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My boiler is about 10 to 12 years old. Due to louder noise, I have removed the fan assembly from my boiler and cleaned the impellers and body. Does anyone know if I can grease the motor bearings? Any other advice how to grease it would be appreciated.

I have 2 problems. The first one is when I press down the gas valve control, the fan is at full speed, but after 10s, the pilot light does not come on. However, if I remove the combustion chamber front cover (i.e. the burners can be seen), and repeat the above procedure, the pilot light comes...

I’m a beginner on boilers. Before I drained down the boiler, I had DHW. I had the problem of over-pressure on the central heating reaching 2.5 bar after about 8 mins of switching on, which caused water to flow out of the external flow pipe. Therefore, I drained down the boiler and...