High
E13 on Remeha Avanta Plus 28c

Your boiler has detected that a safety sensor monitoring the temperature of the exhaust fumes has failed or developed a short circuit, causing the system to shut down for safety.

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

Flue gas temperature sensor error (S5): sensor short circuited

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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