F.61
Gas valve control system fault
The boiler control cannot correctly actuate the gas valve.
What this code means
The boiler control cannot correctly actuate the gas valve.
Possible causes
- Gas-valve wiring short or short to earth
- Gas valve coil fault
- Electronics/PCB fault
Common symptoms
- F.61 displayed
- Boiler may fail to ignite or lock out
Checks to make
- Do not operate internal gas-valve components
- Arrange qualified boiler diagnosis
Safety
- Do not remove the boiler casing or work on gas, combustion, flue or internal electrical components unless appropriately qualified. If gas is suspected, follow the national gas-emergency procedure.
Model notes
Vaillant notes that not every fault code is visible on every product model.