BoilerFaultCodesWhat the manual says
Manufacturer manualIndicates if the mains power is illuminated/available inside the appliance.
What causes this fault?
This issue occurs when the electrical current fails to reach the boiler's control system, either due to a tripped switch in your home's fuse box or a blown fuse inside the appliance itself. It is often caused by a sudden power surge or a failing internal component that has caused the circuit to break for safety.
This fault is more frequent during storm season, as lightning strikes or local power grid fluctuations are more likely to blow the boiler's internal fuses.
DIY fix possible
Check that the boiler's power switch is turned onCheck your home’s main fuse box for a tripped circuit breakerEnsure the fused spur switch near the boiler is turned on
Avoid the next call-out bill
A cover plan would handle faults like Orange 'Mains' light: no call-out fees, no surprise bills.
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