Greenstar 27 HE Central Heating only warm

[joewa]

I noticed today the house was a little cold. On checking the central heating the heating is on, pump is flowing but the temperature of the radiators is only luke warm.

Anyone have any ideas?

NB Just noticed the flame cuts out at 61 if that helps.

 

[vernerbongo2]

Hi, don't know what you mean by flames cut out at 61!
I'm assuming you would run it at 70 plus most of the time, I run mine at 70 all the time.
Check room thermostat works and motorised valves work. if you have those?

 

[joewa]

It's 61 on the display on the boiler. I would imagine that is temperature in Celsius. I have reset the boilers max CH temperature and its now running at between 60 and 75. This is still not right as the service manual states it should run at nearer 100!

Room thermostat is an RF one. I've checked it is correctly firing the boiler. How would I check the motorised valves?