High
47 on Johnson Starley Warmaflow F80E

Your boiler has stopped working because it cannot detect any information from the water pressure sensor, likely due to a wiring fault or a broken internal part.

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 sensor 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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