High
70 on Firebird Envirogreen

Your boiler has stopped circulating water, meaning it cannot heat your home or provide hot water because the internal pump is not working.

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.

What the manual says

Manufacturer manual

Hydraulic alarm flow and Water low is not detected in the hydraulic cycle - Water Pump malfunction or Pump defective

From this model's manual
Verified against the Firebird Envirogreen installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

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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