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Control Board Troubleshooting
To avoid risk of electrical shock that can cause death or severe personal injury, disconnect unit from power before
servicing unless tests require power. Discharge capacitors through a 10,000-ohm resistor before handling. Wires
removed during disassembly must be replaced on correct terminals to ensure proper grounding and polarization.
3. Release the refrigerator door light switch.
4. The control will display Fd to confirm entry into the Forced Defrost Mode.
5. Entry is confirmed by pressing the Refrigerator Down
Defrost Mode.
Note: All control functions will be turned off (Compressor, Defrost, Evaporator Fan, the damper will
remain in its current position).
6. The control will default to the short run period test as shown here.
Note: You can toggle between the (S)hort and (L)ong test mode by pressing the Refrigerator UP
Long Test mode is used for factory test and should not be used in the field.
7. Once the desired mode is displayed, confirm the forced defrost by pressing the Refrigerator
down Key once. The defrost will begin immediately and the display will return to a normal
operating display with set point values.
8. Close the Refrigerator door(s). You are in the defrost mode.
Note: Forced Defrost mode can be exited at any time prior to step 7 by closing the Refrigerator Door(s).
Service Test Mode:
The service test functions are performed using the refrigerator display and keypad. Enter the Service Test
Mode by performing the following sequence of events:
1. Hold the refrigerator door light switch closed.
2. Press the Refrigerator Temperature Up
Note: The 3 Keystrokes must be done consecutively and within 10 seconds.
3. Release the refrigerator door light switch.
4. The control will display SE to confirm entry into the service mode.
5. Entry to the Service Menu is confirmed by pressing the Refrigerator Up
6. The control will display its software version for 3 seconds.
7. Following the software revision display the freezer display will read the first test number in the
diagnostic tree. The refrigerator display will be blank.
Note: All control functions will be turned off (Compressor, Defrost, Evaporator Fan, the damper will
remain in its current position).
8. You are now in the SERVICES TEST operational mode and may use the diagnostic tests.
The Service Test Mode can be exited at any time by closing the Refrigerator Door(s).
16026983
!
WARNING
Freezer
F
Freezer
Refrigerator
Freezer
Freezer
4
keypad 3 times consecutively.
Freezer
Refrigerator
S
Freezer
Refrigerator
2
Freezer
Refrigerator
1
4
Refrigerator
key once more. The unit is off and in the
S
Refrigerator
L
Refrigerator
4
E
5
Key.
key once more.
February 2006
© 2006 Maytag Services
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