Frigidaire FDB221RFR3 Wiring Diagram

Exploded View of Wash System

	Nozzle	Drain Hose
	Funnel
	Nut
	Funnel Base
	Center Spray Arm	Spray Arm
	Lower Spray Arm
		Support

Glass Trap

		Heating
		Element
		Filter
	Motor Bracket	Soil Director
	Seal	Volute Cover
	Check Ball
	Circulation Motor	Drain Motor
	Impeller
	Barrel Rear
	Macerator	Delivery Tube
	Barrel Front
	Water Inlet Tube	Connector Hose

Sump

Water Valve

Impeller Screw

Incoming Water Supply

Pump Assembly

The pump assembly is driven by a 1/12 HP, shaded pole motor. Rotation is in the counterclockwise direction at 3100 to 3200 RPM. The motor drives a pump which supplies 100 percent filtered water at a rate to approximately 12 GPM to one spray arm at a time. The spray arm’s operation is alternated by small “pauses” of the motor during the wash cycle.

Draining is accomplished by using a small separate synchronous drain pump mounted to the side of the sump. The drain pump is connected to the main pump by a small rubber hose. The drain check valve is located at the entrance to the drain pump. The drain hose is attached by a worm gear clamp to the discharge of the drain pump. The drain is then routed up the side of the dishwasher and attached to the side of the tub. This drain loop insures that an air pocket cannot form near the drain pump and cause the pump to

air lock. The drain loop on the side of the tub must be kept in place after servicing.

The main pump can easily be removed by disconnecting the upper spray arm supply tube, the drain pump connector hose, and the wiring harness connections made at the circulation motor and the water heat thermostats located on the bottom of the pump.

Once the pump assembly is removed from the dishwasher, the motor/impeller assembly can be removed from the sump by taking out the three

(3) T-20 Torx head screws from the aluminum motor bracket and then the three (3) T-20 Torx head screws from the volute cover. Using a large flat head screwdriver inserted between the impeller screw and the sump’s volute, the motor/ impeller assembly can be gently pried out of the sump. Use the screwdriver as a lever.

900 Watt Heater

Refer to the cycle chart on the reverse side to	Voltage checks of the heater should be made
determine when the heater is on during the wash	with the timer set in the main wash.
cycle. The heater cycles ON and OFF for brief
periods during the drying cycle.

Standard Dry Air Flow	Power Dry Air Flow
When the control advances to the “dry” portion of	The Power Dry configuration is the same as the
the cycle, a linear actuator retracts a valve, which	Standard except it has a cross flow blower located
opens a vent path through the console into the	in the air discharge path. The blower assists the
kitchen.This venting method eliminates	heating element in producing power to drive the
discharging heated moisture into the motor	moist air out of the dishwasher.
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
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
The detergent and rinse aid dispenser is a one	•	remove the six screws,
piece component consisting of a molded	•	remove the dispenser,
detergent cup and a built-in rinse aid dispenser.	•	replace and reinstall screws,
The detergent cup has a spring loaded cover and	•	rewire actuator.

the rinse aid dispenser has a removable cover.

To replace actuator:

Liquid rinse aid is added to the dispenser up to the fill line indicator. The amount of rinse aid released can be adjusted by turning the arrow indicator from one, being the least amount, to four, being the greatest amount.

To replace dispenser:

•shut off electricity to dishwasher,

•remove outer door panel assembly,

•disconnect wiring to the actuator,

•shut off electricity to dishwasher,

•disconnect wiring to the actuator,

•place a flat head screwdriver under the actuator body and between the dispenser housing and terminal side, twist and lift up on the actuator being careful not to damage the retainer snap-fits,

•replace with new actuator by pressing into place,

•rewire actuator.

Tub and Door Seal

The door seal is pressed into the tub channel for	without stretching or bunching. The gasket takes
an interference fit. Center the gasket (marked on	a short turn at the bottom of the tub channel
back) at the tub top center and press in place	before ending at the channel end wall.

Gasket Cross Section

Mounting

Rib

Tub

Interior

Short Turn

Product Specifications

Electrical
Rating ..................................	120 Volts, 60Hz
Separate Circuit..15 amp min.- 20 amp max.
Motor (HP) .................................................	1/12
Motor (Amps) ...........................................	3.4
Heater Wattage .......................................	900
Total Amps (load rated) .........................	11.0
TempAssure (some models) ........	117°F±5°F
(47°C±3°C) [with outer door in place]
TempBoost (some models) ......	127°F (53°C)
Heated Wash/Heated Rinse
Hi-Limit Thermostat ..................	200°F (93°C)

Water Supply

Suggested minimum incoming water

temperature ..............................	120°F (49°C)
Pressure (PSI) min./max. ...................	20/120
Connection (NPT) ......................................	3/8"

Consumption (Normal Cycle) ........................

......... 6.0 U.S. gal., 5.0 Imp. gal., 22.7 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

Always disconnect the dishwasher from the electrical power source before adjusting or replacing components.

Symptom	Check the Following		Remedy
Dishwasher will not operate when	1. Fuse (blown or tripped).		1.	Replace fuse or reset breaker.
turned on (wait at least 90	2. 120 VAC supply wiring connection		2.	Repair or replace wire fasteners at
seconds).		faulty.		dishwasher junction box.
	3. Timer (contacts open or defective)		3. Replace timer.
	4.	Motor (inoperative, check	4.	Replace motor/impeller assembly.
		resistances).
	5.	Door switch (open contacts).	5.	Replace door switch.
	6.	Door latch not making contact with	6.	Replace latch assembly.
		door switch.
	7.	Selector switch (open contacts).	7.	Replace selector switch.
Motor hums but will not start or	1. Motor (bad bearings or locked		1.	Replace motor.
run.		rotor).	2.	Rotate motor fan or impeller.
	2.	Motor stuck due to prolonged
		non-use.
Motor trips out on internal thermal	1. Improper voltage.		1.	Check voltage.
overload protector.	2. Seal faces binding.		2.	Rotate motor fan or impeller, or
				replace.
	3.	Motor shaft binding.	3.	Clear blockage or replace.
	4.	Motor windings shorted.	4.	Replace motor/impeller assembly.
	5.	Glass or foreign items in pump.	5.	Clean and clear blockage.
Dishwasher runs but will not heat.	1. Heater element (open).		1.	Replace heater element.
	2.	Timer defective.	2.	Replace timer.
	3.	Wiring or terminal defective.	3.	Repair or replace.
	4.	Hi-limit thermostat defective.	4.	Replace thermostat.
Detergent cover will not latch or	1. Latch mechanism defective.		1.	Replace dispenser.
open.	2. Timer contact defective.		2.	Replace timer.
	3.	Wiring or terminal defective.	3.	Repair or replace.
	4.	Broken spring(s).	4.	Replace dispenser.
	5.	Defective actuator.	5.	Replace actuator.
Dishwasher will not pump out.	1. Drain restricted.		1.	Clear restrictions.
	2.	Timer contact defective.	2.	Replace timer.
	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 windings.
Dishwasher will not fill with water.	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.	Timer contact defective.	5.	Replace timer.
	6.	Wiring defective.	6.	Repair or replace.
	7.	Float stuck in “UP” position.	7.	Clean float.
Timer does not advance.	1. Timer motor (stalled or open.)		1.	Replace timer.
	2.	Check timer for power to timer	2.	Repair or replace timer.
		motor.	3.	Repair or adjust.
	3.	Timer shaft binding to or knob
		interference with escutcheon.	4.	Replace or adjust position of
	4.	TempBoost thermostat defective.		thermostat.
Dishwasher water siphons out.	1. Drain hose (high) loop too low.		1.	Repair to proper height.
	2.	Drain line connected to a floor	2.	Install air gap at counter top.
		drain not vented.
	3.	Drain hose not connected to side	3.	Reattach drain hose.
		of tub.
Detergent left in dispenser.	1. Detergent allowed to stand too		1.	Instruct customer/user.
		long in dispenser.
	2.	Dispenser wet when detergent was	2.	Instruct customer/user.
		added.	3.	Instruct customer/user on proper
	3.	Detergent cover held closed or
		blocked by large dishes.		loading of dishes.
	4.	Improper incoming water	4.	Incoming water temperature of 120°F
		temperature to properly dissolve		is required to properly dissolve
		detergent.		dishwashing detergents.
	5.	See "Detergent cover will not
		open."

970303 (MECH)