High
H21-049 on Ideal Mini HE

Your boiler's fan is failing to start or maintain the correct speed, which prevents the unit from safely venting exhaust gases and heating your home.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

Fan (mod. miniHEC28)

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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