Frigidaire FDB857RJS1 Service Data Sheet

Exploded View of Wash System
Nozzle
Funnel
Nut
Funnel Base
Center Spray Arm
Lower Spray Arm
Check Ball
Circulation
Motor Assembly
Motor Bracket
Water Inlet Tube
Water Valve
Incoming Water Supply
Pump Assembly
The pump assembly is driven by a synchronous attached by a worm gear clamp to the discharge
motor. Rotation is in the counterclockwise of the drain pump. The drain is then routed up the
direction at 3600 RPM. The motor drives a pump side of the dishwasher and attached to the side
which supplies 100 percent filtered water at a of the tub. This drain loop insures that an air
rate of approximately 12 GPM to one spray arm pocket cannot form near the drain pump and
at a time. The spray arm's operation is alternated cause the pump to air lock. The drain loop on the
by small "pauses" of the motor during the wash side of the tub must be kept in place after servicing.
cycle.
The main pump can easily be removed by
Draining is accomplished by using a small disconnecting the upper spray arm supply tube
separate synchronous drain pump mounted to hose, the drain pump connector hose, the wiring
the side of the sump. The drain pump is harness connections made at the circulation
connected to the main pump by a small rubber motor, the water heat thermistor located on the
hose. The drain check valve is located at the bottom of the pump and rotating the four sump
entrance to the drain pump. The drain hose is
retainers toward the middle of the sump.
900 Watt Heater
Voltage checks of the heater should be made in
Refer to the cycle chart on the reverse side to
the dry portion of the service test mode.
determine when the heater is on during the wash
cycle. The heater cycles ON and OFF for brief
periods during the drying cycle.
Standard Dry Air Flow
When the control advances to the "dry" portion of
the cycle, a linear actuator retracts a valve, which
opens a vent path through the console into the
kitchen.This venting method eliminates
discharging heated moisture into the motor
compartment. The heated, moist air leaving the
dishwasher through the console vent causes
drier air to be drawn into the unit by way of intake
Drain Hose
vents located at the bottom of the door. The
water on the dishes is evaporated into drier air
and the venting process continues. The heating
element is turned ON and OFF during the entire
drying cycle.
Detergent and Rinse Aid Dispenser
Spray Arm
Support
The detergent and rinse aid dispenser is a one
piece component consisting of a molded
Glass Trap
detergent cup and a built-in rinse aid dispenser.
Heating
The detergent cup has a spring loaded cover
Element
and the rinse aid dispenser has a removable
cover.
Filter
Liquid rinse aid is added to the dispenser up to
Soil Director
the fill line indicator. The amount of rinse aid
Volute Cover
released can be adjusted by turning the arrow
indicator from one, being the least amount, to
Drain Motor
four, being the greatest amount.
Delivery Tube
Connector Hose and Clamps
Tub and Door Seal
Sump
The door seal is pressed into the tub channel for
an interference fit. Center the gasket (marked on
back) at the tub top center and press in place
Sump Retainers (4)
Product Specifications
Electrical
Rating ................................... 120 Volts, 60Hz
Separate Circuit..15 amp min.- 20 amp max.
Motor (Amps) ........................................... 1.1
Heater Wattage ....................................... 900
Total Amps (load rated) ......................... 10.0
TempAssure .............................. 140°F ±5°F
(60°C±3°C) [with outer door in place]
TempBoost ............. 145°F ±5°F (63°C ±3°C)
Heated Wash/Heated Rinse
Sanitize .................. 150°F ±5°F (66°C ±3°C)
Hi-Limit Thermostat ................ 200°F (93°C)
Power Dry Air Flow
The Power Dry configuration is the same as the
Standard except it has a cross flow blower located
in the air discharge path. The blower assists the
heating element in producing power to drive the
moist air out of the dishwasher.
Always disconnect the dishwasher from the electrical power source before adjusting or
replacing components.
Symptom
Dishwasher will not operate when
turned on.
To replace dispenser:
• shut off electricity to dishwasher,
• remove outer door panel assembly,
Motor hums but will not start or run.
• disconnect wiring to the actuator,
• remove the six screws,
• remove the dispenser,
• replace and reinstall screws,
Motor trips out on internal thermal
• rewire actuator.
overload protector.
Dishwasher runs but will not heat.
Detergent cover will not latch or
open.
without stretching or bunching. The gasket takes
a short turn at the bottom of the tub channel
before ending at the channel end wall.
Dishwasher will not pump out.
Gasket Cross Section
Mounting
Rib
Dishwasher will not fill with water.
Tub
Interior
Short Turn
Dishwasher water siphons out.
Water Supply
Detergent left in dispenser.
Suggested minimum incoming water
temperature ............................. 120°F (49°C)
Pressure (PSI) min./max. ................... 20/120
Connection (NPT) ..................................... 3 / "
8
Consumption (Normal Cycle) .......................
............. 4.9 - 9.7 U.S. gal., 18.5 - 36.7 liters
Water valve flow rate (U.S. GPM) ........... .83
Water recirculation rate (U.S. GPM) ..............
.................................................... approx. 12
Water fill time ..................................... 87 sec.
Trouble Shooting Tips
Personal Injury Hazard
Check the Following Remedy
1. Fuse (blown or tripped). 1. Replace fuse or reset breaker.
2. 120 VAC supply wiring connection 2. Repair or replace wire fasteners at
faulty. dishwasher junction box.
3. Electronic control board defective. 3. Replace control board.
4. No 12 VAC power to control. 4. Replace control board.
5. Motor (inoperative). 5. Replace motor/impeller assembly.
6. Door switch (open contacts). 6. Replace latch assembly.
7. Door latch not making contact with 7. Replace latch assembly.
door switch.
8. Touch pad circuit defective. 8. Replace console assembly.
9. No indicator lamps illuminate when 9. Replace console assembly.
START or OPTIONS are pressed.
1. Motor (bad bearings). 1. Replace motor assembly.
2. Motor stuck due to prolonged 2. Rotate motor impeller.
non-use.
1. Improper voltage. 1. Check voltage.
2. Motor windings shorted. 2. Replace motor/impeller assembly.
3. Glass or foreign items in pump. 3. Clean and clear blockage.
1. Heater element (open). 1. Replace heater element.
2. Electronic control board defective. 2. Replace control board.
3. Wiring or terminal defective. 3. Repair or replace.
4. Hi-Limit thermostat defective. 4. Replace thermostat.
1. Latch mechanism defective. 1. Replace dispenser.
2. Electronic control board defective. 2. Replace control board.
3. Wiring or terminal defective. 3. Repair or replace.
4. Broken spring(s). 4. Replace dispenser.
5. Defective actuator. 5. Replace dispenser.
1. Drain restricted. 1. Clear restrictions.
2. Electronic control board defective. 2. Replace control board.
3. Defective drain pump. 3. Replace pump.
4. Air lock in drain hose. 4. Make sure hose is attached in proper
position on side of tub.
5. Blocked impeller. 5. Check for blockage, clear.
6. Open windings. 6. Replace pump assembly.
7. Wiring or terminal defective. 7. Repair or replace.
1. Water supply turned off. 1. Turn water supply on.
2. Defective water inlet fill valve. 2. Replace water inlet fill valve.
3. Check fill valve screen for 3. Disassemble and clean screen.
obstructions.
4. Defective float switch. 4. Repair or replace.
5. Electronic control board defective. 5. Replace control board.
6. Wiring or terminal defective. 6. Repair or replace.
7. Float stuck in "UP" position. 7. Clean float.
1. Drain hose (high) loop too low. 1. Repair to proper height.
2. Drain line connected to a floor drain 2. Install air gap at counter top.
not vented.
3. Drain hose not connected to side of 3. Reattach drain hose.
tub.
1. Detergent allowed to stand too long in 1. Instruct customer/user.
dispenser.
2. Dispenser wet when detergent was 2. Instruct customer/user.
added.
3. Detergent cover held closed or blocked 3. Instruct customer/user on proper
by large dishes. loading of dishes.
4. Improper incoming water 4. Incoming water temperature of
temperature to properly dissolve 120°F is required to properly
detergent. dissolve dishwashing detergents.
5. See "Detergent cover will not open."
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