I have a Gloworm 30ci boiler which flashes an F1 fault and sometimes F4. From what I am told, this boiler does not have an F1 fault...But, it's still flashing F1. 3 times this summer, the boiler has fired up the radiators when that facility was switched off. Any help greatly appreciated.
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ongoing boiler fault
- Thread starter mullens
- Start date
DIYnot Local
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