OFF OFF OFF High

Baxi OFF OFF OFF Fault Code

Also written as OFFOFFOFF — same fault.

The Baxi OFF OFF OFF fault code means: your boiler is not receiving any electricity and has completely powered down.. It appears on 23 Baxi models in our database.

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 power

What causes the Baxi OFF OFF OFF fault?

This fault occurs when the boiler's electrical supply is completely cut off, preventing the control system from functioning. The most common reasons are a tripped circuit breaker in your fuse box, a blown internal fuse on the boiler's circuit board, or a failure of the printed circuit board itself.

Typical repair cost £0-120 (including labour)

DIY fix possible

Check if your home has had a power cut or if a fuse has tripped in your main consumer unit.Ensure the boiler's isolation switch (usually a white fused spur near the boiler) is turned on.Check if your prepaid gas or electricity meter has run out of credit.

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Baxi models that show the OFF OFF OFF fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Baxi OFF OFF OFF fault code information on this page is sourced and cross-checked against the official Baxi service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026