room stats

[mutley racers]

Hi chaps, I got a danfoss standaRd room stat. Am not getting any audibel click when turning it up or down, when heating is on, am getting 230v at terminal 4 and . Even when I turn it up and down. Is this correct? As it is not calling for heat at wiring centre. So not getting any heating. Wires are a pickle as well.

 

[mutley racers]

Wiring centre

 

[mutley racers]

Another close to boiler

 

[Barry98]

i can see it now

 

[mutley racers]

Boiler wiring

 

[Barry98]

its a take out and start again to me , bloody sparkys

 

[mutley racers]

But apparently it was working ok. And then the heating would stay on with hot water but couldn't put heating on on its own. So I put new 3 port valve in and now I can get hot water on its own but not heating at all

 

[Ermintrude]

its a take out and start again to me , bloody sparkys

It wasn't a spark it was I! Screwfix had red insulation tape on offer. I would defo strip it all back and re do all connections and clip it all back a little neater.

If its just heating u prob made minor error. Is stat a 3 wire or just live in s/l out?

So when hearing is on does vale engage / but no ignition on boiler? If so no juice getting through micro switch when 3 port swings to hearing only.

Also what boiler is it?

 

[dancinplumba]

View attachment 14732

Boiler wiring

Has this boiler got an Earth connection ? Looks like just pump earth wire ?

 

[dancinplumba]

And it looks like its not heat resistant flex. Time to rewire IMO

 

[mutley racers]

Room stat.

Am wondering if it was just upto temp and so not switching.

 

[Ermintrude]

View attachment 14738

Room stat.

Am wondering if it was just upto temp and so not switching.

Well if u want to check bump that black jumper onto other rouge !

 

[dancinplumba]

Was it hot then ?

 

[dancinplumba]

Is the red live when calling for heat ? Is the black live too ? What have you checked ?

 

[mutley racers]

Yep, am getting 240volts on on both sets of wires. But if I turn stat up or down nothing changes.

Also heating on on programmer is live. But not getting any audible click from stat

 

[mutley racers]

Was warm yes and the clients said it is usually a few degrees out as they have tested it

 

[mutley racers]

Well if u want to check bump that black jumper onto other rouge !

A? What language is the above

 

[Barry98]

Have you swapped stat ?

 

[mountainman]

A? What language is the above

Leccy speak, but plain if wiring plans are not mysterious.

 

[mutley racers]

No, not changed stat. Just the zone valve

 

[dancinplumba]

Where does the black wire from stat go to ?

 

[mutley racers]

I cannot find it? Think in that junction box with all the red tape. But what I thought was it was not live

 

[Barry98]

For sake of a few quid I'd tempted to swap stat to emliminate it

 

[dancinplumba]

Remove red wire from stat. Is black still live ?

 

[Ermintrude]

And it looks like its not heat resistant flex. Time to rewire IMO

The jb's pretty sexy too! But cant u get LSF t&e which is resistant upto 100c??

 

[Ermintrude]

A? What language is the above

Sorry. If u suspect stat has reached set point and thus broken the circuit, connect the two red wires together using the black jumper wire.

 

[Ermintrude]

Sorry. If u suspect stat has reached set point and thus broken the circuit, connect the two red wires together using the black jumper wire.

I'm a junkie, excuse my last post. Thought stat had two red and one black wire. Just and off the wall thought here, the programmer hasn't been set wrongly? Perhaps for a gravity system??

Also the red wire with just tape on end at boiler end could it be demand signal from 3 port? See if its live when htg only engaged on 3port? If so open stat by turning down, is it still live?

You didn't say if 3 port went over to heating and ran pump and there was no call for heat or if nothing at all happened?

 

[mutley racers]

I'm a junkie, excuse my last post. Thought stat had two red and one black wire. Just and off the wall thought here, the programmer hasn't been set wrongly? Perhaps for a gravity system??

Also the red wire with just tape on end at boiler end could it be demand signal from 3 port? See if its live when htg only engaged on 3port? If so open stat by turning down, is it still live?


You didn't say if 3 port went over to heating and ran pump and there was no call for heat or if nothing at all happened?

The 3 port valve did not move at all. No live on the white wire. Also the red with tape on it was live when hot water was. Not heating

 

[mutley racers]

Remove red wire from stat. Is black still live ?

Am not there now but shall when next there.

Any chance someone can explain to me how to read a wiring diagram for a stat as I have been looking on the danfoss site and don't really understand the diagrams

 

[dancinplumba]

The jb's pretty sexy too! But cant u get LSF t&e which is resistant upto 100c??

Is it flex ?