How much does it cost to fix Baxi error code Low Electrical Supply?

Typical repair cost for the Baxi Low Electrical Supply fault is £120-350 including labour.

Low Electrical Supply High

Baxi Low Electrical Supply Fault Code

Q: What does the Baxi Low Electrical Supply fault code mean?

Your boiler is not receiving enough electricity from the mains supply to operate safely and has shut down as a precaution.

Also written as LOWELECTRICALSUPPLY — same fault.

The Baxi Low Electrical Supply fault code means: your boiler is not receiving enough electricity from the mains supply to operate safely and has shut down as a precaution.. It appears on 3 Baxi models in our database.

Technical description: Incoming Voltage less than 180V.

Typical repair cost £120-350 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Baxi models that show the Low Electrical Supply fault code

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

Source

Baxi Low Electrical Supply 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