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TOPIC: Fisher and Paykel Dishwasher Dishdrawer Fault Codes

Fisher and Paykel Dishwasher Dishdrawer Fault Codes 1 year 2 months ago #54

  • temich
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F1 - Flood Error:
Fisher and Paykel dishdrawer F1 error indicates that the flood switch has been activated.
Possible Causes:
· A leak has occurred in the base of the dishwasher.
· The fill valve has failed open.
· The flood switch is faulty.
· Excessive water has been added to a wash sub cycle, indicating leaking seal or siphoning.

F2 - Stuck Motor Error:
Fisher and Paykel dishdrawer error F2 indicates that the motor is jammed or not turning.
Possible Causes:
· Foreign matter has jammed the motor.
· The motor drive electronics or power supply have failed.
· The rotor is faulty or missing.
· The hall sensor is faulty or missing.

F3 - Water Overheat Error:
Fisher and Paykel dishdrawer error F3 indicates that the water temperature in the dishwasher is greater than 80°C.
Possible Causes:
· The element has stuck on.
· The temperature sensor has failed.
· The electronics ADC has failed.
· The incoming water temperature is greater than 80°C.

F4 - Heating Error:
Fisher and Paykel dishdrawer error F4 indicates that the water was not heated.
Possible Causes:
· The element is not connected.
· The element has gone open circuit.
· Temperature sensor or electronics ADC has failed.

F6 - Communications Baud Rate Error:
Fisher and Paykel dishdrawer error F6 indicates a Communications Baud rate error.
Possible Causes:
· The motor control micro has communications set at an incorrect baud rate.
· Communication echo bytes are consistently incorrect (perhaps due to noise).
· External master device has incorrect baud rate.

F7 - Communications Time Out Error:
Fisher and Paykel dishdrawer error F7 indicates a communication time out error.
Possible Causes:
· The motor control micro has crashed and is not responding to communications requests.
· The hardware communications link from console to motor micro has broken.
· An external device is holding the communications line low.

F8 - RAM Fault Error:
Fisher and Paykel dishdrawer error F8 indicates that the electronic controller has RAM fault.
Possible Causes:
· The electronic controller has RAM fault.

U1 - Water Fill Error:
Fisher and Paykel dishdrawer error U1 indicates a fill fault, the motor has not primed after a given time.
Possible Causes:
· The water supply is not turned on.
· The machine is siphoning.
· The spray arm is not in place.
· Excessive foaming.
· The fill valve has failed closed.
· The machine is set to 'HP' on a low pressure water supply.

U2 - Tub Open Error:
Fisher and Paykel dishdrawer error U2 indicates that the tub has not been closed.
Possible Causes:
· The drawer has been forced open during a wash cycle.
· The drawer micro-switch has failed.
· The exhaust valve has failed open-circuit.

U3 - Fill Time Too Short Error:
Fisher and Paykel dishdrawer error U3 indicates time to fill was too short, indicating water was still in the tub.
Possible Causes:
· Drain pump is blocked.
· Drain hose is blocked.
· Spray-arm or rotor not turning freely.
· Motor electronics have failed.
· Machine set to 'LP' on a high pressure water supply.
Last Edit: 1 year 1 month ago by temich.
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