BoilerFaultCodesWhat the manual says
Manufacturer manualFan Fault
Shared across the Logic Max Heat range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
What causes this fault?
This fault occurs when the boiler's control system loses communication with the fan or detects that it is not spinning at the required speed. The most common reasons are a mechanical failure of the fan motor itself, a loose connection in the internal wiring, or a fault on the main circuit board that prevents power from reaching the fan.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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All 36 fault codes on the Logic Max Heat
Seeing a different code? Every code this model can display, in one place.