Frigidaire FBD2400KB - 24"" Dishwasher, FBD2400KQ, FBD2400KW - 24"" Dishwasher Service Data Sheet

Page 1

Trouble Shooting Tips

Tub and Door Seal

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

Product Specifications

Separate Circuit..15 amp min.- 20 amp max.

Motor (Amps) ........................................... 1.1

Heater Wattage ....................................... 900

Total Amps (load rated) .........................10.0

Water Supply

Suggested minimum incoming water

temperature ............................. 120°F (49°C)

Pressure (PSI) min./max. ................... 20/120

Connection (NPT) .....................................

/8"

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

................................7.2 U.S. gal., 27.3 liters

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

Personal Injury Hazard

without stretching or bunching. The gasket takes a short turn at the bottom of the tub channel before ending at the channel end wall.

Short Turn

Gasket Cross Section

Mounting Rib

Tub Interior

020905

Exploded View of Wash System

Drain Hose (32" minimum height)

Incoming Water Supply

Nut

Lower Spray Arm/Tower Assembly

Motor Bracket

Sump Retainers (4)

Water Inlet Tube

Water Valve

Sump

Connector Hose and Clamps

Drain Motor

Volute Cover

Soil Director

Filter

Heating Element

The drain hose must have a loop at a

minimum

height of 32 inches

in order to insure proper

drainage.

To remove the main circulation (circ) pump first disconnect the wiring harness connections located at the circ pump’s motor, remove the two screws tha hold the motor bracket, and remove the motor bracket by sliding it away from the sump. The motor and pump can then slide out of the sump.

Pump Assembly

The pump assembly is driven by a synchronous motor. Rotation is in the counterclockwise direction at 3600 RPM. The motor drives a pump which supplies 100 percent filtered water at a rate to approximately 12 GPM.

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 discharge end of the drain pump. The drain hose is attached by a worm gear clamp to the discharge end of the drain pump.

Circulation Motor Assembly

Electrical

Rating.....................................120 Volts, 60Hz

Check the list below each symptom. Repair or replace defective components as encountered.

Symptom. . .Dishwasher will not operate when turned on (wait at least 90 seconds).

1. Fuse (blown or tripped).

2. 120 VAC supply wiring connection faulty.

3. Timer (contacts open or defective)

4. Motor (inoperative).

5. Door switch (open contacts).

6. Door latch not making contact with door switch.

7. Selector switch (open contacts).

Symptom. . .Motor hums but will not start or run.

1. Motor (bad bearings or locked rotor).

2. Motor stuck due to prolonged non-use.

Symptom. . .Motor trips out on internal thermal overload protector.

1. Improper voltage.

2. Motor shaft binding.

3. Motor windings shorted.

4. Glass or foreign items in pump.

Symptom. . .Dishwasher runs but will not heat.

1. Heater element (open).

2. Timer defective.

3. Wiring or terminal defective.

Symptom. . .Dishwasher will not pump out.

1. Drain restricted.

2. Timer contact defective.

3. Defective drain pump.

4. Air lock in drain hose.

5. Blocked impeller.

6. Open windings.

Symptom. . .Dishwasher will not fill with water.

1. Water supply turned off.

2. Defective water inlet fill valve.

3. Check fill valve screen for obstructions.

4. Defective float switch.

5. Timer contact defective.

6. Wiring defective.

7. Float stuck in “UP” position.

Symptom. . .Timer does not advance.

1. Timer motor (stalled or open.)

2. Check timer for power to timer motor.

3. Timer shaft binding to or knob interference with escutcheon.

Symptom. . .Dishwasher water siphons out.

1. Drain hose (high) loop too low--must be a minimum height of 32 inches.

2. Drain line connected to a floor drain not vented. (Install air gap at counter top.)

Page 2

Cycle Selection Options

SERVICE DATA SHEET

P/N: 154799901

Color Code

BK........................ Black R Red

BU...........................Blue VIO Violet

BU-O Blue/Orange W White PK Pink R-Y Red/Yellow

Component Checking

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. The manufacturer or seller

cannot be responsible, nor assume any

liability, for injury or damage of any kind

arising from the use of this Service Data

Sheet.

Notes: 1) Always turn the timer knob clockwise.

2) Possible overshooting of the detent and gear/cam position from previous operation can affect the duration of the first interval. Drain Pump: To energize, turn the timer to the detent labeled HEAVY WASH. This first interval is about 80 seconds of pump out. Fill Valve: Turn the timer to about 213 (labeled ìWATER TESTî in figure 1). There is a detent at thi

s point but there is no indication of it on the console - it is for testing only. This location is the

start of the final rinse. The wash segment begins with an 87 second fill. Note that the detergent dispenser is also powered during the fill. Float: While the fill valve is energized (see above) raising the float should result in power being removed from the fill valve causing it to close. Detergent Follow instructions for energizing the fill valve. The detergent dispenser i

s energized during the next 179 seconds. During the first 87 seconds it runs along with the fill valve, then

Dispenser: for 5 seconds on runs on its own and then for 87 more seconds it runs along with the circulation pump. The detergent door can be expected to open with 40 to 90 seconds of

dispenser power up time. Circ Pump: Turn the timer to the HEAVY WASH detent and then advance about 10 further. This is st

arting location for about 87 seconds of circ pump actuation.

Heater: WARNING! When checking that the element is giving off heat be careful not to touch the heating element inside the tub - it will burn. To check for a f ailed heater remove power and

check the resistance between the two connections. Probes can be inserted in to the back side of the connectors. The heating element changes resistance with temperature but

sho

uld always be between 12 and 21 ohms. To check that it is being energized by the timer, apply power to the unit and turn the timer to 303 . This angular position has a detent, is labeled HEATER TEST in figure 1 but is not labeled on the console. The detent is located at the beginning of an 87 second heating interval within the drying portion of the cycle. It is followed by several other alternating pause a

nd heating 87 second intervals. In all, 5 heating intervals follow the detent.

(

)

(

)

(

)

(

)

(

)

(

)

(

)

(

)

(

)

Wiring Diagram