Worcester Boiler not heating - possible causes?

[Kiwi79]

Hi,

Sitting in a cold house as the combi seems to not be working properly as of this evening. Blue power light is on and if you run a hot tap it fires up but central heating doesn't seem to be on at all. Doesn't matter what number the dial is on. Any first thoughts on what this might be?

[essayer]

Knackered room stat?

[Kiwi79]

TBH we've only been here a couple of months and "I think" I have been using the temp control on the actual boiler to adjust the heating. There is a radio controlled Salus programable thing attached to the wall in another room. Is this also the thermostat or is there usually one on the actual boiler to adjust?

[PRTVR]

First thing I would do is change the batteries in the stat, the solus unit, then download the manual for it, a picture would be handy or model number of the room stat.

[Rickyy]

What model is it?

If its a Junior or Si Greenstar, press and hold the spanner button until it lights up.

If its a CDI Greenstar, do the same but with the chimney sweep button.

This will put the boiler into service mode and should run the heating flat out for 15 minutes. If the rads do indeed heat up, your problem probably lies with external controls rather than the boiler itself.

[Kiwi79]

Update: It's a Salus 620WBC and the good lady has figured out it was on frost mode on some such. The Salus controller is the most illogical, annoying to use device known to man. Have downloaded the manual and currently looking at Youtube vids to see if we can get the thing to do what we want.

It seems you can set the temp on the radio controlled thermostat but also the boiler - which one is actually in charge? I set it to 21 on the thermostat but say choose 3 on the boiler - surely this won't end up at the same temp?

[Rickyy]

One on the boiler controls how hot the radiators get.

Room stat controls room temp and switches off the heating when desired temp is reached.

[Nickbrapp]

Mine had been getting flame fail for a while, the heating stat click on and then nothing happens, you have to reset the boiler for it sort it self out.

The good old turn it off and back on again