Boiler/pump runs all the time

[mjordan]

I have a Glowworm Energysaver Combi 2 that seems to run all the time even when the heating or hot water are not being called for. Any ideas please? Thanks Mark

 

[Alpha man]

Have you got the heating turned off via the clock/roomstat, and not the boiler stat just turned zero,

Are any hw taps drippng fast??,

If the pump is constantly run, which of the pipes of the boiler are warm/hot?

 

[Blackcatgas]

Pre heat function on?

 

[beneyresgas]

sentral heating sensor faulty sounds like its trying to disperse the heat, check resistance on thermistors should be around 14700 ohms at 20 degress