Recent content by Coasterphil

NTC sensors, same as on cars :-) . I'll check them whilst they are working and make a note of the readings and if it gives me aggro again I'll check them again. There appears to be 2 sensors. Hot water sensor and Central heating sensor. According to the parts list they are both exactly the...

No frost protection listed in the wiring diagram unless it uses one of the other temp sensors. It does state in the manual if it is likely to freeze the system should be drained. As for markup, I work in the motor trade and knowbody marks up like the motor trade but I would be very surprised to...

Thanks all for your advice. I just wanted to see if anyone knew if there might be a reason this would come on if it was working correctly. I'll see if/when it happens again. It is still under warrenty (second year) but I did fit it myself so might have aggro trying to get them to look at it...

It doesn't list one in the list of spare parts or on the wiring diagram in the manual. I've had a feel under the boiler just in case of a leak and water getting into the electrics but all is dry.

No, hot water is perfect (although I didn't try running the water when the heating came on by itself). When the heating came on the hot water was not being used. I was just sat watching tv and I heard the heating come on. Very strange. I fogot to say that when the heating came on by itself as...

Can some one help with a little boiler problem I have. Being the middle of summer the roomstat is set so as the heating will not come on and also the boiler switch is set to hot water only. Every now and again it appears that the pump starts up and water circulates through the central...