Is My Thermostat Broken?

[Deleted User]

Hi 
Our thermostat is on 27.5 and the house is now warm.  On 25 earlier I was freezing.  Anyone know what the problem is or what I need to do?

Gerry1

We're not mindreaders so you need to give a lot more information, e.g. fuel, boiler, radiators, thermostat, TRVs etc.

[Deleted User]

combi boiler gas, lots of radiators all hot, honeywell thermostat, no idea what a trv is. boiler hasn't lost pressure.

Reed_Richards

TRV = Thermostatic Radiator Valve.  If the problem persists I think you will have to call a heating engineer.  25 is a very high setting in the first place so I think your thermostat may have just gone a bit more wrong than it was before.

Gerry1

The boiler and / or the radiators may be too small to deliver sufficient heat to warm the rooms up rapidly enough.  The radiators may need bleeding (are they hot to the top?) or are clogged with sludge (cold at the bottom).

It's probably been cold overnight so it may have taken longer to warm up if the radiators can barely overcome the heat losses.

BTW, this forum doesn't attract many responses because it's for LPG, Oil, Solid & Other Fuels.  Try Energy instead.

Ectophile

Have you got a thermometer to see what the temperature actually is, is the room with the thermostat?

[Deleted User]

Gerry1 said:

The boiler and / or the radiators may be too small to deliver sufficient heat to warm the rooms up rapidly enough.  The radiators may need bleeding (are they hot to the top?) or are clogged with sludge (cold at the bottom).

It's probably been cold overnight so it may have taken longer to warm up if the radiators can barely overcome the heat losses.

BTW, this forum doesn't attract many responses because it's for LPG, Oil, Solid & Other Fuels.  Try Energy instead.

It's been fine up to now - this has only just started in last  couple of months.  The radiators don't appear to need bleeding - were done in January.  It was fine through winter - on 23 (I am a cold person) but now 23 doesn't cut it.  The boiler was replaced 3  years ago (serviced every year).  The radiators seem to be decent sizes 

Gerry1

Beremy said:

Gerry1 said:

The boiler and / or the radiators may be too small to deliver sufficient heat to warm the rooms up rapidly enough.  The radiators may need bleeding (are they hot to the top?) or are clogged with sludge (cold at the bottom).

It's probably been cold overnight so it may have taken longer to warm up if the radiators can barely overcome the heat losses.

BTW, this forum doesn't attract many responses because it's for LPG, Oil, Solid & Other Fuels.  Try Energy instead.

It's been fine up to now - this has only just started in last couple of months.

Timer still set to GMT?

keithgawler

Just checking. Is your thermostat fixed on the wall or free-standing? If the latter then is it picking up a heat source, eg rare sunshine or some other heat source. My BG Hive thermostat needs to be protected from the sun in its location in our open plan lounge/diner.

Reed_Richards

Worse still, has the thermostat accidentally got moved to on top of a radiator?  

[Deleted User]

It's freestanding but it's nowhere near a heat source.  I've just noticed a radiator has started to make continuous noise.  Low level - maybe  a hiss type noise.  That's only just started tonight and the thermostat has needed to be high for days now.