High
61 on Alpha E-Tec Plus 10 / 18

Your boiler is struggling to push water around your radiators, likely because there is trapped air in the pipes or a blockage in the system.

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

Restricted CH flow due to air or a circuit restriction

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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