C Low
Your boiler is working exactly as it should and has simply paused because the water has reached the target temperature you set.
Technical description: The boiler has a call for central heating but the appliance has reached the desired temperature set on the boiler
Typical repair cost: £0 (including labour)
DIY fix possible
Check that your room thermostat is turned up high enough to demand heatWait for the boiler to cool down slightly, at which point the 'C' code will disappear and the boiler will fire up againEnsure your radiator valves are open to allow the heat to move away from the boiler
Protect yourself from future repair bills
A boiler cover plan would cover faults like C — no call-out fees, no surprises.
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