High
LED 6: 0 (Central Heating) on Ferroli Arean

Your boiler has detected low water pressure or a faulty internal sensor, causing the heating system to shut down for safety.

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

C.H. sensor (34) short circuit or resistance lower than 500 ohm; C.H. limit thermostat (50) open circuit (pump will run); C.H. water pressure low (114 open circuit)

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 1View →LED 2View →

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