Room Thermostat comes on and off too regulary

[iceman2010]

I over the last few days and noted that the room thermostat,located in the hall,comes on between every 10-13 minutes and stays on for about 20-23mins and then this cycle constantly repeats throughoout the day.
Room thermostat is a Honeywell T6360 with lamp and is set to 20c. I also have a wall thermometer next to it which reads about the same temp.
When the thermostat fires the boiler the temp on the thermometer is still showing 20c. The heating is 24/7 so as you can imagine it is running about 40mins out of every hour all day!

surely this is not normal operation?

 

[JohnD]

The heating is 24/7

Why?

How far away is the nearest radiator? Does it have a TRV on it? How hot is it?

Do you have a modern modulating boiler?

How many cu m of gas are you using per day? (per the meter readings)

 

[iceman2010]

Why?

How far away is the nearest radiator? Does it have a TRV on it? How hot is it?

Do you have a modern modulating boiler?

How many cu m of gas are you using per day? (per the meter readings)

The house takes long time to heat up so if its switched off overnight it could take 3-4 hours to bring it back up to temperature.

The is a small rad 70x70 about just over 1 meter away, no trv and would says its not too hot and but more than warm. Also the alarm control panel is right next to the termostat if that makes a difference. I have condensing glowworm boiler.

Over the last month, using about 9.5 cu m per day, but before that about 6.7
thanks

 

[Dan Robinson]

Cushnie it to a cm907.

Optimisation will take care of boiler start up time. . There is also a 3 degree offset to allow you to compensate for artificial heat gains.

 

[iceman2010]

Cushnie it to a cm907.

Optimisation will take care of boiler start up time. . There is also a 3 degree offset to allow you to compensate for artificial heat gains.

can this just be a straight swap in terms of wiring?

 

[Dan Robinson]

Usually. . It has been covered here lots of times.