Medium
AL 42 on Sime Giulia Combi 30

One of the buttons on your boiler's control panel has become stuck or is malfunctioning, preventing you from changing settings.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Button fault

From this model's manual
Verified against the Sime Giulia Combi 30 installation & service manual, page 46.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Carefully check each button on the control panel to see if any are physically stuck in the pushed-in position.Gently press and release each button several times to try and free them.Restart the boiler by turning the power off at the fused spur and back on again after 30 seconds.

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Related fault codes

AL 40View →AL 41View →

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