High
29 on Ideal Classic SE15P FF

Your boiler has detected that the fan, which is responsible for safely venting fumes, is spinning but not reporting its speed correctly to the control 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.

What the manual says

Manufacturer manual

Fan keeps turning / no tacho signal

From this model's manual
Verified against the Ideal Classic Se15p Ff installation & service manual, page 55.
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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