High
LED 4: 0 (Central Heating) on Ferroli Arean

Your boiler has stopped working because it thinks it is overheating or it cannot correctly read the temperature sensor for your radiators.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

Central heating sensor (34) not connected or boiler temperature too high or boiler thermostat (61) below CH temperature

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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Related fault codes

LED 2View →LED 3View →

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