Central heating won’t come on when I want it

[barry leeson]

For the last month my oil central heating only comes on sometimes, I’ve checked the water pump and it’s free can anybody give me a couple of checks to do as I have no idea, the fact that it comes on sometimes makes me think it might not be that serious

 

[muggles]

Do you have to reset anything to make it come on?

 

[barry leeson]

No it just comes on with timer and other times it won’t start, iv tried turning thermostat up to see if it will kick in for me but it won’t