BoilerFaultCodesPotterton 130 Fault Code
The Potterton 130 fault code means: your boiler has detected that it is getting too hot inside, often because something is blocking the flow of heat or a sensor is faulty.. It appears on 1 Potterton model in our database.
Technical description: Flue sensor fault or burner output modulates to maintain temperature set (potential heat exchanger obstruction)
What causes the Potterton 130 fault?
This fault occurs when the boiler's internal components reach a temperature that is dangerously high, triggering a safety shutdown to prevent damage. The most common reason is a buildup of limescale or debris inside the heat exchanger, which restricts water flow and prevents heat from being transferred away from the burner effectively.
This fault often becomes apparent during the first cold snap of winter when the boiler is suddenly required to run at a higher output for longer periods.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Potterton models that show the 130 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Potterton 130 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