High
Lights: Off, Off, Off on Baxi Solo 2

Your boiler is not receiving the signal from your thermostat or programmer to turn on, meaning it thinks it doesn't need to heat your home.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

No Switched Live to boiler. Check Systems Controls and System Wiring.

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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