Code 8 marks the evaporator sensor resistance as lower than its normal range.
Model compatibility: Fisher & Paykel reuses codes across series and model years, so 8 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
The evaporator sensor resistance is below 660 ohms, outside the normal range.
The control raises code 8 once the evaporator sensor drops below 660 ohms. Code 7 is its high-resistance partner, and both follow an identical repair order in the service manual.
Repair order
The technician examines how the sensor is wired in at the power module.
The technician then fits a new sensor.
Common questions
Is the evaporator overheating? Nothing in the manual says that; it describes only a sensor resistance outside the expected span.
Can an owner test the sensor? The thermistor table lists sample resistances (the 25 degree C row reads 2.186K ohms and the 0 degree C row 6.000K ohms), but taking such a measurement needs the sensor unplugged from the power module. That counts as service work.
Reading sensor temperatures
A diagnostic mode lets technicians see sensor temperatures on the display. To start it, hold MODE together with the temperature UP button; it ends by itself after 5 minutes if left alone. Door alarms are disabled while it runs, according to the manual, so regard it as a service tool.
Seeing code 2 as well
Code 2 belongs to the same list and means the two previous defrosts stopped early, at the 30 minute mark. When both numbers show, give the technician both.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Fisher & Paykel appliance?
Book a specialist visit for a clear estimate and approval before any repair.
