Overheat condition High

Potterton Overheat condition Fault Code

Also written as OVERHEATCONDITION — same fault.

The Potterton Overheat condition fault code means: your boiler has detected that it is getting too hot and has automatically shut itself down to prevent damage, requiring a professional check to ensure it is safe to use again.. It appears on 6 Potterton 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: The LED will go to flashing Red. Requires manual re-setting at the overheat thermostat.
Typical repair cost £120-250 (including labour)

Engineer required

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

Find a Gas Safe engineer

Search the official register for a qualified engineer in your area.

Gas Safe Register →

Potterton models that show the Overheat condition fault code

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

Source

Potterton Overheat condition 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