Heatline Monza 24 boiler is cutting out

Hello Everyone,

I have two-years-old Heatline Monza 24 boiler. It worked well but from last few days, the boiler is cutting out a lot & after this, going into a lockout state while making some Chugging sounds. I   do not know what is wrong with the boiler, as I have faced this type of problem earlier. I need your help on an urgent basis.

Thanks for your expert advice


Hi Ray, your boiler just needs a service, as there could be a problem with accumulation in the vent pipe thus, causing a chocked air tube, a rusted flue or dust to build-up directly on the gas jet. It is advised to clean the jets and burners along with the gas analysis. In case, the problem persists, call an expert boiler engineer and ask him to check the ventilation shaft & disassemble it to look for corrosion and blockages. If required, replace the damaged parts.