F62
Protherm Gas Valve Shutoff Timing Fault

F62 displayed, gas valve relay timing or de-energization fault

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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

Sticking gas valve, Slow or welded relay contacts, PCB timing circuit fault, Incorrect wiring modifications

How to Fix / Troubleshooting

Safety first: Isolate gas and power immediately. This fault can indicate unsafe gas valve behavior.

  • Replace gas valve: If the valve does not close promptly when power is removed, replace it.
  • Replace PCB: If the relay contacts are welded or timing is incorrect, replace the main PCB.
  • Check wiring: Ensure no unauthorized modifications have been made to gas valve wiring.

Warning: F62 is a critical safety fault; only qualified gas technicians should handle it.

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Repair Difficulty

Professional Required 5/5

Required Part

Gas Valve Assembly
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