Electrolux FDR251RJR0, FDR252RBS0, FDR251RJS0, FDS251RJR0, FDR252RBB0 Service Manual

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DISHWASHER
SERVICE MANUAL

2002 MECHANICAL MODELS:

FDR251RJR0 FDR252RBB0
FDR251RJS0 FDR252RBS0
FDS251RJR0 FDS252RBS0

:KLWH: HVWLQJKRXVH

5995371183

May 2002

TABLE OF CONTENTS

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

MODEL TECHNICAL SPECIFICATIONS ...................................................................4

COMPONENT OPERATION AND TESTING

Safety Precautions ................................................................................................................................. 5

Timer ...................................................................................................................................................... 5

To test the timer ............................................................................................................................... 5

Selector Switch ....................................................................................................................................... 5

To test selector switch ..................................................................................................................... 5

Door Latch and Switch Assembly ........................................................................................................... 6

To test door switches ....................................................................................................................... 6

Detergent and Rinse Aid Dispenser ......................................................................................................... 6

Operation of the dispenser ................................................................................................................ 6

To Test the Dispenser ...................................................................................................................... 7

Water Fill Valve ...................................................................................................................................... 7

To test the water valve ..................................................................................................................... 7

Water Valve Troubleshooting .................................................................................................................. 7

No water in the tub............................................................................................................................ 7

Water will not shut off ....................................................................................................................... 8

Water level too low ........................................................................................................................... 8

Heating Element ..................................................................................................................................... 8

To check heater................................................................................................................................ 8

Thermostat ............................................................................................................................................. 8

To check thermostat......................................................................................................................... 8

Fill Funnel and Air Gap Assembly ........................................................................................................... 8

Motor Start Relay .................................................................................................................................... 8

To test the relay ............................................................................................................................... 8

Motor and Pump Assembly ..................................................................................................................... 9

Motor and pump assembly in Wash .................................................................................................. 9

Motor and Pump Assembly in Drain.................................................................................................. 10

SERVICE AND REPAIR DISASSEMBLY

Safety Precautions ................................................................................................................................. 11

Remove Outer Door Panel ...................................................................................................................... 11

Remove Control Panel ............................................................................................................................ 11

To Replace Timer .................................................................................................................................... 11

Replace Selector Switch ......................................................................................................................... 12

Replace Door Latch Assembly ................................................................................................................ 12

Replace the Detergent and Rinse Aid Dispenser ..................................................................................... 12

Replace Thermostat ............................................................................................................. ................... 12

Remove Access Panel............................................................................................................................ 12

Replace Float Switch and Mounting Bracket ........................................................................................... 12

Replace Door Seal .................................................................................................................................. 13

Replace Water Valve .............................................................................................................................. 13

Replace Fill Tube .................................................................................................................................... 13

Replace Heater ....................................................................................................................................... 13

Replace Door Springs and Hinges ........................................................................................................... 14

Replace Upper Rack ............................................................................................................................... 14

Replace Upper Rack Tub Rollers ............................................................................................................. 14

1

Replace Motor Starting Relay .................................................................................................................. 14

Disassembly of Pump and Motor ............................................................................................................ 14

To remove motor and pump from dishwasher ................................................................................... 14

Repair Wash Pump ................................................................................................................................. 15

Remove diffuser ............................................................................................................................... 15

Remove upper wash impeller ..................................................................................................... ....... 15

Remove macerator blade from shaft ................................................................................................. 15

Remove pump housing cover ........................................................................................................... 15

Remove pump slinger ....................................................................................................................... 15

Remove volute cover ........................................................................................................................ 15

Remove lower pump impeller ............................................................................................................ 15

Remove carbon face half of pump seal ............................................................................................. 15

Remove sump .................................................................................................................................. 15

Motor to Sump Installation ...................................................................................................................... 16

Motor shaft seal................................................................................................................................ 16

Install sump gasket .......................................................................................................................... 16

To Check Motor ...................................................................................................................................... 16

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

APPENDIX B - Technical Data Sheet ........................................................................ B - 1

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 mechanical training
and a level of knowledge of these subjects generally considered acceptable in the appliance
repair trade. Electrolux Home Products, Inc. cannot be responsible, nor assume any liability,
for injury or damage of any kind arising from the use of this manual.

© 2002 Electrolux Home Products, Inc.

3

FRIGIDAIRE TECHNICAL SPECIFICATIONS

MODEL FDR251RJR0 FDR251RJS0 FDS251RJR0 FDR252RBB0 FDR252RBS0 FDS252RBS0

ELECTRICAL

Service Data

Sheet

Voltage 120 VAC 120 VAC 120 VAC 120 VAC 120 VAC 120 VAC

Cycles 60 Hertz 60 Hertz 60 Hertz 60 Hertz 60 Hertz 60 Hertz

Circuit Rating

(Amps)

Motor (HP) 1/8th 1/8th 1/8th 1/8th 1/8th 1/8th

Motor (Amps) 3.2 3.2 3.2 3.2 3.2 3.2

Heater (Watts) 600 600 600 600 600 600

Total Amps 8.5 8.5 8.5 8.5 8.5 8.5

Temp Boost 140°F (60°C) 140°F (60°C) 140°F (60°C) 140°F (60°C) 140°F (60°C) 140°F (60°C)

COMPONENT RESISTANCE (ohms)

Timer Motor 7700 7700 7700 7700 7700 7700

Heating Element 23-25 23-25 23-25 23-25 23-25 23-25

Motor Run Winding 6.0 6.0 6.0 6.0 6.0 6.0

Wash Start Winding 6.4 6.4 6.4 6.4 6.4 6.4

Drain Start Winding 6.4 6.4 6.4 6.4 6.4 6.4

Dispenser 1928 1928 1928 1928 1928 1928

Water Valve Solenoid 699 699 699 699 699 699

WATER SUPPLY

Minimum Incoming

Water Temperature

Pressure

(min/max - psi)

Connection

Normal Cycle Water

Consumption (gal.)

Water valve Flow Rate

(GPM)

Water Recirculation

Rate (GPM)

Water Fill Time

(Seconds)

154384501 154384501 154384501 154384501 154384501 154384501

15 / 20 15 / 20 15 / 20 15 / 20 15 / 20 15 / 20

(NPT)

120°F

(49°C)

20 / 120 20 / 120 20 / 120 20 / 120 20 / 120 20 / 120

3/8" 3/8" 3/8" 3/8" 3/8" 3/8"

6.7 6.7 6.7 6.7 6.7 6.7

.83 .83 .83 .83 .83 .83

12 12 12 12 12 12

87 87 87 87 87 87

120°F

(49°C)

120°F

(49°C)

120°F

(49°C)

120°F

(49°C)

120°F

(49°C)

4

COMPONENT OPERATION AND TESTING

SAFETY PRECAUTIONS

Always turn off the electric power supply before servicing
any electrical component, making ohm meter checks,
or replacing any part.

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.

TIMER

The timer allows the user to select the various cleaning
cycles of the dishwasher. The timer controls all the
electrical functions of the dishwasher in all stages of
each cycle. All electrical functions can be traced on the
charts and diagrams provided in this service manual.

To Test The Timer

If the timer is suspected of faulty operation, reference
the timer chart and the wiring diagram and proceed
as follows:

1. Check power to product and door switch.

2. Set timer to “Pots and Pans” position. Note: If
dishwasher has a 5 button selector switch, be sure
to select “Pots and Pans” position.

3. Close and latch door. The pump motor should start
into a pump out.

4. If the motor does not start, check for power at
motor starting relay between blue-orange wire and
a neutral wire.

5. If there is no power at blue-orange wire on relay
then follow blue-orange wire back to timer. Check
this wire at timer for power.

6. If no power is found at timer on the blue-orange
wire, disconnect power to the dishwasher. Check
for continuity between blue-orange wire and brown
wire from selector switch to timer. You should read
zero (0) ohms. If not, timer contact is open and
timer needs to be replaced.

7. If motor does start, let timer motor advance timer
through drain cycle to determine if timer motor and
drive train are fully operative.

8. Let timer advance on through entire cycle to see
that all other operations perform properly.

Continuity through the timer contacts and other con­trols and wires can also be checked with an ohmmeter.

BE SURE TO DISCONNECT THE ELECTRICAL
POWER

If a timer contact fails to close or open as shown on the
timer sequence chart or is burnt, the timer needs to be
replaced.

If the timer does not advance automatically according
to the timer sequence chart, the timer needs to be
replaced.

To perform testing of the timer you will need to remove
the control panel. To remove the control panel, see the
section on SERVICE AND REPAIR.

SELECTOR SWITCH

Two types of selector switches are used on
dishwashers. A rocker type, which is used on some
models for simple options such as heated or cool dry,
and a multi functional push-button type, that provides
the user with a wide selection of dishwashing cycles
and/or multiple options.

The selector switch can be tested using an ohmmeter,
along with the wiring schematic and the selector switch
chart.

To Test Selector Switch

1. Disconnect dishwasher from power supply.

2. Remove control panel. ( See Control Panel
Removal in Service and Repair section. )

3. Carefully pull console forward to gain access to
selector switch.

4. Remove electrical leads from selector switch.

5. Place leads from ohmmeter across switch terminal
contact. See selector switch chart for switch
operation.

5

DOOR LATCH AND SWITCH ASSEMBLY

The door latch and switches are located in the door
assembly behind the control panel. The dishwasher
will not operate until the door is closed. The door latch
engages the door catch mounted on the top frame of
the dishwasher and holds the door firmly to the tub seal.
As the cam in the latch is pushed back, the two door
switches are closed. The door switches are normally
open, double-pole, single throw switches.

To Test the Door Switches

1. Disconnect dishwasher from power supply.

2. Remove screws securing control panel to inner door
panel.

3. Remove wires from switches. Do not remove latch

from door

4. Using an ohmmeter, check for continuity. You should
read zero (0) resistance across switch with door
closed and latched. With door open, your meter
should read infinite resistance, or no reading at all.

5. If either switch shows a bad reading, replace door
latch.

Operation of the Dispenser

The dishwasher has two detergent cups; one is molded
into the inner door panel without a cover. The second
is the dispenser having a spring-loaded cover with a
manual or automatic release latch. Prior to starting the
dishwasher, detergent is added to the dispense cup and
the cover is latched closed. The open cup is also filled
but will empty 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 for one minute. It takes about 30
seconds for the actuator to move the pivot arm far
enough to release the cover. When the 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 spring­loaded cover.

Wax Motor
Actuator

Rinse Aid Injector
Pump Arm

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. By removing the cap from the rinse aid dispenser,
you can gain access to a pointer for adjusting the amount
of rinse aid dispensed. The adjustment is from one (1)
to four (4) ml. The dispenser is replaced as a complete
assembly; no replacement parts are available. For a
more detailed explanation on how the dispenser
operates see “Operation of the Dispenser”.

Door Latch
Shaft

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 of the rinse aid 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 aid injector pump arm
directs the pivot arm pin down the front of the rinse aid
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 power to the dispense
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.

6

Pivot Arm

When power is removed, the pivot arm spring forces
the pin to the bottom of the slot. A leaf spring pushes
the rinse aid injector pump arm to the left so that the pin
returns to the original starting position.

Rinse Aid Injector
Pump Arm

Wax Motor
Actuator
Extended

Pivot Arm

WATER FILL VALVE

The water valve is timer controlled and solenoid
operated. The flow of water is controlled by a rubber
flow washer capable of maintaining a flow rate of .83
gallons per minute with incoming water pressure of 20
to 120 P.S.I.

To Test the Water Valve:

1. Disconnect dishwasher from power supply.

2. Remove screws securing bottom service panel and
remove panel.

3. Remove electrical leads from valve and check
solenoid with an ohmmeter. See the Product
Specifications for your model for the correct reading.

4. To check for operation, connect a separate 120VAC
cord to valve and connect a ground to frame. Apply
power for a few seconds and then remove power.
The water flow should stop within 2 seconds. If not,
replace valve.

1

4

23

Adjustment inside Rinse Aid Dispenser

To test the dispenser:

1. Select

2. Attach voltmeter to wax motor actuator. After timer

3. Make sure pivot arm raises completely for pin to

This test can be done with power from the dishwasher
or by using a test cord and connecting the wax motor
actuator to a 120 VAC power source. Remember to
remove power when the actuator is fully extended.

Light Wash

to detent for

advances through drain and fill, it should read 120
volts as power is applied to actuator. Detergent
dispenser cup cover should open within 30
seconds.

move from back to front of rinse aid injector pump
arm. After power is removed, pivot arm should
return to bottom by slot in front of rinse aid injector
pump arm.

on selector switch and turn timer

Light Wash

. Close and latch door.

WATER VALVE TROUBLESHOOTING

No Water in the Tub:

1. Be sure main water supply and electrical power is
turned on.

2. Check float assembly for free movement up and
down.

3. Remove service panel.

4. Advance timer to fill position and latch door. Start
dishwasher.

5. Check voltage to fill valve solenoid.

6. If voltage is present, disconnect power and measure
resistance of solenoid coil. The resistance on this
coil should be between 998 and 1188 ohms. If
solenoid coil proves to be bad, replace valve.

7. If solenoid checks good, turn off water supply and
electrical power to dishwasher. Remove water line
from valve and check screen for debris. Clean
screen and reassemble.

8. If there is no power to solenoid, check float switch,
timer , door switch, or appropriate wiring harness.

7

Water Will Not Shut Off:

1. Disconnect dishwasher from power supply. If water
continues to flow, close main water supply valve
and replace dishwasher valve.

2. If water turns off when power is disconnected,
check for welded contacts in timer or timer motor
that fails to advance. Replace timer. See REPLACE
TIMER in the SERVICE AND REPAIR section.

Water Level Too Low:

Water level should touch the heating element.

1. Check incoming water pressure: 20 P.S.I. is
minimum pressure for an adequate fill.

2. Check main water supply valve to make sure it is
fully open.

3. Check for a clogged screen in valve.

HEATING ELEMENT

The heating element maintains the water temperature
in the dishwasher during parts of the wash and rinse
cycles. Refer to the tech data sheet with the dishwasher
or the cycle chart in this manual to know in which cycles
the heater is energized. The heater also heats the air
during the static dry cycle.

To Check Heater:

1. Advance timer to dry cycle. Select
the selector switch.

2. Close and latch dishwasher door.

3. Allow dishwasher to operate for one to two
minutes. Open door and note if heat is present.

CAUTION: DO NOT TOUCH THE HEATER!

Heated Dry

on

THERMOSTAT

The thermostat mounted on the inner door panel on
some models gives the user the option of a high
temperature wash. On these models, the contact for
the timer motor will open in the second wash. The
dishwasher will pause until the thermostat closes at a
water temperature of 140°F. The thermostat senses the
temperature of the water as it falls down the inner door
panel.

To Check Thermostat:

1. Run hot water in sink

2. Place sensing lead from thermometer in sump of
dishwasher.

3. Set timer to Light Wash and select water heat on
selector switch.

4. Close door to start dishwasher.

5. Timer will stop and delay light will light. Check
temperature of water in sump. After water
temperature reaches 140°F, delay should go out
and timer advance.

6. If timer advances, thermostat is good.

7. If not, jumper out thermostat to see if timer
advances. If timer advances, thermostat did not
close. Replace thermostat.

FILL FUNNEL AND AIR GAP ASSEMBLE

The fill funnel and air gap assemble is molded onto the
left side of the tub. It’s purpose is to provide a method
of supplying water to the tub in the wash and rinse cycles
through an air gap, as required by plumbing codes. The
air gap prevents the siphoning of wash water back into
the water supply system, should the water pressure drop
to less than atmospheric pressure. This air gap should
not be stopped up or covered in any way.

MOTOR START RELAY

The motor start relay has a normally open contact in
series with the motor start windings. The relay coil is
connected in series with the motor main winding. At start
up, the high current draw of the main winding passing
through the relay coil causes the contacts to close. This
sends current back to the timer and the timer directs
this current to the apricot start winding in the motor.
When the motor attains normal speed, the current draw
drops to normal and the relay contacts reopen, taking
the start winding out of the circuit. The motor start relay
is mounted on the dishwasher door hinge, weld
assembly, behind the service panel.

To Test the Relay:

1. Disconnect dishwasher from power supply.

2. Remove service panel.

3. Remove electrical leads from motor start relay.

4. Check relay coil for continuity across terminals L

and M. Replace if open.

5. To check contacts L and S, remove screw securing

motor start relay.

6. Turn relay upside down and check contacts for

continuity. They should be closed, indicating
continuity in this position and infinite continuity when
relay is right side up.

NOTE: This relay is position sensitive, which

means that when energized, the contacts are
pulled up to close, and are opened by gravity.

8

MOTOR AND PUMP ASSEMBLY

The drive motor on this dishwasher is a 1/8 HP, 120
volt, 60 HZ, 1 phase , 3.2 amp, 3450 RPM; internal
thermal overload protected motor. The motor is mounted
under the pump assembly. The pump is direct driven.
The motor itself is dual directional, having three sets of
windings. The main or run winding will run in either
direction. There are two phase or starting windings. One
phase winding starts the motor in a counterclockwise
direction. The other phase winding starts the motor in
the clockwise direction.

Motor and Pump Assembly in Wash

The timer contact closes to send power to the motor
start relay, then on to the motor, starting the motor in
the counterclockwise direction. As the motor starts, the
water level in the bottom of the dishwasher will be just
to the under side of the heater. The wash impeller pulls
water into the pump housing up under the pump housing
cover. As the water is drawn into the impeller, it must
pass through the center of the housing cover and into
the macerator blade, just under the impeller. This
macerator blade is designed to cut up soft food waste
so it can exit the dishwasher. As the water passes
through the macerator blade, it then enters the wash
impeller and is pushed out into the diffuser housing
where the water is directed into the lower spray arm.
The pump in the wash cycle will pump 24 to 28 gallons
of water per minute into the lower spray arm.

Pump housing cover

Water path
through the
pump

This line shows the
path that the water
takes as it enters
the pump and exits
through the
diffuser.

Pump Housing

Diffuser

Upper impeller

Macerator

Water path
through the
pump

This line shows
the path that
the water takes
as it enters the
pump and exits
through the
diffuser.

9

Motor and Pump Assembly in Drain

The timer contact closes to send power to the motor
start relay, then on to the motor. This time the motor
starts in the clockwise direction. When the motor starts
up, the water in the sump enters the pump housing
through the pump housing cover and into the volute
cover. The volute cover completely covers the lower
impeller. The lower impeller pushes water through the
pump to the drain port.

Volute Cover

This pump will drain at a rate of 3 to 4 gallons of water
per minute. As the water exits the drain port, the
pressure opens a check valve on the outside of the
port. This check valve, when closed, will keep water
from entering the dishwasher from the house drain if it
would get restricted. After the water passes through the
check valve, it enters the drain hose and exits the
dishwasher.

Pump housing cover

Water path into
the pump.

This line shows the
path of the water as
it enters the drain

section of the pump.

Pump housing

Water path as it
exits the pump.

This line shows the exit
of the water from the
pump. There is a check
valve in the end of the

drain port.

Lower impeller

Drain port

10

SERVICE AND REPAIR DISASSEMBLY

SAFETY PRECAUTIONS

Always turn off the electric power supply before servicing
any electrical component, making ohmmeter checks,
or replacing any part.

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.

Remove Outer Door Panel

1. Disconnect dishwasher from electrical supply.

2. Open door and remove two bottom screws from
both sides of outer door panel. Hold panel as
screws are removed. See figure below.

3. Close door and pull bottom of outer door panel
away from door as you pull down on outer door
panel.

Remove Control Panel

1. Disconnect dishwasher from electrical supply.

2. Open door and remove six screws around control
panel. See figure below.

3. Close door and pull control panel away from top of
door and up. Be sure control panel clears door latch.

Control Panel can be removed without removing outer
door panel. Be sure to use caution not to scratch outer
door panel.

Door Panel
Screws

To Replace Timer:

1. Disconnect dishwasher from electrical supply.

2. Remove timer knob. Note: You may need to add
two pieces of tape to the sides of the knob and use
pliers to remove the knob.

3. Remove six (6) screws securing control panel to
inner door panel. (See Remove Control Panel .)

4. Carefully pull console forward to gain access to
the controls.

5. Remove one (1) screw securing timer to control
panel. With screw removed, lift locking tab just
above mounting screw and slide timer to left and
lift timer from control panel.

Screw Hole

Lock Tab

6. Lift the locking tab and pull multiconnector from
timer. See figure below.

7. To install new timer, reinstall multiconnector onto
new timer. Line up mounting tabs on right side of
timer, as well as under locking tab into slots in
control panel. Slide timer to right until lock tab on
timer falls over post on control panel, then install
mounting screw.

8. Reinstall control panel and knob. Check operation.

Control Panel
Screws

Lock Tab

Door Panel
Screws

11

Replace Selector Switch

1. Disconnect dishwasher from the power supply.

2. Remove control panel. (See Remove Control
Panel.)

3. Remove switch mounting screws.

4. Remove plastic shield from switch. Reinstall onto
new switch.

5. Transfer wires to new switch.

6. Reinstall new switch in reverse order.

NOTE: If Selector Switch is a rocker switch,

squeeze locks on ends of switch to remove it from
the control panel.

Replace Door Latch Assembly

Note: Gasket for dispenser only comes with

dispenser.

Screws to mount
dispenser

Replace Thermostat

1. Disconnect dishwasher from electrical supply.

2. Remove outer door panel. (See Remove Outer
Panel.)

3. Remove screw holding retainer over thermostat.

4. Remove wires from thermostat.

1. Disconnect dishwasher from electrical supply.

2. Remove control panel. (See Remove Control
Panel.)

3. Remove wires from door switches.

4. Remove two screws mounting latch to inner door
panel.

5. Slightly pull latch away from top and lift up to clear
location tab on bottom of latch from mounting hole
on inner door panel.

Caution: When reinstalling door latch, be sure
location tab is in hole in the inner door panel. If the
location tab is not in hole properly, the door
switches may not close properly. See figure below.

Warning: Be sure the wires are installed on door
switch properly. Make sure both black wires are
on one switch as well as both white wires are on
the second switch.

Replace the Detergent and Rinse Aid
Dispenser

1. Disconnect dishwasher from electrical supply.

2. Remove outer door panel. ( See Remove Outer
Panel)

3. Remove two wires from wax motor actuator.

4. Remove six screws holding dispenser.

Remove Access Panel

1. Disconnect dishwasher from electrical supply.

2. Open dishwasher door and remove two screws
from top of access panel.

3. Close door; remove two screws, one on either side
of panel.

4. Pull access panel out and up to remove.

5. To reinstall, reverse order.

Replace Float Switch and Mounting
Bracket

1. Disconnect dishwasher from electrical supply.

2. Remove access panel .(See Remove Access
Panel above.)

3. Remove electrical wires from switch.

4. Carefully spread switch retainers and slide switch
out of bracket.

12

5. To remove bracket, remove screw mounting bracket
to bottom of tub.

6. To reassemble float switch and bracket, reverse
order.

Replace Door Seal

1. Open door and pull seal from mounting channel in
tub.

2. Check new seal for center marking on backside of
seal.

3. Find center of seal and start at door strike. Insert
seal into channel.

4. Go to bottom of either side and start seal into
bottom, then push seal into channel at 5 to 6 spots
up that side.

5. Go to other side and repeat step 4.

6. Close door to set seal.

Replace Water Valve

1. Disconnect dishwasher from electrical supply.

2. Turn off water supply to water valve from water

source.

3. Remove access panel. (See Remove Access
Panel.)

4. Disconnect water line from water valve. Be careful
to catch water when removing water line from valve.

5. Remove tub fill tube from valve.

6. Remove mounting screws.

7. Remove wiring harness connector.

8. Install new water valve . Reverse procedure to
complete repair.

6. Slide dishwasher forward to gain access to water
inlet to tub and remove clamp.

7. Install new tube in reverse procedure to complete
repair.

NOTE: When
reinstalling new filll

tube, be sure the
tube is mounted
into retainers on
side of tub.

Replace Heater

1. Disconnect dishwasher from electrical supply

2. Remove access panel (see Remove Access Panel).

3. Remove wire connections from terminals on heater.

4. Remove nuts holding heater to bottom of tub.

5. DO NOT REMOVE RETAINER CLIPS FROM TUB.

6. From inside of tub, lift heater into tub and slide
heater out of retainer clips.

7. Install new heater in reverse procedure to complete
repair.

8. After reassembly, be sure to check for water leaks.

Replace Fill Tube

1. Disconnect dishwasher from electrical supply.

2. Remove access panel. (See Remove Access
Panel.)

3. Check water line, drain line and electric line for slack
to slide dishwasher from under counter.

4. Remove tube from back of valve by expanding
clamp.

5. Remove two screws mounting dishwasher to
countertop.

13

Replace Door Springs and Hinges

NOTE: Springs and hinges can be changed

without pulling dishwasher from under counter

5. Install new relay. Reverse procedure to complete
repair.

6. Start dishwasher motor to check operation.

Disassembly of Pump and Motor

1. Disconnect dishwasher from electrical supply.

2. Remove outer door panel. (see Door Panel
Removal)

3. Remove access panel. (see Remove Access Panel)

4. Remove door spring hook from hole in frame, spring
from hinge and spring pad from hinge. Slide cover
off hinge and save for reuse.

5. Open door to loosen screws that mount hinge to
inner door panel. Reclose door. Do not remove
screws until door is closed.

6. Remove nuts from hinge mounting screws. Remove
screws. Slide hinge over to remove pin from frame
mounting hole.

7. Install new hinge to complete repair.

Hinge Cover

Spring Pad

The pump and motor are serviceable and are not
available as one unit. Servicing the water distribution of
this product can be done without removing the pump
from the dishwasher.

To Remove Motor and Pump from
dishwasher

1. Disconnect dishwasher from electrical supply.

2. Remove access panel. (see Remove Access Panel)

3. Remove lower rack.

4. Remove drain hose.

5. Disconnect wire plug from motor.

6. Turn three sump retainers into sump and loosen
sump.

7. Push sump into tub from under dishwasher.

8. Remove from inside of tub.

Replace Upper Rack

1. Remove end cap from both rack slides.

2. Pull rack forward off slides.

3. Install new rack to complete repair.

Replace Upper Rack Tub Rollers

1. See Upper Rack replacement.

2. Remove back slide end cap slide rail off rollers

3. Remove roller.

4. When installing new roller, first turn screw
counterclockwise to keep from cross-threading hole,
then tighten roller.

Replace Motor Starting Relay

1. Disconnect dishwasher from electrical supply.

2. Remove access panel. (see Remove Access Panel)

3. Remove wires from relay.

4. Remove screw holding relay to front frame.

Pictured is the motor and wash pump removed from
the dishwasher. This is not an assembly and can be
disassembled for service.

14

Repair Wash Pump

Remove spray Arm

1. Remove tower by turning off counterclockwise from
spray arm.

2. Remove 3/8” nut holding arm to diffuser.

Remove diffuser

Remove diffuser by removing 4 5/16” bolts holding
diffuser to sump plate

Remove Upper Wash Impeller

Upper wash impeller is held in place by 1- T-25 Torx
screw.

Remove volute cover

Remove volute cover held in by 2 T-20 Torx screws.

Remove lower pump impeller

Remove carbon face half of pump seal

Remove macerator blade from shaft.

Remove pump housing
cover

Remove pump
slinger

Remove Sump

Complete motor and pump must be removed to replace
sump.

1. Disassemble pump as listed above.

2. Remove three 5/16” bolts holding motor to sump
and remove motor.

Motor Mounting
Screws

15

Motor to Sump Installation

Installation of motor to pump housing requires centering

of motor shaft using service tool P/N 154384901.

Place pump housing on top of motor shaft lining up the
screw hole of motor top end shield to embosses on pump
housing. ( Make sure the motor plug is facing towards
you and the drain pump port is at the right side to install
correctly.) Now place service tool over top of motor shaft
and slide service tool down into pump housing to center
motor shaft to pump housing. Install mounting screws
for motor to pump housing. Remove service tool and
then complete rest of installation of other parts to
assemble motor.

To Check Motor

The motor on the dishwasher is a dual directional motor.

1. Disconnect power from dishwasher.

2. Remove access panel.

3. Remove wiring disconnect plug from motor.

4. With motor unplugged, check resistance on each
motor winding. See chart below for correct
readings.

To Check Main Run Winding, place one lead of
ohmmeter on terminal on far right of motor plug and
second lead from ohmmeter on next terminal to left.

To Check wash start winding, place one lead of
ohmmeter on terminal on far-left side of motor plug.
Place second lead from ohmmeter on third terminal
to right.

To Check drain start winding, place one
ohmmeter lead on each of the two center terminals
on motor plug.

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Motor Shaft Seal

Motor shaft seal will come mounted on a sleeve; this is
to protect the seal surfaces. This sleeve must be
removed to install the new seal.

1. Check seal faces to be sure they are both clean
and free of any foreign material.

2. Install ceramic half of seal into sump, making sure
it bottoms out in sump.

3. Slide top half of seal onto motor shaft making sure
it is down and tight and the surfaces are mating
properly.

Install sump gasket

1. Turn sump up side down.

2. Find notch on inside of
gasket and line notch up
with solid area beside drain
port.

3. Do not apply any lubricant

to inside of gasket.

Place gasket onto sump,
making sure flange on
gasket goes into sump
channel. See cut away.

4. Apply lubricant to tub to aid installing sump.

Blue/Black

Blue/Red

White

Blue

16

APPENDIX A

Exploded Views Location Chart

Model

Number

FDR251RJR0 A - 2 A - 3 A - 6 A - 10 A - 11 A - 15

FDR251RJS0 A - 2 A - 3 A - 6 A - 10 A - 11 A - 15

FDS251RJR0 A - 2 A - 3 A - 7 A - 10 A - 12 A - 15

FDR252RBB0 A - 2 A - 4 A - 8 A - 10 A - 13 A - 15

FDR252RBS0 A - 2 A - 4 A - 8 A - 10 A - 13 A - 15

FDS252RBS0 A - 2 A - 5 A - 9 A - 10 A - 14 A - 15

Control

Panel

Door Tub

Motor &

Pump

Frame Racks

A - 1

CONTROL PANEL

For Model #'s

FDR251RJR0
FDR251RJS0

FDS251RJR0
FDR252RBB0
FDR252RBS0
FDS252RBS0

A - 2

DOOR

For Model #'s

FDR251RJR0
FDR251RJS0
FDS251RJR0

A - 3

DOOR

For Model #'s

FDR252RBB0
FDR252RBS0

A - 4

DOOR

For Model #'s

FDS252RBS0

A - 5

TUB

For Model #'s

FDR251RJR0
FDR251RJS0

A - 6

TUB

For Model #'s

FDS251RJR0

A - 7

TUB

For Model #'s

FDR252RBB0
FDR252RBS0

A - 8

TUB

For Model #'s

FDS252RBS0

A - 9

MOTOR & PUMP

For Model #'s

FDR251RJR0
FDR251RJS0
FDS251RJR0

FDR252RBB0

FDR252RBS0
FDS252RBS0

A - 10

FRAME

For Model #'s

FDR251RJR0

FDR251RJS0

A - 11

FRAME

For Model #'s

FDS251RJR0

A - 12

FRAME

For Model #'s

FDR252RBB0
FDR252RBS0

A - 13

FRAME

For Model #'s

FDS252RBS0

A - 14

RACK

For Model #'s

FDR251RJR0

FDR251RJS0

FDS251RJR0
FDR252RBB0
FDR252RBS0
FDS252RBS0

A - 15

APPENDIX B

Dishwasher Tech Data Sheet

Model

Number

FDR251RJR0 154384501 B - 2 B - 3 B - 3 B - 3

FDR251RJS0 154384501 B - 2 B - 3 B - 3 B - 3

FDS251RJR0 154384501 B - 2 B - 3 B - 3 B - 3

FDR252RBB0 154384501 B - 2 B - 3 B - 3 B - 3

FDR252RBS0 154384501 B - 2 B - 3 B - 3 B - 3

FDS252RBS0 154384501 B - 2 B - 3 B - 3 B - 3

Service Data

Sheet

Specifications

Timer
Chart

Timer
Block

Schematic

B - 1

SERVICE TECHNICIAN S USE ONLY

Dishwasher Tech Data Sheet

WARNING: DISCONNECT APPLIANCE

FROM ELECTRICAL SUPPLY BEFORE

SERVICING.

SPECIFICATIONS

Electrical Supply (Under Load) - 60 Hz - 120 VAC ± 10%
Supply Water Flow Rate - Must fill 1 quart container in

18 seconds.

Supply Water Temperature - 120°F to 150°F (49°C - 66°C)
Before starting dishwasher, run water at sink faucet until

hot.

Thermostat

± 5°F (50°C ±3°C). The sump water should heat to
approximately 140° ± 5°F (60°C ±3°C) with outer door in place.

Water Charge - 5 quarts (4.7 liters)
Spray Arm Rotation - 20 to 40 RPM

(some models)

MOTOR INSTALLATION

Installation of motor to pump housing requires centering of
motor shaft using service tool 154384901

. Service tool is not packed with motor and must be

below)

ordered separately. Failure to center motor shaft may result in
seal leaks and noisy operation. The centering tool is also used
to install the seal.

COMMON CAUSES OF LEAKS

Door Area

• Tub gasket not firmly seated in corners.

• Tub shifted out of square during installation, causing leak
in upper corners.

• Vent baffle not sealing properly against tub dam.

• Spray arm split, open crimp seams, or binding.

• Sudsing, which may be caused by:

• use of non-dishwasher detergent,

• low water temperature (should be 140°F [60°C]),

• inferior dishwasher detergent, not suppressing foam.

- Contacts will close at 122°F

(see illustration

DO NOT REMOVE: SERVICE TECHNICIAN’S USE

Lower pump housing and motor area

• Motor shaft seal damaged or defective.

• Pump housing gasket not seated, screws not tight.

• Pump housing cracked.

• Hose connections loose.

Float area

• Dirty float tube causing float to stick.

Other areas

• Water temperature over 160°F (71°C) causing excessive
condensation.

WASHABILITY COMPLAINTS

Dishes not clean

• Supply water temperature 140°F (60°C) for best results.

• Improper loading.

• Detergent is old, caked or lumpy.

• Detergent cup is not releasing or opening too soon.

• Low water charge due to low water pressure or clogged
water valve.

• Hard water film (water with 12 grains or more hardness
may require a water softener). Use more detergent.

• Etching (usually on glassware) - caused by a
combination of soft water (0 - 4 grains), water
temperature over 160°F (71°C), or too much detergent.

Dishes not dry

• Dishes not loaded to permit proper draining.

• Wetting agent not being used in models equipped with
automatic wetting agent dispenser.

• Supply water temperature under 140°F (60°C). Purge cold
water out of hot water faucet.

• Low voltage supply.

• Cool Dry is being selected when Hot Dry is needed.

• Defective heating element - a good element has a
resistance of 23 to 25 ohms.

Staining

• Coffee or tea - to remove, place items in dishwasher and
add 1 tablespoon of chlorine bleach to the detergent. Run
machine through the cycle. DO NOT LOAD
SILVERWARE OR METAL ITEMS.

• Red or brown stains on the tub or dishes may be caused
by as little as 1 PPM of iron in the water supply. To
remove iron stains from the tub:

1. Remove all dishware and silverware.

2. Pour 8 oz. (224 ml) of resin bed cleaner, used in
water softeners, into bottom of tub.

3. Place detergent in covered cup.

4. Allow dishwasher to run through complete normal
cycle uninterrupted. The dry cycle may be
omitted.

• Hard water film or lime deposit build-up - pour 2 cups of
vinegar into empty dishwasher and run through Rinse/
Hold cycle. Filmed glasses/dishware may also be
cleaned in this manner, but not silverware. Some
commercial products, such as “Lime-A-Way”, may be
available in your area.
instructions on product container.

Caution: Carefully follow

ONLY

B - 2

B - 3