F7
Worcester Bosch fault code
Worcester Bosch F7: flame detected even though the boiler is switched off
Engineer only
The boiler is sensing a flame when it shouldn't be. This needs an engineer.
What you can safely do
There is nothing you can safely do yourself with this one. Leave the boiler off and book an engineer.
Call a Gas Safe engineer if
- Book a Gas Safe registered engineer. Don't keep resetting it.
Find a Gas Safe engineer near you
Opens the official Gas Safe Register search.
Applies to: Greenstar CDi Classic. Codes can differ between models, so check your manual.