E11
Termet
Gas Supply / Gas Valve Regulation Fault
Heater shows E11, ignition occurs but flame is unstable, may go out with popping noises.
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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
Incorrect gas pressure to Termet heater, Partially blocked gas filter in gas valve, Faulty gas valve modulation coil, Wrong gas type setting on PCB
How to Fix / Troubleshooting
Safety: Gas work must comply with local regulations. If you smell gas, shut off the supply immediately and ventilate the area.
- Check gas cock: Confirm the gas isolation valve is fully open and that other gas appliances operate normally.
- Visual inspection: Inspect the gas valve and its wiring for damage. Do not open the gas valve body.
- Gas type setting: Some Termet models allow configuration for natural gas or LPG. Verify that the setting matches the installed gas type (this is usually done via service menu by a technician).
- Professional testing: A qualified Termet technician should measure inlet and burner pressure, clean or replace the gas filter, and replace the gas valve assembly if modulation is faulty.
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Repair Difficulty
Professional Required
5/5
Required Part
Termet Gas Valve Assembly
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