High
Low water pressure light ON on Ferroli Falcon

Your boiler has stopped working because the water pressure inside the system has dropped too low, which is causing it to lock itself to prevent damage.

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

Water pressure below 1 bar or faulty low water pressure switch

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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