High
Pressure Gauge (below 0.5 bar) on Baxi Promax Heat

Your boiler has stopped working because the water pressure is too low, often caused by a small leak or recently bled radiators.

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

The boiler will not function. May indicate a leak on the central heating system.

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.

Find a Gas Safe engineer
Search the official register →

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