions to prevent any contact
with hot surfaces.

• Be sure all interior partitions have been installed before
operating the steamer.

• All steamer operators and service personnel should be
familiar with correct and safe operating procedures.

• Be sure steamer drain is not blocked as this could result in
improper steamer operations.

Two other signal words, not directly related to personal safety,
are also used in this manual:

NOTICE and IMPORTANT.

NOTICE

is used to alert you to hazards that may result in

component and/or equipment damage.

IMPORTANT is used to highlight an operating or maintenance
tip or suggestion.

1.5 Glossary of Terms

The following abbreviations and terms are used in this manual:

BTU British Thermal Unit
GPM Gallons Per Minute
LED Lighting Emitting Diode
MM Millimeter
NEC National Electric Code
N.P.T. National Pipe Thread
NSF National Sanitation Foundation
PSI Pounds per Square Inch (Pressure)
U.L. Underwriter’s Laboratory, Inc.

1.6 Tools and Supplies

This Section identifies the tools, instruments and supplies which
will be required and useful in the inspection, repair and testing
of the equipment described in this manual.

Most likely many of these tools and supplies are already in your
tool kits and are used in everyday maintenance. Make sure to
use only the specified sealants, compounds and dressings.

CAUTION: Care should be taken in using the correct tool as
indicated. Using the wrong tool may inflict damage to the part
being removed, installed and/or adjusted. Make sure that the
calibrations on instruments are periodically checked for accuracy.

1.6.1 Required Tools

• Screw Drivers: Flat Blade No. 1 and No. 2

• Phillips No. 1 and No. 2

• Socket Wrenches: 1/4” through 7/8” (Magnetic)

• Nutdrivers (metric and inches)

• Open Ended Wrenches: 1/4” through 7/8”

• Pipe Wrenches: 6” and 8” size

• Allen Wrenches: 1/16” through 1/4”

• Slip Joint Pliers: ChannelLock or Equivalent

• Wire Crimpers

1.6.2 Recommended Instruments

• Digital Multimeter: Fluke Model 77

1.6.3 Helpful Hardware

• Extension Mirror

• Screw Starter

• Level: 18” Model

• Fuse Puller

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INTRODUCTION

1.6.4 Recommended Supplies

• Pipe Thread Compound: Brand: LACO PipeTite Stik
No. 11176 or equivalent

• Motor Sealant Grease: Bel-Ray

• 2” Aluminum Duct Tape

• Removable Thread Locker:

Locktite Type 242 (Door)
Locktite Type 222 (Exterior)

• Clear Silicone Sealant:
Dow Coming Type 732

• Silicone Heat Sink Compound:
Non-Fluid Oil Corp., Chemplex 1381

• High Temperature Anti-Seize and Lubricating Compound
Bostix NEVER SEEZ NSBT-16

1.7 How To Use This Manual

Read this manual completely before attempting any disassembly
or repairs.

Please note the similarities and differences between the various
models described in the manual.

Before making repairs, you should have knowledge of the
steamer operation as described in the Operations Section of this
manual, and a good understanding of service techniques, as
presented by the Groen Service School.

This service manual should be taken with you on all service calls.
Use the correct tools in accordance with the procedures shown
and use only Groen Certified Replacement Parts when performing
steamer repairs.

1.7.1 Technical Bulletins

Technical bulletins are issued by Groen to provide additional and
specific technical information to this manual. The technical
Bulletin Section of this manual should be used to file all of the
Technical Bulletins sent to you from the factory.

When you receive a Technical Bulletin, insert the bulletin in the
Technical Bulletin Section of this manual, and write a note in the
margin of the page in this manual which is appropriate to the
subject covered by the bulletin.

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SECTION 2

OPERATION

Table of Contents

Page

2.1 CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

2.2 OPERATING PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

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2.1 Controls

Operator controls are on the front right of the unit.

The VRC-3E and VRC-6E control panels have the following touch
pads and indicator lights:

• The ON/OFF touch pad gets the Vortex™ ready for use,

or shuts it off.

• The HOLD indicator light shows that the cavity is at holding

temperature.

• The TIMING indicator light stays on when the timer is running.

• The low water probe signals the ADD H20 indicator light to

illuminate when it’s time to add water.

• The open and closed position of the drain valve allows the

unit to be filled with water or drained.This is also used to
manually reset the unit.

• If fitted with an optional water fill drain kit, the high water

probe will automatically control the water level.

• The HI TEMP indicator light comes on when the bottom of

the water reservoir becomes too hot.The unit will
automatically shut off, and cannot be turned on again until
the water reservoir cools down.

• The HI TEMP light will remain illuminated until the controls

are turned on and the unit temperature is low enough to
restart. Then reset the manual reset latch as indicated on the
bottom label.

• When power has been interrupted to the Vortex or the HI

TEMP light has come on, the RESET light will illuminate. The
drain handle will need to be momentarily opened or closed
to extinguish light.

The timer is used in three ways:

1. In the HOLD position the steam generator stays at a low boil
or “holding” temperature. Factory set at 180°F.

2. When a cook time is set, the timing light will illuminate.
The unit steams until the timer runs down to DONE.At that
time steaming stops, the DONE light illuminates and a
beeper sounds.

3. When the timer is turned to the ON position, the unit
steams continuously.The green ON light will stay illuminated.

OPERATION

2.2 Operating Procedure

NOTE: When the unit is first installed, or anytime incoming

power is interrupted, the RESET light will illuminate. Momentarily
turn the drain handle to open then back to close to reset the
unit and extinguish the RESET light.

1. With the cooking chamber water reservoir “empty” press
the ON/OFF touch pad. The ADD H20 light will illuminate
when the door is opened. Pour water into the reservoir
through the door.When the water level comes up to the
hi probe the reservoir is full and 3 beeps will sound. Close
door.The fan and contactor will turn on after 15 seconds.

2. Set the time knob to the ON position. The contactor can be
heard cycling to pulse energy into the heating elements.The
unit will be ready in about 20 minutes.

3. Load food into pans in uniform layers. Pans should be filled
to about the same levels, and should not be mounded.

4. Open the door and slide the pans onto the supports. If you
will only be steaming one pan, put it in the middle position.
Some foods will cause foam. When cooking foods that
foam, such as shrimp, put an empty solid 2” deep pan in
the bottom slot of the pan racks.

5. Close the door and take one of the following steps:

• If you want to steam the food for a certain length of time,
set the timer for that period. The timer will automatically run
the steamer for the set time and then turn it off. A beeper
will sound. Steam productions stops. The red DONE light will
illuminate.

• If you want to steam continuously, turn the timer to the
manual ON position. The green ON light will illuminate.
The unit will continue steaming at a temperature of 203° F
or higher.

• If you want to maintain food at holding temperature turn
the timer to the “HOLD” position. The hold light will not
illuminate if the temperature is above 180 degrees. Open
door to cool.

WARNING

When you open the door,

stay away from the steam

coming out of the unit.

the steam can cause burns.

6. To remove pans from cavity, open the door. Remove the
pans from the steamer, using hot pads or oven mitts to
protect your hands from the hot pans.

7. To shut off the unit, press the ON/OFF touch pad.

8. To drain the remaining water in the water reservoir, move
the drain handle to the OPEN position.The drain pan will
not hold all of the water in the reservoir.Allow water to cool
before draining. Pull drain pan slowly from the unit to avoid
sloshing.

WARNING

Do not empty until water is cool.

Empty drain pan. Pan will not hold

all water from the reservoir.

Do not over fill drain pan.

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OPERATION

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SECTION 3

INSTALLATION, CLEANING
AND TESTING

Table of Contents

Page

3.1 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.2 INSTALLATION CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

3.3 CLEANING PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

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INSTALLING, CLEANING AND TESTING

WARNING

GROUNDING INSTRUCTIONS

This appliance must be connected

to a grounded metallic, permanent

wiring system, or an equipment

grounding conductor must be run

with the circuit conductors and

connected to the equipment

grounding terminal on the station.

3.1 Installation and Start-up

CAUTION

DO NOT INSTALL THE UNIT WITHIN

2 INCHES OF A HEAT SOURCE

(SUCH AS A BRAISING PAN, DEEP FAT

FRYER, CHARBROILER, OR KETTLE).

Electrical Supply Connection – Observe all local, national, or
other applicable codes.

Three phrase models of the Vortex® Connectionless Steamer are
supplied with a cord set ready to be connected to a power
supply. See the chart below for the correct matching receptacle
(not supplied with the unit).

Single phase models are designed to be directly connected (hard
wired) to the electrical supply.Allow sufficient loop in the flexible
conduit to facilitate inspection, servicing, and cleaning.

Branch Circuit Protection

Each Steamer, including individual units of stacked models,
should have its own branch circuit protection and ground wire.
Current and power demands for each unit are as shown below.

Field Wiring Table

Use copper wire only – insulation rating 90°C

Voltage Phase Rated Current

60 hz only Demand (amps)

VRC-3E VRC-6E

208 3 25 34
240 3 22 29
480 3 11 25
208 1 44 58
240 1 38 50

Plug & Receptacle Chart

Three Phase Only

Volts Phase Plug Receptacle

9 KW 12 KW 9 KW 12 KW
208 3 15-50P 15-50P 15-50R 15-50R
240 3 15-30P 15-50P 15-30R 15-50R
480 3 L16-20P CS8165C L16-20R CS8169

Hubbel or Hubbel or

Equivalent Equivalent

3

INSTALLING, CLEANING AND TESTING

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Water Connections(s)

No water connection is needed.The water will be poured directly
into the water cavity reservoir.Avoid the use of any chemically
treated water, specifically filtered water.Instructions for connect­ing the optional auto-fill drain kit are included with the kit.Also,
in the Assembly/Disassembly section of the manual.

Drain Connection

The Vortex® Connectionless Steamer should be manually
drained to the bottom containment pan supplied by the factory.
If the unit is connected to a drain, do not connect more than
two units to one drain line or pressure from one unit will effect
the second unit.

Steam Vent Assembly Instructions

Remove steam diverter assembly from literature bag which can
be found inside unit. Slide loose end as shown over unit steam
outlet, tighten worm gear clamp with flat head screw driver.
Be sure steam outlet is pointing in the upward position.
(Shown below)

Stacking Units Instructions

Remove drain containment pan from the bottom of unit(s).
Unscrew to remove adjustable legs from base of Vortex unit(s).
Unfasten nuts and bolts on stand platform(s). Place Vortex
unit(s) on stand platform. Align the (4) leg holes with the holes
in the platform. Secure Vortex units(s) to stand platform(s) using
bolts and washers provided with stand, see drawing below.

For double stack units only:

By loosening the left screw and removing the right screw provided,
mount steam exhaust bracket assembly to the back panel of the
top Vortex unit as shown in detail “B” of Figure 1 on the next
page.Attach the steam exhaust hose from the bottom Vortex
unit’s steam outlet tube to the top Vortex unit’s steam exhaust
bracket assembly using hose clamps provided as shown in figure
2 on the next page. (Note: Steam exhaust hose may need to be
cut to fit.)

FIGURE 1

FIGURE 2

DETAIL B

SCALE 1 : 1

DOUBLE

STACK

STAND P/N

142363

HOSE

CLAMPS

P/N 073259

HOSE

CLAMPS

P/N 073259

DOUBLE STACK

STEAM

EXHAUST HOSE

DOUBLE STACK

STEAM EXHAUST

BRACKET
ASSEMBLY
P/N 143243

10-32 SCREW

P/N 004173

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3.2 Installation Checklist

General

_____ Remove all packaging.

_____ Make sure there is a minimum of 2 inches of

free space around the steamer.

_____ Make sure the steamer is level or pitched

slightly to the rear.

_____ Check that the fan is clean and clear of

foreign material.

Electrical Checks

_____ Make sure the steamer is properly grounded.

_____ Verify that the electrical connections conform

to all local codes and the NEC requirements.

_____ Make sure the power supply branch circuit

conforms to the specifications indicated on
the steamer nameplate.

Steamer Door Check

_____ Make sure the door gasket is making good

contact with the cavity frame.

_____ Check that the operators are leaving the door open

when the steamer is shut down overnight or longer.

3.3 Cleaning

To keep your VRC-3E or VRC-6E Connectionless Steamer in
proper working condition, use the following procedure to clean
the unit.

A. Suggested Tools

• Mild detergent

• Stainless steel exterior cleaner such as Zepper“

• Cloth or sponge

• Plastic wood or a brush with soft bristles

• Spray bottle

• Measuring cup

• Nylon pad

• Towels

• Plastic disposable gloves

B. Procedure

Exterior Cleaning

a. Prepare a warm solution of the mild detergent as

instructed by the supplier.Wet a cloth with this solution
and wring it out. Use the moist cloth to clean the outside
of the unit. Do not allow freely running liquid to touch
the controls, the control panel, any electrical part, or on
the side or rear panels.

b. To remove material which may be stuck to the unit use

plastic wool, a fiber brush, or a plastic or rubber scraper
with a detergent solution.

c. Stainless steel surfaces may be polished with a recognized

stainless steel cleaner such as “Zepper“.

Interior Cleaning

Clean the unit daily or as residue builds upon the bottom of
the oven cavity.
a. Press ON/OFF to turn the steamer off. Open the door.
b. Drain the water from the unit into the drain pan and

allow the unit to cool before cleaning. (Note: If the cavity
is full of water, the drain pan will not hold the entire
amount and must be emptied more than once.)

c. After the unit has cooled, remove pan and pan racks

from the cavity.

d. Use a mild detergent to wipe down the steamer cavity, the

probes on the inside back panel wall, and the pan racks.
e. Rinse the unit to remove detergent.
f. Attach pan racks. Unit is ready for use.

INSTALLING, CLEANING AND TESTING

WARNING

Keep water and cleaning solutions

out of controls and electrical

components. Never hose or steam

clean any part of the unit.

Even when the unit has been

shut off, don’t put hands or tools

into the cooking chamber until

the fan has stopped turning.

Don’t operate the unit unless the

removable partition has been put

back in its proper location.

Do not use any acidic cleanser,

delimer/descaler or chemical

products to clean the unit.

IMPORTANT

Do not use any metal material (such as metal sponges)

or metal implements (such as a spoon, scraper or

wire brush) that might scratch any stainless steel surface.

Scratches make the surface hard to clean and provide

places for bacteria to grow. Do not use steel wool,

which may leave particles imbedded in the surface which

could eventually cause corrosion and pitting.

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INSTALLING, CLEANING AND TESTING

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INSTALLING, CLEANING AND TESTING

Notes

4

SECTION 4

TROUBLESHOOTING

Table of Contents

Page

4.1 TROUBLESHOOTING PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.1 - 4.5

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4

TROUBLESHOOTING

4.1 Vortex Troubleshooting Procedure

Each test procedure builds on the prior ones.Always start at the beginning of this procedure, and continue until the results indicate a
malfunction. Do not skip steps.

WARNING: Disconnect electrical power before servicing.

Measure input voltage and com­pare to rating plate.

Check input power to determine
if it is three phase or single phase

Open steamer door. Disconnect
then connect electrical power
(circuit breaker or plug)

Input voltage is within 10% of
rated voltage

Steamer wiring matches
incoming power

Reset light illuminates

Wrong model (voltage) installed

Wrong model ordered. Change
wiring at terminal block to
match incoming power.

(Perform Test 1 or 2)
Test 1. 12vdc led (light) on

circuit board is not illuminated

No line voltage

Blown 6 amp fuse F1 or F2

480v unit only-torroid
circuit breaker

480v unit only-torroid
transformer

10 volt transformer T2

Control board

Incorrect wiring

Test 2. 12vdc led (light) on
circuit board is illuminated

Control board

Hi-limit 2 (auto reset)

Incorrect wiring

Hi-limit 1 (auto reset)

Latching relay

Reset light

Incorrect wiring

Notify customer

When converting from three
phase to single phase, do not
exceed amperage of breaker or
power cord/plug

Standard test

Standard test

Reset breaker

Measure 480vac in and
208+/- 10%vac out

Measure 208 or 240vac in
and 12vac +/- 20% out

Substitute to test

Check wiring diagram

Measure from j7-pin 12 to
ground. If 12vdc +/- 20%,
control board is good

Continuity, normally closed

Check per wiring diagram

Hi-temp light will illuminate if
open

Continuity, from terminals
4 to 3, normally closed

Measure across light.
If 12vdc, light is bad

Check per wiring diagram

SETUP EXPECTED RESULTS PROBABLE DEFECT TEST or COMMENTS

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TROUBLESHOOTING

Momentarily rotate drain handle
to reset

Press on\off switch to on

Add water to cover low water
(bottom) probe. Close door

Open door, add water to cover
top probe.

Reset light goes out

24vac led (light) on control board
illuminates

H20 light goes out

Unit beeps 3 times when water
reaches top probe

Reset switch adjustment

Reset switch

Latching relay

Incorrect wiring

Breaker on 24 Volt transformer

24 volt transformer T1

Overtemp shutdown control K1

Control board

Incorrect wiring

Low water probe

Temperature probe

Water level board

Incorrect wiring

High water probe

Control board

Incorrect wiring

Standard test

Measure from 1 to 4.
Normally open. Press switch
closed, measure continuity.

Measure from 1 to ground
while rotating reset handle.
If 12vdc and relay does not ener­gize, relay is bad.

Check per wiring diagram

Reset breaker

Measure 208 or 240vac in and
24vac +/- 20% out

Measure across K1coil terminals
0 to 1. If 12vdc and relay does
not energize, K1 is bad

Substitute to test

Check per wiring diagram

Probe measures open to ground
without water. Short probe wire
to ground to simulate water.

About 550 ohms at room
temperature. 500 +\- 2 ohms
in ice bath.

Red light indicates power to
board. Bypass to test. Disconnect
wire to L1, move wire from NO-2
to NC-2, remove wire from H and
NO-1 and jumper these two
wires together.

Check per wiring diagram

Probe measures open to ground
without water. Short probe wire
to ground simulate water.

Substitute to test

Check per wiring diagram

SETUP EXPECTED RESULTS PROBABLE DEFECT TEST or COMMENTS

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4

TROUBLESHOOTING

Optional water fill kit.
Close door.

Close door and set timer
to 30 minutes

Look for temperature rise on
the dial temperature guage

Water fills to high water probe

Power light illuminates.
After 15 seconds timing light illu­minates and fan operates

Heats to 200 + degrees in
22 +/- 5 minutes

High water probe

Control board

Water fill solenoid valve

Incorrect wiring

If no power light or timing
light, but fan operates;
check door switch

If no power light or timing
light, but fan operates;
check control board

If fan does not operate with
power light and timing light
illuminated, check items below

Start capacitor

Internal thermal protector on
fan motor

Fan Motor

Control board

Incorrect wiring

Hi-limit 2 (auto reset)

Water level board

Contactor K3

Probe measures open to ground
without water. Short probe wire
to ground to simulate water.

Substitute to test

Valve is normally closed.
When water is below High
probe, 24vac is applied to coil
of valve and it opens.
When water reaches high
probe, coil de-energizes.

Check per wiring diagram

Measure from J9 pin 1 to 2.
12vdc with door open, zero (low)
voltage with door closed. If volt­age is not zero, check door
switch, door magnet,
light & timer board, wiring.

Substitute to test

Standard test

Measure black to white motor
leads. 35 +/- 20% ohms

Measure orange to brown motor
leads. 35 +/-20% ohms. Red to
blue 42 +/- 20% ohms

Substitute to test

Check per wiring diagram

Measure for continuity
normally closed

Red light indicates power to
board. Bypass to test. Disconnect
wire to L1, move wire from NO-2
to NC-2, remove wire from H and
NO-1 and jumper these two
wires together.

Verify 24vac across K3 Coil.
Measure amperage through
heater wires and compare to
chart on Page 6.

SETUP EXPECTED RESULTS PROBABLE DEFECT TEST or COMMENTS