High
RED LED on continuously on Potterton Suprima HE

Your boiler has detected a safety concern or internal error and has automatically switched itself off to prevent damage.

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

Indicates a fault condition, possibly related to overheat or external controls

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Search the official register →

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