High
Amber neon on Grant Outdoor Combi 90 Mkii

Your boiler has stopped working because the water pressure in your heating system has dropped too low to operate safely.

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

Boiler low pressure cut-out switch activated. If the heating system water pressure falls below 0.2 bar.

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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