How much does it cost to fix Potterton error code Reversed Polarity?

Typical repair cost for the Potterton Reversed Polarity fault is £90-150 including labour.

Reversed Polarity High

Potterton Reversed Polarity Fault Code

Q: What does the Potterton Reversed Polarity fault code mean?

Your boiler has detected that the electrical supply wires have been connected in the wrong order, which means it cannot safely operate until the wiring is corrected.

Also written as REVERSEDPOLARITY — same fault.

The Potterton Reversed Polarity fault code means: your boiler has detected that the electrical supply wires have been connected in the wrong order, which means it cannot safely operate until the wiring is corrected.. It appears on 2 Potterton models in our database.

Technical description: Indicator lamp 'Off' - aids electrical commissioning. If 'On', indicates wiring error.

Typical repair cost £90-150 (including labour)

Engineer required

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

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Potterton models that show the Reversed Polarity fault code

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

Source

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

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