Vaillant F28: Ignition failure on start-up
Safety related: do not keep resettingWhat it means
The boiler failed to light. Gas supply, frozen condensate, electrode or gas valve.
Safe things to try first
- Check gas supply and other appliances.
- Thaw the condensate pipe if frozen.
- Reset once.
When to call an engineer
Repeated F28 needs a Gas Safe engineer to check the gas valve and ignition.
Never remove the boiler cover or work on gas components yourself. It is illegal unless you are Gas Safe registered, and it will void your warranty.
Fix Vaillant F28 today
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