High
On On On On on Potterton Promax FSB 30HE

Your boiler has detected that water is failing to drain away properly and has shut itself down to prevent internal flooding.

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

Condensate pump level switch activated for longer than 3 minutes - boiler locks out.

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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