BoilerFaultCodesWhat the manual says
Manufacturer manualPump failure
What causes this fault?
This fault occurs when the boiler's internal pump can no longer push water through your radiators or hot water cylinder. The most common reasons are the pump motor seizing up due to age, or a buildup of black sludge and debris from inside your heating system getting stuck in the moving parts.
This issue is most frequent in autumn when the heating is turned back on for the first time, as the pump can seize up after sitting idle during the summer months.
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.
Avoid the next call-out bill
A cover plan would handle faults like Test2: no call-out fees, no surprise bills.
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