High
Burner malfunction indicator on Ideal Icos

Your boiler has stopped running for safety reasons because it failed to light or stay lit during operation.

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

Visual indicator on control panel signaling a burner fault or lockout condition.

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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