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TOPIC: Fisher and Paykel DW920 & DW820 dishwasher Fault Codes

Fisher and Paykel DW920 & DW820 dishwasher Fault Codes 1 year 3 weeks ago #53

  • temich
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Fisher and Paykel Nautilus Dishwasher Error Codes

U1 - Water inlet error:
Fisher and Paykel dishwasher error U1:
The dishwasher fills for 1 minute and if ventilation is not seen in this time, then washes for 1 minute.
If ventilation is still not seen, then it drains and repeats.
If at the end of this repeated period, ventilation is still not seen, then a U1 will occur and the machine will flash U1 and beep until the power button is pressed.

F1 - Flood Fault:
Fisher and Paykel dishwasher error F1:
This occurs when the flood switch is activated by water lifting the float switch in the base pan and the machine will flash F1 and beep and drain until the power is switched off at the wall.

F3 - Over Temperature Fault:
Fisher and Paykel dishwasher error F3:
If the sensor reads a temperature over 90°C, three times at 10 second intervals, the machine will flash F3 and beep until the power is switched off at the wall.

F4 - Temperature Fault:
Fisher and Paykel dishwasher error F4:
The F4 fault means that the dishwasher took too long to heat up. The dishwasher allows 50 minutes after the timer has paused at the end of the allocated heating time. If it still has not reached the sub cycle temperature, it will flash F4 and beep until the power is switched off at the wall.

Drain Pump:
Resistance reading: 135 ohms

Wash Motor:
Resistance Reading: To Test: Measure between Motor Terminals
1 & 2 = 38 ohms + 10%
1 & 5 = 88 ohms + 10%
5 & 2 = 125 ohms + 10%

Heating Element:
Resistance reading 35 ohms

Water Inlet Valve:
Resistance readings: 3.6-4.2K ohms
Last Edit: 1 year 2 days ago by temich.
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