Fisher & Paykel DishDrawer DD60 Service Manual page 48

F1: Flood Detected
1 Remove the bottom tub, this will require some force to pull it open, is there water in
the base of the chassis?
2 Was there anything in the tubs which obstructed the lid from closing? like large
utensils?
3 Make sure the lid system is free from obstructions. Check that the lid system is
operating correctly by entering diagnostic hardware output mode and actuating the
lid motors (Ld). If either of the lid motors fails to actuate correctly, check that the side
installation tab is not obstructing the lid yoke. If there are no obstructions, replace the
lid actuator.
4 Did the tub overfill? If so check the fill valve in diagnostic hardware output mode to
ensure it can turn the water supply on and off.
5 Is there any foam in the tub? If there is foam, try and determine the cause, i.e. has
liquid detergent been used, or has the customer spilt rinse aid into the tub. Remove
as much foam as possible from the tub and clear the chassis base of water, does this
clear the fault?
6 Is the motor rotor jammed? can it be turned freely? or is the wash impellor loose on
the motor rotor shaft?
7 Check for other leak sources. Possible leak sites are the lid seal, seals around the
heater and the wash motor, damaged fill or drain hose or a damaged O-ring where
the drain cuff connects to the motor housing. Are any of these damaged or leaking?
8 Remove the excess water from the chassis base, especially around the flood sensor
area and run the product and check for leaks.
9 No water in the chassis base, check for corrosion around the flood sensor and ensure
that the flood sensor is correctly positioned and not touching the chassis base.
10 Replace the main motor controller.
F2X: Motor Faults
1 Is the harness connected correctly?
2 Do the harness connections at the motor and motor controller show signs of water
damage, corrosion or arcing? If so replace the damaged harness. Does this clear the
fault?
3 Check the resistance of the motor coils (8 Ω) 16 Ω phase to phase, are these OK?
F21: Bridge Over Temperature
4 Is the motor rotor free to turn by hand and is not jammed? If it is jammed remove and
check for obstructions, reassemble and test. Does this clear the fault?
F24: Motor Stalled/Stopped/Overload
5 Is the motor rotor clear of foreign objects? If not clear the obstruction and test. Does
this clear the fault?
F25: Motor Loss of Phase
6 Is the motor rotor correctly installed?
7 Replace the motor rotor and run the wash motor in hardware output mode for at
least 10 seconds. Does it operate correctly?
8 Replace the motor stator assembly and then run the motor rotor again in the wash
direction in hardware output mode. Does it now operate correctly?
9 Replace the motor controller.
7 FAULT DIAGNOSTICS
Yes No
>>2 >>9
>>3 >>9
>>A >>4
>>A >>5
>>A >>6
>>A >>7
>>A >>8
>>A >>9
>>A >>10
>>A
Yes No
>>2 >>A
>>A >>3
>>7 >>A
>>A >>9
>>A >>9
>>A >>7
>>A >>8
>>A >>9
>>A
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