F7
ProCook
Heater Drive Circuit Failure
F7 error appears and the cooker does not heat, though the display works normally.
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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
Open heater triac or transistor, Blown heater fuse on PCB, Broken heater wire, Faulty main PCB
How to Fix / Troubleshooting
Safety first: Unplug the appliance. Heater circuits are high voltage and should only be serviced by qualified persons.
- Check continuity (advanced): With a multimeter and the unit unplugged, test continuity of the main heating element from the PCB connector. An open reading indicates a failed heater.
- Inspect PCB fuses: Some boards have a small fuse in series with the heater. Replace only with the exact same rating if blown.
- Replace parts as needed: If the heater is open, replace the heating element assembly. If the heater is good but F7 persists, replace the main PCB.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Heating Element Assembly
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