Frigidaire GLDB957JB, ADW750EA, GLDB958JB, ADW850EA, GPDB998JC Service Manual

SERVICE MANUAL

24" BUILT-IN DISHWASHERS
ELECTRONIC CONTROL

PRECISION WASH SYSTEM

5995293536

TABLE OF CONTENTS

SAFE SERVICING PRACTICES ...................................................................................... 3

WHAT'S NEW ................................................................................................................... 4

MODEL TECHNICAL SPECIFICATIONS......................................................................... 5

Model Diagram Index ...................................................................................................................................... 5

Electrical ........................................................................................................................................................ 5

Water Supply ................................................................................................................................................. 5

Component Resistance (Ohms) ....................................................................................................................... 5

Temp Assure and Heat Delay Operation ...................................................................................................... 6

CONSTRUCTION AND OPERATION

Water Distribution System ............................................................................................................................ 7

Wash Pump ........................................................................................................................................... 7

Different Types of Precision Wash Motors ............................................................................................. 8

Upper Spray Arm ................................................................................................................................... 9

Lower Spray Arm ................................................................................................................................... 9

Filter ....................................................................................................................................................... 9

Drain Pump ............................................................................................................................................ 9

Drying System .............................................................................................................................................. 10

Lower Vent Housing ............................................................................................................................... 10

Vent Valve.............................................................................................................................................. 10

Vent Actuator ......................................................................................................................................... 10

Blower .................................................................................................................................................... 10

Upper Vent Housing ............................................................................................................................... 10

Dispensing System ....................................................................................................................................... 11

Detergent & Rinse Aid Dispenser ........................................................................................................... 11

Door Latch Assembly ................................................................................................................................... 11

Electronic Control and Thermistor ................................................................................................................ 11

No Heat Dry ........................................................................................................................................... 12

Temp Assure.......................................................................................................................................... 12

Heat Delay ............................................................................................................................................. 12

High Limit Thermostat .................................................................................................................................. 12

Dishwasher Leveling System........................................................................................................................ 12

Temperature Controls With Thermister......................................................................................................... 13

Cycles .................................................................................................................................................... 13

Options .................................................................................................................................................. 13

Dirt Sensor ................................................................................................................................................... 13

Rinse Aid Dispenser ..................................................................................................................................... 14

Bottom View ................................................................................................................................................. 15

DISASSEMBLY

Safety Precautions ....................................................................................................................................... 16

Control Panel ................................................................................................................................................ 16

Electronic Keypad - Slimline & Regular ........................................................................................................ 16

Electronic Keypad - Selectronic .................................................................................................................... 16

Control Board ............................................................................................................................................... 16

Door Panel ................................................................................................................................................... 16

Door Vent Assembly ..................................................................................................................................... 16

Vent Valve .................................................................................................................................................... 17

Page 1

TABLE OF CONTENTS

Vent Blower .................................................................................................................................................. 17

Door Latch Assembly ................................................................................................................................... 17

Detergent / Rinse Aid Dispenser .................................................................................................................. 17

Inner Door Panel .......................................................................................................................................... 17

Door Seal ..................................................................................................................................................... 17

Upper Rack .................................................................................................................................................. 17

Upper Water Tube ........................................................................................................................................ 18

Upper Spray Arm .......................................................................................................................................... 18

Water Distributor .......................................................................................................................................... 18

Kick Plate ..................................................................................................................................................... 18

Heating Element ........................................................................................................................................... 18

Float Switch and Bracket .............................................................................................................................. 19

Water Valve .................................................................................................................................................. 19

Drain Pump .................................................................................................................................................. 19

Lower Spray Arm .......................................................................................................................................... 20

Glass Trap .................................................................................................................................................... 20

Lower Spray Arm Support ............................................................................................................................ 20

Filter ............................................................................................................................................................. 20

Pump Cover ................................................................................................................................................. 20

Pump and Motor Assembly .......................................................................................................................... 20

Motor Mounting Bracket ............................................................................................................................... 21

Motor and Impeller ........................................................................................................................................ 21

Thermistor .................................................................................................................................................... 21

High Limit Thermostat .................................................................................................................................. 21

Indicator Lamps ............................................................................................................................................ 21

TROUBLESHOOTING ...................................................................................................... 22

Troubleshooting Tips .............................................................................................................................. 22

Troubleshooting Diagnostics .................................................................................................................. 24

APPENDIX A - Exploded Views ...................................................................................... A-1

APPENDIX B - Wiring Diagrams & Timer Charts

Frigidaire Models - 154371501 ............................................................................................................... B-1

Amana Models - 154390601 .................................................................................................................. B-2

Page 2

SAFE SERVICING PRACTICES - ALL APPLIANCES

To avoid personal injury and/or property damage, it is important that Safe
Servicing Practices be observed. The following are some limited examples of

safe practices:

1. DO NOT attempt a product repair if you have any doubts as to your ability to
complete it in a safe and satisfactory manner.

2. Before servicing or moving an appliance:

 Remove the power cord from the electrical outlet, trip the circuit breaker to

the OFF position, or remove the fuse.
 Turn off the gas supply.
 Turn off the water supply.

3. Never interfere with the proper operation of any safety device.

4. USE ONLY REPLACEMENT PARTS CATALOGED FOR THIS APPLIANCE.

SUBSTITUTIONS MAY DEFEAT COMPLIANCE WITH SAFETY
STANDARDS SET FOR HOME APPLIANCES.

5. GROUNDING: The standard color coding for safety ground wires is GREEN,
or GREEN with YELLOW STRIPES. Ground leads are not to be used as current
carrying conductors. It is EXTREMELY important that the service technician
reestablish all safety grounds prior to completion of service. Failure to do so
will create a hazard.

6. Prior to returning the product to service, ensure that:

 All electrical connections are correct and secure
 All electrical leads are properly dressed and secured away from sharp

edges, high-temperature components, and moving parts

 All non-insulated electrical terminals, connectors, heaters, etc. are

adequately spaced away from all metal parts and panels

 All safety grounds (both internal and external) are correctly and securely

connected

 All panels are properly and securely reassembled

ATTENTION!!!

This service manual is intended for use by persons having electrical and mechnical
training and a level of knowledge of these subjects generally considered acceptable in the
appliance repair trade. Electrolux Home Products cannot be responsible, nor assume any
liability, for injury or damage of any kind arising from the use of this manual.

© 2001 White Consolidated Industries

Page 3

WHAT'S NEW

√ QUIETER OPERATION - Possible in part because only one spray arm operates at a time. Since only one

spray arm is in motion at a time, a smaller, quieter, motor can be used to recirculate the water.

√ USES LESS WATER - Since only one spray arm is in operation at a time, less water is needed in the sump

than previous dishwashers. (EXAMPLE: 1.2 gal./ fill vs. 2.3 gal./ fill on previous Ultra-Style models.)

√ USES LESS DETERGENT - Because less water is used, less detergent is required. EXAMPLE: 27 ml.

vs. 47 ml. on previous Ultra-Style models.

√ SEPARATE RECIRCULATE AND DRAIN PUMPS - The recirculate pump operates in one direction only.

A smaller, separate pump is used to drain the water from the sump.

√ FULL FLOW FILTRATION - 100% of the water distributed to the spray arms is continually filtered.

√ GLASS TRAP - Removes any particles which are too large to pass through the pump.

√ NEW DETERGENT AND RINSE AID DISPENSER - The detergent dispenser and rinse aid dispenser

are incorporated into a single dispenser that utilizes a single actuator to dispense both products.

√ PTC HEATING ELEMENT - This element is self regulating to provide lower wattages during the dry cycle

than in the wash cycle when it is used to boost the water temperature.

√ VENT VALVE - Closed during water recirculation cycles for quiet operation, but opens during dry cycle

to allow moist air to escape.

√ TEMP ASSURE AND HEAT DELAY THERMISTOR - A single thermistor located beneath the sump

raises the water temperature in the wash and rinse cycles. This is accomplished by the electronic control
stopping the cycle advancement (for a maximum of 10 minutes) until the element has heated the water
to the required temperature.

√ HIGH LIMIT THERMOSTAT - Located on the left rear tub bottom, the high limit thermostat is used to

prevent the tub from overheating in the event of a component failure.

√ FAN ASSISTED DRYING - Some models are fan assisted to speed up the drying process. Although this

concept is not new, the type of fan (squirrel cage) and location (door) are.

√ TURBIDITY SENSOR - Checks to see how dirty water is in the 1st Wash cycle and in the 1st Rinse cycle.

√ RINSE AID DISPENSER - Has a small circuit board which detects when the

on Jet Dry. It will display a "LO" in the display window for

Display Models Only

Rinse Aid Dispenser

.

is low

Page 4

TECHNICAL SPECIFICATIONS

WATER SUPPLY

Suggested Min. Water
Temperature

120° F

Pressure (PSI)
Minimum/Maximum

20/120

Connection (NPT) 3/8"

Water Valve Flow Rate
(GPM)

0.83

Water Fill Time
(± 3 Seconds)

87

Water Volume Per Fill
(Gal.)

1.2

Water Level in Tub

Just to bottom of

element supports

Total Gallons
(normal wash)

6.0

Water Recirculation Rate
(GPM)

12

COMPONENT RESISTANCE - OHMS

PTC Heating Element 9.28

Pump Motor Windings 4.3

Drain Motor Windings 28

Vent Door Actuator 1893

Dispenser Actuator 1928

Water Valve Solenoid 699

Blower Motor 214

For Models: GLDB957JB* ADW750EA*

GLDB958JB* ADW850EA*
GPDB998JC*

* = Color Code

DIAGRAM INDEX

GLDB957JB* B - 1 B - 1

GLDB958JB* B - 1 B - 1

GPDB998JC* B - 1 B - 1

ADW750EA* B - 2 B - 2

ADW850EA* B - 2 B - 2

Rating 120V 60Hz

Separate Circuit 15 Amp

Total Amps (Load
Rated)

Recirculate Motor RPM
Amps
Thermal Cutout Temp.

PTC Heating Element
During Wash Cycle
During Dry Cycle

High Limit Thermostat
opens at

MODEL

NUMBER

CYCLE
CHART

ELECTRICAL

WIRING

DIAGRAM

11.0

3200 ccw

3.4

150° C

900 Watts
700 Watts

200° F

Temp Assure
All cycles except
China/Crystal

Temp Assure
China/Crystal Cycle

Hi-Temp Wash

Hi-Temp Rinse

136° F

Water Temp

127° F

Water Temp

143° F

Water Temp

145° F

Water Temp

Page 5

TEMP ASSURE & HEAT DELAY

OPERATION

WASH CYCLE RINSE CYCLE

OPTIONS SELECTED

High Temp Wash - OFF

High Temp Rinse - OFF

High Temp Wash - OFF

High Temp Rinse - OFF

High Temp Wash - OFF

High Temp Rinse - ON

High Temp Wash - ON

High Temp Rinse - ON

Temp Assure

(*1st potential Delay)

136°F Bypassed 136°F Bypassed

136°F143°F136°F145°F

136°F Bypassed 136°F145°F

136°F143°F136°F145°F

Heat Delay

(*2nd potential delay)

Temp Assure

(*3rd potential Delay)

(*4thd potential delay)

Heat Delay

* Dishwasher will not delay if water is already up to temperature. Maximum delay for each Temp Assure and

Heat Delay interval is 10 minutes.
(Temperatures listed are actual operating temperatures of thermistor.)

Also note that:

 Temp Assure water temperature for the China/Crystal cycle is only 127°F.
 When High Temp Wash is selected, the potential delay will occur near the end of the 3rd wash cycle.
 High Temp Rinse causes a potential delay near the end of the 2nd Rinse cycle (Hi-Temp Rinse is not

used in the China/Crystal cycle) .

Page 6

CONSTRUCTION & OPERATION

WATER DISTRIBUTION SYSTEM

The water distribution system consists of an upper and
lower spray arm, upper (spray) arm delivery tube, filter,
soil director, pump, sump, and check ball. The system
is designed to operate only one spray arm at a time.
During the first wash and first and second rinses, only
the lower spray arm operates. In the second wash, third
and fourth rinses the spray arms alternate about every
90 seconds.

This alternating of the spray arms is achieved with a
check ball located on a ramp between two outlets of the
pump. There is an outlet to the bottom spray arm and an
outlet to the upper arm delivery tube. In the normal
position the ball is at the bottom of the ramp, in front of
the opening to the upper arm delivery tube.

Not all of the water is blocked however. The opening is
constructed to allow a small amount of water to bypass
the ball and enter the tube, and fills the tube at a rate of
approximately four inches a second. At the same time,
the outlet to the lower spray arm is open, so the lower
spray arm operates. When the pump stops, the pressure
is removed from the ball and the water flows down the
tube, forcing the ball up the ramp and against the outlet
to the lower spray arm. If the pump remains off for more
than 3 seconds, all the water in the tube escapes and
the ball returns to the bottom of the ramp. But, if the
pump is started in less than .6 seconds, the water from
the upper arm delivery tube is still forcing the ball up the
ramp against the outlet to the lower spray arm. The
force of the water from the pump continues to hold the
ball against the outlet to the lower spray arm which
leaves the outlet to the upper arm delivery tube open.
When the ball is in this position only the upper spray arm
operates. This momentary stopping of the pump is
controlled by the control board.

Another unique feature of the water distribution system
is the two cavities of the sump. One cavity provides
filtered water to the pump for recirculation through the
spray arms. The other, called a quiet water cavity,
allows soil to collect in the area of the macerator blade,
where it is held until the drain pump removes it.

When the pump starts, the force of the water pushes the
ball to block the opening to the upper arm delivery tube.

WATER DISTRIBUTION COMPONENTS

Wash Pump

The recirculation (wash) pump has three (3) functional
parts, a 1/12th HP drive motor, impeller, and macerator
blade. The pump circulates water at the rate of 12
gallons per minute. This pump is used only during the
wash cycle, a separate pump is used during the drain
cycle. The wash pump is to be replaced as a complete
assembly.

Page 7

Different Types of Precision Wash Motors

Emerson Motor with Aluminum Motor Mount

ASKO Motor - Phase II Emerson Motor with Phase Mounting Bracket

ASKO Motor - Phase III

Page 8

Upper Spray Arm

The upper spray arm hangs from a bracket that is
snapped to the bottom of the upper rack. The water is
supplied to the arm with a nozzle and funnel
arrangement. The nozzle is located at the top of the tub
and the funnel is located directly below it and directs
water into the arm. All the spray jets but three (3) face
up.

Lower Spray Arm

The lower spray arm rotates on the lower spray arm
support. It has two functions, washing the dishes and
cleaning the filter. The jets located on the top of the arm
clean the dishes and propel the arm. The three (3) jets
located on the bottom of the arm are aimed to flush the
soil on the filter toward the glass trap and soil director.

Drain Pump

The drain pump has only one function, to remove water
from the dishwasher. The drain pump is driven by a 1/

th

HP drive motor. It consists of three (3) functional

25
parts; a pump cover, impeller and armature, and stator.

The quiet cavity and impeller cavity are connected by a
hose underneath the sump. This connection between
the two cavities allows both cavities to be drained.

Filter

The filter consists of two parts, an inner basket
constructed of fine polyester mesh, and an outer filter of
stainless steel.

DRYING SYSTEM

At the start of the dry cycle, a vent opens at the upper
left hand corner of the door allowing the warm moist air
to escape out the front of the control panel. Dry room air
is drawn into the dishwasher tub through an opening
across the bottom of the door. If the heated dry cycle is
selected, the heating element raises the temperature of
the air to increase the evaporation rate and the flow rate
of the air through the dishwasher. These models
incorporate the use of a small motor and centrifugal
blower to accelerate the movement of air through the
dishwasher.

Page 9

The door vent actuator opens the vent only during the
dry cycle. It is closed during all other cycles to minimize
heat loss and to prevent noise from being transmitted
into the kitchen.

DRYING SYSTEM COMPONENTS

Lower Vent Housing

The lower vent housing is located between the inner
door assembly and control housing and is mounted to
the inner door panel. The lower vent housing surrounds
an opening in the inner door panel. This opening is
covered with a moveable vent valve.

Vent Valve

When the timer enters the dry cycle, 120 VAC is applied
to the wax motor. The wax motor is made up of a heating
disk, fluid chamber and piston. When voltage is applied
to the heating disk, it heats the fluid in the chamber
causing the fluid to expand, driving the piston out. The
piston forces the slide out and causes the vent valve to
open.

The vent actuator is replaced as a complete assembly,
no replacement parts are available.

Blower

Electronic control models use a small motor and
centrifugal blower assembly that is mounted to the top
section of the lower vent housing.

The vent valve is a rectangular rubber covered pad
slightly larger than the opening. The vent valve is
attached to the vent actuator which is electrically
operated.

Vent Actuator

The actuator is made up of a rod, slide, wax motor and
spring. The valve is attached to one end of the rod and
the slide is inserted in the other. The spring pushes in
on the slide forcing the rod to push the valve against the
opening in the door panel.

Upper Vent

Housing

Upper Vent Housing

The upper vent housing is screwed to the blower and
directs the air from the blower to the outlet in the
console.

Blower Motor

Actuator
(on rear)

Lower Vent Housing

Vent Valve

Page 10

DISPENSING SYSTEM

DOOR LATCH ASSEMBLY

Detergent & Rinse Aid Dispenser

The detergent and rinse aid dispenser consists of two
dispensers combined in one housing that are controlled
with one wax motor actuator. The first time the actuator
is energized in a cycle it dispenses detergent. The
second time the actuator is energized it dispenses rinse
aid. Using a pointer under the fill cap, the amount of
rinse aid dispensed may be adjusted from one (1) to
four (4) ml. The dispenser is replaced as a complete
assembly, no replacement parts are available. If a more
detailed explanation on how the dispenser operates is
desired; continue.

The dishwasher has two detergent cups, one is the
dispenser that has a spring loaded cover with a manual
or automatic release latch. The other cup is formed in
the inner door panel without a cover. Prior to starting
the dishwasher, detergent is added to the dispenser
cup and the cover is latched closed. The open cup is
also filled but empties into the tub as soon as the door
is lifted to the upright position.

The detergent in the covered cup is held until the start
of the second wash. The timer then supplies 120 VAC
to the dispenser actuator for one minute. It takes about
30 seconds for the actuator to move the pivot arm far
enough to release the cover. When power is applied to
the actuator, the actuator plunger pushes the end of the
pivot arm down. The pivot arm rotates on the shaft of
the detergent dispenser door latch. As the shaft rotates,
it turns the door latch releasing the spring loaded cover.

The pivot arm is spring loaded so that when power is
removed it returns to the normal (horizontal) position.
The other end of the pivot arm has a pin that moves in
a slot(s) of the rinse injector pump arm. The rinse
injector pump arm is slotted in such a way that when
the actuator pushes the lever down the first time to
release the detergent cup cover, the pin moves up but
does not raise the rinse injector pump arm. When the
timer removes power from the actuator, the spring
forces the rinse injector pump arm end of the pivot arm
down. The compound slot in the rinse injector pump
arm directs the pivot arm pin down the front of the rinse
injector pump arm and under a shorter slot in the center
of the arm. When the timer reaches the middle of the
final rinse cycle, it again applies 120 VAC to the
dispenser actuator which forces the pivot arm up at the
rinse injector end. As the pin engages the shorter slot it
raises the rinse injector pump arm which operates the
pump. When the power is removed, the pivot arm
spring forces the pin to the bottom of the slot. A leaf
spring pushes the rinse injector pump arm to the left so
that the pin returns to the original starting position.

The door latch assembly has two functions, one is to
lock the door in a closed position and the other is to
operate the door switches.

The door latch assembly consists of the door handle,
door handle bracket, door catch, door switch bracket
and door switches. The assembly is secured to the
inner door panel with two locator pins and two screws.
The handle is hidden by, and accessed through the
control panel.

When the door is closed, the door strike, mounted on
the tub, forces the spring loaded catch to rotate back
until the bottom of the catch clears the door handle
bracket. At that time the spring forces the door handle
bracket to rotate. The bar on the top of the door handle
rotates back under the door catch locking the door. The
plunger on the bottom of the bracket rotates forward
closing the door switches.

The door is released by lifting up on the door handle.
When the handle is lifted up, the door handle bracket
rotates in at the top, allowing the door catch to rotate
open, and out at the bottom to open the door switches.
When the catch is rotated to the open position, it holds
the door handle bracket away from the door switches.

Page 11

ELECTRONIC CONTROL AND THERMISTOR

There are three styles of electronic controls used in the
Precision Wash System dishwashers. There is a 9 pad
key, 10 pad key and a 12 pad key control. The 12 pad
key is the only one that has the display window for the
time display or the Code display which are:

LO low liquid in the Rinse Aid Dispenser
PF power failure has occurred
HO water heating display
CL close and latch the door
01-09 hours for delay start

The electronic control dishwashers use one thermistor
(instead of two thermostats) to control water temperature
during the various cycles. The thermistor is located
underneath the sump and is controlled by impulses
from the control board.

No Heat Dry

This selection allows the consumer to turn off the
heating element for the drying cycle. If not selected the
element will automatically come on for the dry cycle.

Temp Assure

"Temp Assure" is an automatic water heating function
that ensures that the water in the tub is heated to 140°F
(except for the China/Crystal cycle where the water
temperature 125°F in the main wash cycle and reaches

130°F in the final rinse cycle). "Temp Assure" occurs
near the end of the third wash cycle and near the end of
the second rinse cycle. When the thermistor senses
that the water is cooler than 140°F, it will stat in this no
more than 10 minutes, then the control will advance on
into the cycle whether or not it reached 140°F. This is
designed to keep the dishwasher from running for too
long of a period trying to raise thewater temperature.

Heat Delay

"Heat Delay" is an optional function that must be selected
by the consumer (bypassed for China/Crystal cycle).
"Heat Delay" occurs near the end of the third wash cycle
and near the end of the second rinse cycle right after the
Temp Assure process. "Heat Delay" is controlled by the
Hi-Temp Wash and/or Hi-Temp Rinse touchpads. When
a consumer selects either one or both of these options,
the thermistor stops the cycle from continuing until
either the water reaches 144°F or until 10 minutes have
passed. After 10 minutes the cycle automatically starts
again. This allows the water to be heated and does not
stop the cycle indefinitely.

HIGH LIMIT THERMOSTAT

Located on the left rear tub bottom, the high limit
thermostat is used to prevent the tub from overheating
in the event of a component failure. The thermostat will
open at 200°F.

DISHWASHER LEVELING SYSTEM

The dishwasher is leveled with fout leveling legs and they are screwed into the bottom of the support frame.
There is a 3/16" hex head on top of the leg leveler to help make adjusting of the leg leveler easier by using a
socket on it.

Page 12

TEMPERATURE CONTROLS WITH THERMISTER

The Thermister controls the temperature inside the
dishwasher (Solid State only, depending on what cycle
is selected and what other options are selected).
Functional description are as follows:

CYCLES

 Pots & Pans - This is a cycle for heavily soiled

dishes. The control automatically selects an
assured water temperature of 135°F in the main
wash cycle and 140°F in the final rinse. This is
when there are no options selected.

 Normal Wash - This cycle is used for normally

soiled dishes. The control automatically selects an
assured water temperature of 135°F in the main
wash cycle and 140°F in the final rinse. This is
when there are no options selected.

 China/Crystal - This cycle is used for delicate

china or crystal. The control automatically selects
an assured water temperature of 125°F in the
main wash cycle and 130°F in the final rinse. The
following options are not available for this cycle:
HI-TEMP WASH, HI-TEMP RINSE, SANI RINSE,
or SOIL SENSING OPTIONS.

 Both Racks - A cycle used for lightly soiled

dishes. The control automatically selects an
assured water temperature of 135°F in the main
wash cycle and 140°F in the final rinse. All options
plus SOIL SENSING are available

 Upper Rack - A cycle used for small loads of

glassware or cups, etc. The control automatically
selects an assured water temperature of 135°F in
the final rinse cycle. The following options are not
available for this cycle: HI-TEMP WASH, HI-TEMP
RINSE, SANI RINSE, or SOIL SENSING
OPTIONS.

OPTIONS

 HI-TEMP WASH - Selects both the wash

temperature delay which is 140°F and the rinse
temperature delay which is 145°F. The maximum
delay time is 10 minutes per delay.

 HI-TEMP RINSE - Selects only the rinse temperature

delay which is 145°F. The maximum delay time is
10 minutes for this delay.

 SANI-RINSE - Selects both the wash temperature

delay which is 145°F and the rinse temperature
delay which is 150°F. At the end of the HI-TEMP
RINSE, an additional 10 minutes of rinsing time is
added to ensure sanitation. The heater will be
cycled on and off to maintain the water temperature
at 150°F. The maximum dalay time is 10 minutes for
the wash temperature delay and 20 minutes for the
rinse delay.

DIRT SENSOR

The true name of the sensor is called the Turbidity
Sensor. It is located just in front of the wash impeller on
the sump. The sensor is mounted by two cross point
head mounting screws.There is a locating tab on the
sensor and a knotch on the sump to ensure the sensor
is intalled correctly. The sensor is a device that senses
how dirty the water is. This is done when the customer
loads the dishwasher with dirty dishes, then starts the
unit. The sensor will then sense how dirty the water is.
The DC output voltage of the sensor will be monitored
at the end of the 30 second pause in the first wash and
the first rinse. If a sufficient quantity of soil exists, the
control will add two additional rinses for a total of eight
fills, or 9.6 gallons of water. Should the sensor detect a
light soil condition, the control will subtract two rinses for
a total of four fills, or 4.8 gallons of water. The Normal
cycle can either increase or decrease the time of a wash
cycle. It just depends on how dirty the water is.

 Lower Rack - A cycle used for small loads of pans,

silverware, dishes, etc. The control automatically
selects an assured water temperature of 135°F in
the final rinse cycle. The following options are not
available for this cycle: HI-TEMP WASH, HI-TEMP
RINSE, SANI RINSE, or SOIL SENSING
OPTIONS.

 Rinse & Hold - A cycle for rinsing dishes that will

be washed later. No options can be used except
Delay Start.

 Controls Locked - The

disables the keyboard but does not interfere with any
cycle in progress. The controls may be locked or
unlocked by depressing NO-HEAT DRY / COOL DRY
on the touch pad for 5 seconds when the door is latched.
The Controls Locked LED is illuminated only when the
control is locked.

Controls Locked

feature

To check to see if the sensor is working properly, start
the dishwasher in the
sensor light to light up on the control panel. If no light is
illuminated, look at the plug on the sensor to ensure that
it is plugged in. After the dishwasher has completed a
wash and rinse cycle, and has filled up again with clean
water, look to make sure the time clock on the control
panel is counting down. If not, turn the power off to the
dishwasher to make it go into the power failure mode.
Then, press and hold the upper rack and start cancel
pad. If any numbers come on in the display area, this
means the sensor is good. If there is no display of
numbers or just blank, then the sensor is bad.

If there is a leak underneath the sensor, check to see if
the sensor was installed correctly. There is a locking tab
on the sensor which lines up with a notch on the sump.
If the sensor is mounted the opposite way, this can

Page 13

Normal

cycle, then look for a

cause a leak down onto the floor. Another leak possibility
is an missing or damaged "O" ring that fits over top of
the covered sensing light of the sensor.

The sensor will not function in the following cycles:

 Light Wash (Upper Rack)
 Light Wash (Lower Rack)
 China / Crystal.

WARNING: WHEN UNPLUGGING THE JUMPER
WIRE THAT YOU USED, MAKE SURE YOU TURN
OFF THE POWER SUPPLY FIRST, UNHOOK
THE TWO WIRES TO THE JUMPER, THEN
RECONNECT WIRE TO CIRCUIT BOARD.
RESTORE POWER.

RINSE AID DISPENSER

The Rinse Aid Dispenser has a circuit board located on
the dispenser to send a signal to the control board
display. When the rinse aid is low with Jet Dry, the board
will send a signal to the display window and will display
a "LO" which indicates that the customer needs to fill the
rinse aid dispenser back up with Jet Dry solution.
NOTE: The "LO" is only shown on the display during the
time the "Clean" light is on.

One way to check to see if you have a bad board when
there is no "LO" displaying is to turn off the power supply
(breaker) and pull off the two wires going to the small
circuit board and use a jumper wire to jump from one
wire to the other. Then, turn the power supply back on.
"PF" should start flashing in the display window. Now,
latch the door and the flashing "PF" should go out. This
is called the "Idle Mode". To go into the "Service Test
Mode", simultaneously press the HI-TEMP WASH &
START/CANCEL pads for 1.5 to 2 seconds. It should
display a 07 in the Display Window. Keep pushing the
START/CANCEL pad until it gets down to the clean
cycle. Here is where the LO should appear in the
display window. When this does come on,this indicates
that there is a defect in the small circuit board on the
detergent assembly. If ther is not a display of "LO", then
this indicates that there is a control board defect, or a
loose or broken wire. Check wires first for continuity. If
ok, replace Control Board.

Page 14

Thermistor

Hi-Limit Thermostat

Drain Pump & Motor

Bottom View

Page 15

DISASSEMBLY

SAFETY PRECAUTIONS

Always turn off the electric power supply before
servicing any electrical component, making ohmmeter
checks, or making any parts replacement. Refer to safe
servicing procedures at the front of this service manual
before servicing the dishwasher.

All voltage checks should be made with a voltmeter
having a full scale range of 130 volts or higher.

After service is completed, be sure all safety grounding
circuits are complete, all electrical connections are

secure, and all access panels are in place.

CONTROL PANEL

1. Disconnect dishwasher from electrical supply.

2. Remove six Phillips screws from top of inner door
panel.

ELECTRONIC KEYPAD - SLIMLINE & REGULAR

1. Disconnect dishwasher from electrical supply.

2. Remove control panel. See "Control Panel."

3. Remove four screws securing protective cover
around control board.

4. Disconnect keypad ribbon from control board.

5. Peal overlay and keypad away from front of control
panel.

6. When replacing overlay and keypad, use denatured
alcohol to get old glue residue off of control panel
face.

7. Remove protective paper from back of new keypad
exposing side with glue.

8. Line up new keypad to corners of control panel and
lay down making sure its straight.

9. Connect new ribbon to control circuit board.

5. Remove cycle selector knob from face of control
panel. See "Selector Switch."

6. Peal overlay and keypad away from front of
control panel.

7. When replacing keypad, use denatured alcohol
to get old glue residue off of control panel face.

8. Remove protective paper from back of new
keypad exposing side with glue.

9. Line up new keypad to corners of control panel
and lay down making sure it's straight.

10. Reconnect ribbons to control circuit board.

11. Replace cycle selector knob. See "Selector
Knob."

CONTROL BOARD - All Electronic Controls

1. Disconnect dishwasher from electrical supply.

2. Remove control panel. See "Control Panel."

3. Remove four screws securing protective cover
around control board.

4. Disconnect keypad ribbons from control board.

5. Disconnect four wire terminals (PT01 - PT04)
from control board.

6. Disconnect large white wiring harness pin
connector from control board.

7. For Selectronic models, remove pin connector
from cycle selector switch.

8. Remove six screws securing control board to
back of control panel.

DOOR PANEL

1. Disconnect dishwasher from electrical supply.

2. The outer door panel is held to the inner door
panel with two locking tabs and two screws.
Loosen the two lower screws securing the
control panel.

3. Remove two screws securing door panel to door
(located at lower section of inner door panel).

4. Slide door panel down and outward to remove.

ELECTRONIC KEYPAD - SELECTRONIC

1. Disconnect dishwasher from electrical supply.

2. Remove control panel. See "Control Panel."

3. Remove four screws securing protective cover
around control board.

4. Disconnect keypad ribbons from control board.

DOOR VENT ASSEMBLY

1. Disconnect dishwasher from electrical supply.

2. Remove outer door panel.

3. Remove control panel.

4. Disconnect wiring to the blower motor and vent
actuator.

5. Remove four Phillips screws securing vent to
inner door panel.

Page 16

VENT VALVE

DETERGENT / RINSE AID DISPENSER

1. Disconnect dishwasher from electrical supply.

2. Remove outer door panel.

3. Disconnect wiring connections.

4. Remove six Phillips screws and carefully push
dispenser into tub.

1. Disconnect dishwasher from electrical supply.

2. Remove outer door panel.

3. Remove control panel.

4. Remove door vent assembly.

5. Slide vent valve upward to remove from actuator
arm.

VENT BLOWER

1. Remove door vent assembly.

2. Remove two screws securing top vent piece.

3. Remove four screws securing lower vent to
blower motor.

DOOR LATCH ASSEMBLY

1. Disconnect dishwasher from electrical supply.

2. Remove outer door panel.

3. The door latch is held to the inner door panel
with two screws and two locator pins. Remove
screws and pull to remove.

4. To remove door switches, push plastic bracket
open and rotate bottom of switch up.

INNER DOOR PANEL

1. To replace inner door panel, remove control
panel, door vent, dispenser and latch.

2. Remove two bolts (T-25 TORX®) from each
hinge and lift off.

DOOR SEAL

1. To remove seal, lift one end and pull entire seal
out.

2. To replace or reinstall seal, center white mark at
top of seal recess and press seal in place, going
left and then right from top center. Do not stretch
seal while installing.

UPPER RACK

1. To remove rack, unsnap and remove retainers at
end of metal track. Once retainers are removed,
pull rack straight out.

Page 17

2. Each rack roller is each secured with a T-25
TORX® bolt.

WATER DISTRIBUTOR

1. The water distributor is screwed to top of upper
arm delivery tube. A rubber seal is used on top
side of tub to eliminate leaks.

KICK PLATE

1. To remove kick plate and insulation (some
models) remove two Phillips screws and pull out
on bottom of kick plate.

UPPER WATER TUBE

1. To remove upper water tube, press in on top of
two clips and lift up.

HEATING ELEMENT

1. Disconnect dishwasher from electrical supply.

2. To remove element, disconnect wiring and
remove two element mounting nuts.

3. Lift terminal ends of element into tub and rotate
element sideways, out of retainers.

UPPER SPRAY ARM

1. To remove upper spray arm, unscrew plastic nut
securing it to support.

Page 18

FLOAT SWITCH AND BRACKET

1. Disconnect dishwasher from electrical supply.

2. To remove float switch bracket, remove outer
door panel, kick plate, and wires to float switch.
A single Phillips screw secures bracket to tub.

3. Remove float switch by spreading mounting
clips.

2. Remove outer door panel and kick plate.

3. Remove hoses and wiring to drain pump.

4. Remove two screws securing drain pump
to mounting bracket.

WATER VALVE

1. Disconnect dishwasher from electrical supply.

2. Remove outer door panel, kick plate, and wires.

3. The water valve is secured with two 5/16" hex
screws.

DRAIN PUMP

1. Disconnect dishwasher from electrical supply.

5. The drain pump assembly consists of three
primary parts, (1) stator winding, (2) motor
armature & impeller, and (3) front housing. To
remove front housing, turn housing about 45°
counterclockwise and lift off.

6. To remove stator winding, release plastic
catches and slide stator winding off.

Page 19

LOWER SPRAY ARM

1. To remove lower spray arm, pull out on retaining
clips and lift up.

GLASS TRAP

1. To remove glass trap, lift handle up and raise
trap up and out of sump.

LOWER SPRAY ARM SUPPORT

1. To remove lower spray arm support, remove
spray arm and glass trap, then turn support 90°
clockwise and lift up.

PUMP AND MOTOR ASSEMBLY

1. To remove pump and motor assembly, discon­nect dishwasher from electrical supply. Remove
glass trap, spray arm, spray arm support and
filter.

2. Remove door panel and kick plate.

3. Disconnect upper spray arm hose, drain hose
and motor wiring.

4. Disconnect wiring to thermistor or remove
thermistor mounting bracket screw.

5. The pump and motor assembly is secured in
place using four retainers that rotate easily. Turn
retainers 90° and lift assembly from tub.

FILTER

1. To remove filter, remove glass trap, spray arm
and spray arm support. Lift filter up to remove.

PUMP COVER

1. To remove pump cover, remove glass trap,
spray arm, spray arm support and filter.

2. Remove three T-20 TORX

® screws and lift cover

off.

Page 20

MOTOR MOUNTING BRACKET

1. Disconnect dishwasher from electrical supply.

2. To remove motor mounting bracket, remove
pump and motor assembly.

3. Remove three T-20 TORX

® bolts and slide motor

mounting bracket off end of motor.

Note: When removing or replacing the thermistor,

make sure to apply more thermal mastic to
the face of the thermistor.

Thermistor

MOTOR AND IMPELLER

1. Disconnect dishwasher from electrical supply.

2. To remove motor, remove pump housing, motor
mounting bracket, and pump cover.

3. Place large screwdriver between housing and
impeller and force impeller and motor out of
housing. DO NOT ROCK MOTOR TO
RELEASE. Lubricate with Vaseline® when

reinstalling.

HIGH LIMIT THERMOSTAT (ON TUB BOTTOM)

1. Disconnect dishwasher from electrical supply.

2. To gain access to thermostat, remove outer door
panel and kick plate.

3. Disconnect wires from thermostat and remove
single Phillips screw and retainer.

4. Determine failure causing high limit thermostat to
open before replacing.

THERMISTOR (ON SUMP)

1. Disconnect dishwasher from electrical supply.

2. To gain access to thermistor, remove outer door
panel and kick plate.

3. Disconnect wires from thermistor and remove
single Phillips screw and retainer.

Hi-Limit Thermostat

INDICATOR LAMPS

1. Disconnect dishwasher from electrical supply.

2. To replace indicator lamps please see
instructions for "Electronic Keypad." Use either
the Slimline or Selectronic instructions,
whichever one is applicable.

Page 21

TROUBLESHOOTING TIPS

SYMPTOM

Dishwasher will not operate
when turned on.

Motor hums but will not start or
run.

CHECK THE FOLLOWING

1. Fuse (blown or tripped).

2. 120 VAC supply wiring
connection faulty.

3. Electronic control board
defective.

4. No 12 VAC power to control.

5. Motor (inoperative, check
resistances).

6. Door Switch (open contacts).

7. Door latch not making contact
with door switch.

8. Touch pad circuit defective.

9. No indicator lamps illuminate
when START or OPTIONS are
pressed.

1. Motor (bad bearings or locked
rotor).

2. Motor stuck due to prolonged
non-use.

3. Motor fan blocked.

REMEDY

1. Replace fuse or reset breaker.

2. Repair or replace wire
fasteners at dishwasher
junction box.

3. Replace control board.

4. Check/replace transformer.

5. Replace motor / impeller
assembly.

6. Replace door switch.

7. Replace latch assembly.

8. Replace keypad.

9. Replace keypad.

1. Replace motor.

2. Rotate motor fan or impeller.

3. Check/clear fan area.

Motor trips out on internal
thermal overload protector.

Dishwasher runs but will not
heat.

Detergent cover will not latch or
open.

1. Improper voltage.

2. Seal faces binding.

3. Motor windings shorted.

4. Glass or foreign items in pump.

1. Hi-limit thermostat open.

2. Heater element (open).

3. Electronic control board
defective.

4. Wiring or terminal defective.

1. Excess detergent on lid catch.

2. Latch mechanism defective.

3. Electronic control board
defective.

4. Wiring or terminal defective.

5. Broken spring(s).

6. Defective actuator.

1. Check voltage.

2. Rotate motor fan or impeller, or
replace.

3. Replace motor/pump
assembly.

4. Clean and clear blockage.

1. Replace thermostat.

2. Replace heater element.

3. Replace control board.

4. Repair or replace.

1. Clean catch area.

2. Replace dispenser.

3. Replace control board.

4. Repair or replace.

5. Replace dispenser.

6. Replace actuator.

Page 22

SYMPTOM REMEDY

CHECK THE FOLLOWING

Dishwasher will not pump out.

Dishwasher will not fill with
water.

Dishwasher water siphons out.

1. Drain restricted.

2. Defective drain pump.

3. Air lock in drain hose.

4. Blocked impeller.

5. Open windings.

6. Wiring or terminal defective.

7. Electronic control board
defective.

1. Water supply turned off.

2. Defective water inlet valve.

3. Check fill valve screen for
obstructions.

4. Defective float switch.

5. Electronic control board
defective.

6. Wiring or terminal defective.

7. Float stuck in "UP" position.

1. Drain hose not connected to
side of tub.

2. Drain hose (high) loop too low.

3. Drain line connected to a floor
drain not vented.

1. Clear restrictions.

2. Replace pump.

3. Drain hose must slope upward
to side of tub. Hose must be
attached on side of tub.

4. Check for blockage and clear.

5. Replace windings.

6. Repair or replace.

7. Replace control board.

1. Turn water supply on.

2. Replace water inlet fill valve.

3. Disassemble and clean screen.

4. Repair or replace.

5. Check/replace control board.

6. Repair or replace.

7. Clean float.

1. Reattach drain hose.

2. Repair to proper height.

3. Install air gap at counter top.

Detergent left in dispenser.

1. Detergent allowed to stand too
long in dispenser.

2. Dispenser wet when detergent
was added.

3. Detergent cover held closed or
blocked by large dishes.

4. Improper incoming water
temperature to properly
dissolve detergent.

5. See "Detergent Cover Will Not
Open."

1. Instruct customer/user.

2. Instruct customer/user.

3. Instruct customer/user on
proper loading of dishes.

4. Incoming water temperature
of 120°F is required to properly
dissolve dishwashing
detergent.

Page 23

TROUBLESHOOTING

DIAGNOSTICS

PROBLEM PAGE

Low Water Level ......................................................... 25

Low Water Temperature.............................................. 26

Door Leaks .................................................................. 27

Dishes are Not Clean .................................................. 28

Steam Comes from Vent During Wash Cycle ............. 29

Some Functions of the Control Panel

Will Not Program ......................................................... 30

Dishwasher is Completely Inoperative ........................ 31

Display Will Not Illuminate ........................................... 33

Dishwasher Operates in "Normal Wash" No Matter

What Cycle is Selected (Selectronic Models Only) ..... 34

Dishwasher Overfills.................................................... 36

Dishwasher Will Not Fill............................................... 38

Dishwasher Will Not Drain........................................... 40

Dishwasher Detergent Dispenser Will Not Open ........ 42

Dishes are Not Dry ...................................................... 43

Wash Pump Motor Does Not Run ............................... 45

Page 24

Low Water Level

Possible component failure:

1. Low water pressure

2. Dirty inlet valve screen

Low Water Level

Below 20 psi

Increase water
pressure.

Check water pressure to

dishwasher

Above 20 psi.

Clean water inlet

valve screen.

Page 25

Low Water Temperature

Below 120°F

Raise water

temperature to

dishwasher.

No

Go to flow chart

"Dishes Are Not Dry."

Zero

Defective control

board.

Shorted or open.

Defective thermistor.

What is the incoming water

temperature?

Above 120°F

With the dishwasher operating in

short wash is the heater

heating?

Yes

With the dishwasher operating in
short wash, measure the voltage

across the thermistor.

5 VDC

Remove electrical power &

measure the resistance of the

thermistor.

10000 Ohms

Ask the customer to use

Hi-Temp Wash.

Page 26

Door Leaks

Possible component failure:

1. Door seal

2. Door latch

3. Door hinge

Note: There are no adjustments to the door or latch.

Door Leaks

Remove the door panel,

drop the control panel and

inspect the door latch, door

strike, and door hinge. If

they look good, replace the

door seal.

Page 27

Dishes Are Not Clean

Possible component failure:

1. Low water level (see flow chart "Low Water Level")

2. Spray arms not alternating (Run diagnostic test)

3. Low water temperature

4. Blocked spray arm

5. Bad detergent

6. Hard water















Page 28

Steam Comes From the Vent During Wash Cycle

Possible component failure:

1. Vent valve

2. Vent mechanism

Steam Comes From the Vent

During Wash Cycle

No

Snap the valve back
into place.

Open the control panel and remove
the vent mechanism. Is the valve in

place on the actuator arm?

Yes

Replace the vent
mechanism.

Page 29

Some Functions of the Control Panel Will Not Program

Possible component failure:

1. Control board

2. Touch pad

Some Functions of the Control Panel

Will Not Program

Remove the touch pad ribbon from the board,

clean the ribbon tail, reinstall the ribbon. Check

the dishwasher operation. If the control panel

does not program replace the touch pad. If the

control panel still will not program replace the

control board.

Page 30

Dishwasher is Completely Inoperative

Possible component failure:

1. Power to the dishwasher

2. Transformer

3. Control board

4. Touch pad

5. Line side door switch

6. Wiring between these components

P8

P1 - 3

P1 - 4

P3 - 5

P10

Page 31

Dishwasher is Completely

Inoperative

With the door latched remove and

reapply electrical power to the

dishwasher. Does the HI-TEMP

WASH & NO HEAT DRY LEDs

FLASH?

No

Yes

Go to "Some

Functions Will Not

Program" flow

chart.

12 VAC

Zero

Check power

to dishwasher.

Zero

Defective

transformer.

5 VDC

Measure the voltage drop

between terminals PT01 &

PS04-10 of the control board.

Measure input voltage

to the transformer.

120 VAC

Measure output voltage

from the transformer.

12 VAC

Measure the voltage drop

across the thermistor.

Zero

12 VAC

Zero

Measure the voltage drop

between terminals PS04-2 &

PS04-1 of the control board.

Zero

Remove the touch pad ribbon

from the board, clean the

ribbon tail, reinstall the ribbon.

Check the dishwasher

operation. If the dishwasher

does not operate replace the

control board.

Defective

line door

switch.

Page 32

Defective

control

board.

Open wiring
between the

transformer

& board.

Display Will Not Illuminate

P8

P3 - 5

Possible component failure:

1. Control Board

2. Display

Zero

Defective control

board

Display Will Not Illuminate

Measure the voltage between

the two outside pins of the

display plug.

Page 33

5 VDC

Defective

Display.

Dishwasher Operates in Normal Wash No Matter What Cycle is Selected

P8

P10

P3 - 5

(Selectronic models only)

Possible component failure:

1. Control board

2. Cycle selector control

Page 34

Dishwasher Operates in Normal

Wash No Matter What Cycle is

Selected (Selectronic models only).

Infinity

Defective cycle

selector control.

Defective cycle

selector control.

Infinity

Set the selector to "Pots & Pans." Drop the

control panel, unplug the cycle selector control

from the control board. Measure the resistance

between pins 1 and 3 in the plug.

47,000 Ohms

Measure the resistance between the

black lead and center lead for each

setting.

Readings Pots & Pans 2000 Ohms

Normal 10000 Ohms
Short Wash 20000 Ohms
Rinse & Hold 3000 Ohms

Defective control

board.

Page 35

Dishwasher Overfills

FLOAT

Possible component failure:

1. Control board

2. Inlet valve

3. Blocked drain hose

4. Pinched crossover hose

5. Defective drain pump





SWITCH

WATER

VA LVE

699 OHMS







Page 36

Dishwasher Overfills

Yes

Defective water

inlet valve.

Refer to "Dishwasher

Will Not Drain" flow

Refer to "Dishwasher

Will Not Drain" flow

chart.

chart.

Is it necessary to turn the incoming

water off to stop water from

entering the tub?

No

Cancel and restart a normal

No

No

wash program. Does the water

pump out all but a small amount

in the bottom of the pump cavity?

Yes

Allow the dishwasher to

advance to a fill. Does the

dishwasher over fill?

Yes

Defective control board.

Page 37

Dishwasher Will Not Fill

Possible component failure:

1. Water supply

2. Control board

3. Float switch

4. Inlet valve





FLOAT

SWITCH

WATER

VA LVE

699 OHMS







Page 38

Dishwasher Will Not

Fill

Turn water
supply on.

120 VAC on one

terminal 0 volts on

the other

Defective float

switch.

No

Is the water supply turned

on?

Yes

Remove the door panel and

kick plate. Run the diagnostic

test for a fill and with a
voltmeter measure the voltage
drop between each terminal of

the float switch and neutral.

0 Volts on both

terminals

Defective timer.

120 VAC on

both terminals

Defective

inlet valve.

Page 39

Dishwasher Will Not Drain

DRAIN MOTOR 28 OHMS

Possible component failure:

1. Control board

2. Drain pump

3. Drain pump stator winding

4. Crossover hose

5. Restricted drain hose





P6





Page 40

Dishwasher Will Not Drain

Run the diagnostic test for drain.

Does the drain pump run?

No

Remove the door panel and kick plate.

Remove electrical power and disconnect

the two wires from the drain pump.

Apply electrical power, run the

diagnostic test for drain and measure

the voltage drop between the two wires.

0 Volts

Defective control

board or broken

wire.

Remove electrical power.

Remove the stator winding

from the drain pump motor and

check it with an ohmmeter.

Yes

Check for restricted
drain hose, pinched

crossover hose, or

plugged pump.

120 VAC

Open

Defective

stator

winding

Around 30

ohms

Blocked pump.

Page 41

Detergent Dispenser Does Not Open

Possible component failure:

1. Control board

2. Dispenser





120 VAC

P3-2





Detergent Dispenser Does

Not Open

Remove the door panel. Run the

diagnostic test for dispenser.

Measure the voltage drop across the

terminals of the dispenser actuator.

0 VAC

Defective
dispenser.

Defective control

board or broken

wire.

Page 42

Dishes Are Not Dry

Possible component failure:

1. Heater

2. Hi-limit thermostat

3. Control board

4. Vent mechanism

5. Blower

6. Hot or cool dry switch



8

P5

P3 - 2

P10

Page 43

NOTE: This dishwasher will

not operate properly
unless the incoming
water temperature is
above 120°F.

Dishes Are Not Dry

No

Turn switch
to "ON."

No

Remove the door panel and

kick plate. Check the voltage

drop between the terminals of

the heating element.

0 Volts

Open the control panel. Check

the voltage drop between

terminal PT02 on the control

board and neutral.

Is the heat dry switch on?

Yes

Run diagnostic test for heater,

vent and blower. Does the

heating element heat.

120 Volts

Defective heating

element.

Yes

0 Volts

broken wire.

Yes

Is the vent
valve open.

No

Open the control panel.
Check the voltage drop

between the terminals of

the vent actuator.

Defective

control

board or

120 Volts

Defective

vent actuator.

0 Volts

Defective control
board.

120 Volts

Defective Hi­Limit Thermostat.

No

Defective

blower
motor.

Is the blower

running?

Yes

Check water
temperature.

Page 44

Wash Pump Motor Does Not Run

Possible component failure:

1. Control board

2. Wash pump motor





PUMP MOTOR 4.9 OHMS

P7





Page 45

Wash Pump Motor Does Not

Run

Remove the door panel and kick plate.

Disconnect the electrical plug from the

wash motor. Run the diagnostic test for

the wash motor and measure the voltage

drop between the blue and white wires.

120 VAC

0 Volts

Defective
control board or
broken wire.

Clear

Defective motor.

Remove filter and pump cover. Check for

something blocking or holding the

impeller or macerator blade.

Blocked

Remove blockage.

Page 46

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A - 3

A - 4

A - 5

A - 6

A - 7

A - 8

A - 9

A - 10

A - 11

A - 12

A - 13

A - 14

A - 15

APPENDIX B

SERVICE DATA SHEETS

MODEL SERVICE DATA SHEET # PAGE

GLDB957JB* 154371501 B - 1

GLDB958JB* 154371501 B - 1

GPDB988JC* 154371501 B - 1

ADW750EA* 154390601 B - 2

ADW850EA* 154390601 B - 2

B-1

Cycle Selection Options

LIGHT (UPPER)

NORMAL WASH
LIGHT (BOTH)

CYCLES

POTS & PANS

LIGHT (LOWER)
CHINA/CRYSTAL
RINSE HOLD

CLEAN

DRYING

RINSING

WASHING

SENSING

LED

Color Code

BK....... ...... ....... ..... Bl ack

BK-W...........Black/Wh ite

BU...... ...................... B lue

PK....... .................... .P ink

R...............................Red

R-BK...............Red/Black

R-Y .......... ......Red/Yellow

VIO..... ............ ........V io let

W.... .......................White

W-BK...........White/Bla ck

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----------------------Turbidity sensor is checking the condition of the wash/rinse water.

No sensing for LIGH T WASH (UPPER RACK), LIGHT WASH (LOWER RACK) an d CHIN A/CRYSTAL.

-------------------- --Wash portion of cycle.

-----------------------Rinsing portion of cycle.

------------------------Drying portion of cycle.

-------------------------Shows completion of cycle. Indicator light will switch off when door is opened.

-- HI-TEM P W A SH and NO H EAT D RY/POWER D R Y OFF LED's fla shing indicat es power failure h a s
occurred. Press START/CANCEL pad and reselect desired options and cycle.

-- The STATUS LED's that are lit when the door is opened will flash. Close door.

Operation

PUMP MOTOR

THERM ISTOR

10000 OHMS

@ 25 C

DRAIN MOTOR

28 OHMS

VIO

120VAC

60HZ

MEMBRANE SWITCH

ELECTRONIC

CONTROL

BOARD

*SOME MODELS

P6

P9

*

BU

W

DISPENSER

1928 OHMS

R-YW

P3- 1

W

W

R-BK

*BLOWER

214 OHMS

W

P3- 2

VENT SY STEM

1893 OHMS

HEATER

9.28 OHMS

W

HI-LIMIT

THERMOSTAT

*TURBIDITY

SENSOR

R

P5

WATER VALVE

699 OHMS

FLOAT

SWITCH

PK

P3- 3

W

Y

Y

P1- 4

P1- 3

*RINSE AID

LEVEL SENSE

BK

BK

P4- 2

P4- 1

P7

P10

P3-5

DOOR

SWITCH

W

NEUT W

L1 BK

BK

BK

P1-1

P8

R

P2-1

W

P2-2

BK

P2-3

W

OUTPUTS

TURBIDITY SENSE

DISPENSERS

HEATER

DRAIN MOT OR

DRY SYSTEM
PUMP MOTOR

WATER VALVE

SERVICE DATA SHEET

P/N: 154371501

Electronic Series

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LO

PF

HO

CL

'01-09'

....Low liquid in the rinse aid dispenser

.....A power failure has occurred

....Water heating delay

.....Close and l atch the door

....Hour(s) delay before start

This information is intended for use

by persons having electrical and

mechanical training and a level of

knowledge of these subjects

generally considered acceptable in

the applian ce repair trade. Frigidaire

Company cannot be responsible, nor

assume any liabili ty, for injury or

damage of any kind arising from the

use of this Service Data Sheet.

The water/service test is a special function
initiated from th e power failure mode or id le
mode.

While in power failure mode

While in idle m ode

- simul taneously
press the NO HEAT DRY/POWER DRY OFF and
START/CANCEL pad s for 1 1/2 s econds.
The dishwasher will then step through the test
cycle per the chart. Pushing the START/CANCEL
pad will advance the dishwasher t o the next st ep.

- simu ltaneously press
HI-TEMP WASH & START/CANCEL pads for
1 1/2 seconds.

Water/Service Test

B-2

SERVICE DATA SHEET

Color Code

BK....... ....... ...... ..... B lack

BK-W.......... .B lack/White

BU...... ...................... B lue

PK....... .................... .P ink

R...............................Red

R-BK...............Red/Black

R-Y .......... ......Red/Yellow

VIO.........................Violet

W.... .......................White

W-BK...........Wh ite/Blac k

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6(16,1*

:$6+,1*

5,16,1*

'5<,1*
&/($1

237,21/('V)ODVKLQJ

67$786/('V)ODVKLQJ

----------------------Turbidity sensor is checking the condition of the wash/rinse water.

No sensing for SAVER CYCLE.

----------------------Wash portion of cycle.

-----------------------Rinsing portion of cycle.

------------------------Drying portion of cycle.

-------------------------Shows completion of cycle. Indicator light will switch of f wh en door is open ed.

-- WASH BOOST and NO HEAT DRY LED's flashing indicates power failure has occurred. Press
START/CANCEL pad and reselect desired options and cycle.

-- The STATUS LED's that are lit when the door is opened will flash. Close door.

This information is intended for use

by persons having electrical and

mechanical training and a level of

knowledge of these subjects

generally considered acceptable in

the appliance repair trade. Amana

Appliances cannot be responsible,

nor assu me any liabili ty, for injury or

damage of any kind arising from the

use of this Se rvice Data Sheet.

Operation

LO

PF

HO

CL

'01-09'

....Low liquid in the rinse aid dispenser

.....A power failure has occurred

....Water heating delay

.....Close and latch the door

....Hour(s) delay before start

PUMP MOT OR

4.3 OHMS
THERMISTOR

10000 OHMS

@ 25 C

DRAIN MOTOR

28 OHMS

VIO

120VAC

60HZ

MEMBRANE SWITCH

ELECTRONIC

CONTROL

BOARD

*SOME MOD E L S

P6

P9

*

BU

W

DISPENSER

1928 OHMS

R-YW

P3- 1

W

W

R-BK

*BLOWER

214 OHMS

W

P3- 2

VENT SYSTEM

1893 OHMS

HEATER

9.28 OHMS

W

HI-LIM IT

THERMOSTAT

*TURBIDITY

SENSOR

R

P5

WATER VALVE

699 OHMS

FLOAT

SWITCH

PK

P3- 3

W

Y

Y

P1- 4

P1- 3

*RINSE AID

LEVEL SENSE

BK

BK

P4- 2

P4- 1

P7

P10

P3-5

DOOR

SWITCH

W

NEUT W

L1 BK

BK

BK

P1-1

P8

R

P2-1

W

P2-2

BK

P2-3

W

The water/service test is a special function
initiated from th e power failure mode or id le
mode.

While in power failure mode

While in idle m ode

- simul taneously
press the NO HEAT DRY and START/CANCEL
pads for 1 1/2 sec onds.
The dishwasher will then step through the test
cycle per the chart. Pushing the START/CANCEL
pad will advance the dishwasher to the next step.

- simultaneously press
WASH BOOST & START/CANCEL pads for
1 1/2 se conds.

Water/Service Test

000926

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