Central heating-too hot!

[redant]

I have noticed that the heating appears to be getting too hot. I have looked at the actuator which appears to be working correctly i.e. the slider moves to water when just water is being heated, heating when just heat called for and mid point when both selected. I can only think that the 3 port valve is stuck on hot water and diverting water at the hot water temperature to the radiators. Would this make sense? Any advice would be very much appreciated. Thanks.

REDANT

 

[Billy Bob Bob]

what make combi?or boiler?

 

[redant]

Boiler not combi, Gloworm micron 70FF

 

[Puddle]

actuator by passing?put system on hot water only when cold and check,room thermostat out of calbration or if you mean rads getting to hot when touched,adjust boiler thermostat or that maybe out of calibration

 

[redant]

Many thanks-will try and see if it resolves the problem.