F08
Hotpoint
Heater relay or heater circuit stuck on/off
Machine fills and may tumble but does not heat; F08 error appears.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Shorted heater relay on PCB, Heater element shorted to earth, Wiring short in heater circuit, Faulty main control board
How to Fix / Troubleshooting
Safety: Unplug the machine. Heating components can retain heat; allow time to cool.
- Insulation test (advanced): Disconnect the heater wires and use a megohmmeter or insulation tester between each heater terminal and earth. Any low resistance indicates an earth fault; replace the heater.
- Visual inspection: Check the heater and wiring for burn marks or melted insulation. Replace damaged parts.
- Check PCB: Access the main control board and inspect the heater relay area for scorching or cracked solder joints. If the relay is visibly damaged or stuck, replace the PCB.
- Do not bypass safety: Never bypass the heater relay or earth connections. If you are unsure, contact a professional technician.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board (PCB)
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