BoilerFaultCodesWhat the manual says
Manufacturer manualPILOT WILL NOT STAY LIT WHEN THE GAS CONTROL VALVE KNOB IS RELEASED
What causes this fault?
This fault occurs when the boiler's safety system fails to detect a steady pilot flame, causing it to shut off the gas supply for safety. The most common reason is a worn-out thermocouple that can no longer generate the small electrical current needed to hold the gas valve open, or a build-up of soot blocking the pilot assembly.
This issue often surfaces during the first cold spell of autumn when a boiler that has been switched off all summer is suddenly forced to work harder.
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 50: no call-out fees, no surprise bills.
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