High
134 on Potterton Performa 24i HE

Your boiler is failing to ignite because it cannot detect that gas is flowing into the burner after attempting to start.

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

Elapsed Time - Gas Valve Open Without Gas

From this model's manual
Verified against the Potterton Performa 24i He installation & service manual, page 47.
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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Avoid the next call-out bill

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