High
Lockout light on on Baxi Solo PF

Your boiler has switched itself off because it got too hot, likely triggered by a safety cut-out to prevent damage.

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

This can occur if the boiler has overheated. Reset by turning control knob OFF, wait 10 seconds then turn ON. Check continuity across the overheat thermostat.

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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