ideal classic boiler fault

[broomers]

hi all , wonerding if you can help me with a problem i hav with my boiler, its an ideal classis ff2-100 its been working fine but recently it s just been contantly working all the time , the porgram is all turned off and the lights are not lit on the control panel but the boiler continues to work.. ive found that its heating the hot water only and the boiler does switch off at certain times but the fan is always running and the pump is running too , it continues to run all night and the control panel is definatly off. im just worried it iwill stop completly and it is wasting energy. i have to shut down the boiler b4 it turns off but as soon as you switch it bk on it starts up again.... any ideas? thanks

[gasman]

Sounds like the cylinder thermostat may have been knocked, and is not touching the cylinder any moor. So it is not telling your boiler to turn off when the water is hot enough. It should be positioned approx 1/3 up on your hot water cylinder inside the airing cupboard. Either that or it has been accidently turned up. It should be set at 60 degree's . Then again it may have just packed up and need replacing. they are cheap enough to replace you can get them from B&Q for around �15-�20.

[broomers]

thanks for your help. will have a look at this... i was told by someone that the control panel was faulty and that i should replace thsi first.. but ill give the thermostat a go.. thanks again.