High
32 on Saunier Duval Ecosy

Your boiler is struggling because a temperature sensor in the water pipe has stopped working correctly, 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

The heating return thermistor is 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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