b52 °C Low

Potterton b52 °C Fault Code

Also written as B52C — same fault.

The Potterton b52 °C fault code means: your boiler is currently just doing its normal job of heating up your hot water tank.. It appears on 1 Potterton model in our database.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description: Indicative cylinder temperature. O.K. Cylinder being re-heated. Press RESET button to scroll display

DIY fix possible

This is a status message, not a faultPress the RESET button on the control panel to return the display to its default state

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Potterton models that show the b52 °C fault code

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

Source

Potterton b52 °C 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