Radiators turning off etc.

[Deleted User]

Already had the thermostat replaced so its not that.

Either gets boiling hot or freezing cold. Radiators seem to go off at random.

Only way to get them back on is to turn thermostat up to 30 wait for boiler to start up again and then turn back to desired temp.

Any ideas?

macman

Cold al over or just cold at top/bottom?
Airlock?

[Deleted User]

macman wrote: »

Cold al over or just cold at top/bottom?
Airlock?

All over. and this is one in living room where thermostat is.

Mr_Ted

[quote=[Deleted User];64382272]All over. and this is one in living room where thermostat is.[/QUOTE]

Room thermostats work on the actual room temperature not the rad temperature

The rad just supplies the heat to the room:)

You need to check with a thermometer if the room stat is shutting off at the right temperature

If its an analogue room stat the variable on/off is roughly 1 to 2 degrees, if a digital roughly 0.5 degrees

[Deleted User]

Mr_Ted wrote: »

Room thermostats work on the actual room temperature not the rad temperature

The rad just supplies the heat to the room:)

You need to check with a thermometer if the room stat is shutting off at the right temperature

If its an analogue room stat the variable on/off is roughly 1 to 2 degrees, if a digital roughly 0.5 degrees

Thats just it. Its noticeably colder in the room at times.

Its analogue so I guess it might just be the 1-2 degrees. Seems a lot.
Might invest in digital. How much any ideas?

zaax

[quote=[Deleted User];64382272]All over. and this is one in living room where thermostat is.[/QUOTE]

There should not any TVR's on the radiators in the room where the thermostat is - just turn them to max and let the thermostat control the room temperature.

Set all other TVR’s to 1 or 2 (about 60f) – of you want to save on heating bills.