Fisher & Paykel DishDrawer DD60 Service Manual page 49

F3X: Over-Temperature Faults
F30 fault: Invalid Temperature
1 Is the thermistor damaged or disconnected?
2 Measure the resistance of the thermistor ( between pins 1 & 2 of the TEMP connector
on the wash controller). It should be approx 10k Ω at
3 Replace the thermistor. Is the fault still present?
F31 Fault: Over Temperature
4 Is the incoming water temperature too hot, over
5 Check the heating element resistance on the tub faulting. Is the heating element out
of spec? (refer section 2.5)
6 Check the element operation in hardware output mode in diagnostics, fill the tub
with 2 litres (1/2 gallon) of water before switching on the element. Is it working OK?
7 If the fault is still occurring replace the wash controller for the tub faulting.
F4: Heater Plate Fault
1 Do the harness connections at the heater plate show any signs of water damage,
corrosion or arcing? If so replace the damaged harness.
2 Check the resistance of the heating element. Is it outside the spec (refer to section
2.5). If so replace the heating element, does the fault still occur?
3 If the fault is still occurring replace the motor controller.
F5X: Lid Faults
F51: Lid Motor Not Turning/F54: Lid Motor Not Stalling
1 Are there any obstructions within the tub? especially around the edge of the tub
where the lid seals.
Tall utensils placed in the utensil basket can also stop the lid from closing.
Are all the yoke clips securely fastened to the lid?
2 Is the lid system physically damaged or disconnected. Check for foreign objects that
can cause the lid to jam. Check the side securing tabs are not pushed through the
chassis fouling on the lid yokes.
3 Check the resistance of each lid motor, only replace a lid motor if it is open or short
circuit. Did this fix the fault?
4 Do the lids move in both upwards and downwards direction in hardware output
diagnostic test mode. This can be done with the drawer open for visibility.
5 Did this clear the fault and are the lids now operating?
F52: Lid Motor Undercurrent
6 Is the lid motor harness securely and correctly connected? Do the harness
connections at the lid motor show signs of any water damage, corrosion or arcing?
7 Replace the harness. Does this clear the fault?
8 Replace the motor controller.
F7X: Fill Valve Faults
F70: Fill Valve High Current/F71: Fill Valve Low Current
1 Do the harness connections at the fill valve and motor controller show any signs of
water damage, corrosion or arcing. Replace the harness if damaged. Ensure that the
harness is correctly and securely connected. Did this fix the fault?
2 Can you run the fill valve in diagnostic hardware output mode?
3 Replace water valve. Does the fault still occur?
4 Replace the motor controller.
7 FAULT DIAGNOSTICS
25 C
o
185
85 C (
o
(77 F), is it within spec?
o
F) ?
o
Yes No
>>A >>2
>>5 >>3
>>5 >>A
>>A >>2
>>A >>6
>>A >>7
>>A
Yes No
>>A >>2
>>3 >>A
>>A
Yes No
>>A >>2
>>A >>3
>>A >>4
>>A >>5
>>A >>8
>>A >>7
>>A >>8
>>A
Yes No
>>A >>2
>>A >>3
>>4 >>A
>>A
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