Low
42 on Sime Murelle Advanced HE MkII Combi

Your boiler has detected an issue with one of the control buttons on the front panel, which may temporarily prevent you from changing settings.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Button fault

From this model's manual
Verified against the Sime/Sime Murelle Advanced He Mkii Combi installation & service manual.
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

Check if any of the control buttons on the front panel are physically stuck or jammed down.Turn the boiler off at the fused spur or power switch.Wait for 60 seconds to allow the system to fully reset, then switch it back on.

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Related fault codes

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All 52 fault codes on the Murelle Advanced HE MkII Combi

Seeing a different code? Every code this model can display, in one place.

02030405060708091011121314151828374041436272818396ALL 02ALL 03ALL 04ALL 05ALL 06ALL 07ALL 08ALL 09ALL 10ALL 11ALL 12ALL 13ALL 14ALL 15ALL 18ALL 28ALL 37ALL 40ALL 41ALL 42ALL 43ALL 62ALL 72ALL 81ALL 83ALL 96

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