Greenstar 4000 runs almost continually. Not good.

[paulouk]

Many thanks Chuck for your detailed reply. I've not actually changed my complaint, it's really just the addition of information regarding what I would expect (like) to happen.

Your point (a) the coms between controller and boiler seems good as I'm getting a signal level of '7' and the distance between is not great.

(b) I have the controller set to 'OFF' as I thought this would give me the ability to control the heating manually.

(c) The DHW is set to 'OFF' and so is the Pre Heat so don't thing there would be warm rads from DHW side.

(d) There are no Zone valves in my system.

(e) I don't think this is relevant in this case but to be honest the +llRF is a mystery to me as I've not had any previous experience with these.

Although I cannot complain about the installer or the installation, he did not brief me in any great detail and as you suggest it was a summer installation and only relatively recently started using the heating regularly.

Have attached wiring diagram although can't tell if the links are in or out (without opening up the boiler) or if the live from the proposed stat comes in at '3'.

Thank you for your time.

Paul.

 

[Chuck]

Your point (a) the coms between controller and boiler seems good as I'm getting a signal level of '7' and the distance between is not great.

There would be an error code displayed on the thermostat if this were the problem.

(b) I have the controller set to 'OFF' as I thought this would give me the ability to control the heating manually.

No, it means the thermostat won't call for heat unless the the room temperature falls below 5°C, i.e. frost protection mode.

The 'on' mode is for permanent manual control.

If you want to pursue things further yourself, take a look at what the display on the boiler is telling you. Are there any error messages?

Although I cannot complain about the installer or the installation,

You are more forgiving than I would be. The boiler they supplied and installed is not responding correctly to the controls they supplied and fitted. They need to come back and fix it.

Have attached wiring diagram although can't tell if the links are in or out (without opening up the boiler) or if the live from the proposed stat comes in at '3'.

At the moment you system is under warranty. Don't void it by taking the case off. Get the installer to come back and sort it out for you. If they are uncooperative, call Worcester Bosch and get them to intervene.

 

[paulouk]

I've never seen error codes displayed.

Sorry, I meant 'ON' in other words not on 'Auto'.

I will get in touch with the installer and get him to come round and clarify things. Will let you know if anything significant transpires..

Thanks for the warning about the warranty. And thanks for your help and advice.