TRV‘s

Auti

Well - I thought it was cold yesterday evening and looked at temps and it was - new thermostat calling for heat but boiler not turning on - looked at boiler and all seemed as normal re lights/codes etc. tried reprogramming thermostat but no joy so went to bed. Got up to 15/16 degrees C in house this morning and still no heating come on. I am going to call electrician who fitted the thermostat to check it and have emailed the Plumber who responded (but I have not heard from since and it has been a few days - other plumber not responded) saying what has happened - starting to not know what to do, all running away from me a bit.

ThisIsWeird

If the lights on your boiler are on as shown in your pic, then it's likely to just be your room stat, which you say is wireless? Most common cause - flat battery!
Could you post a photo of your 'stat, please, and also of the 'stat's receiver?
Don't panic. Sometimes 'things' seem to happen at the same time, but just pure coincidence.

ThisIsWeird

Albermarle said:

FreeBear said:

Albermarle said: One caveat being that if it is not a combi boiler, then you should not turn the boiler temperature down too far, as your hot water will not get hot enough.

With a system or heat only boiler, hot water should take priority and boost the flow temperature accordingly.

I did not know that. I am pretty sure when I turn the boiler ( system)  flow temperature down, the hot water does not seem quite so hot. However I have never done a scientific test.

Yes, that will be the case.
Your boiler is extremely unlikely to have the feature where it can boost or increase the supply temp when DHW is called for; it has one selected output temp, and that's it. So, yes, your boiler being a 'condensing' type has a somewhat limited benefit, as it's unlikely to be anywhere close to 'fully' condensing due to the selected supply temp needing to be in the high 60's to cater for your DHW.
Still much better than a non-cond boiler, tho'.

Auti

Thank you - stressing a bit as getting into realms of unknown. Room stat was fitted 28 feb this year to replace over 30yr old rotary one (hard wired) that stopped working. This one is EPH CP4 and is wireless to a box that is hard wired into the boiler (all lights on box as should be). Am requesting 19 degrees C.

Auti

OK now had reply from plumber who says cannot attend as historically had theft from van a few streets away and wishing me  good luck with finding a plumber. My road is fine, quiet and nice. 

ThisIsWeird

Auti said:

OK now had reply from plumber who says cannot attend as historically had theft from van a few streets away and wishing me  good luck with finding a plumber. My road is fine, quiet and nice. 

Best shot of such a guy :-(

ThisIsWeird

Auti said:

Thank you - stressing a bit as getting into realms of unknown. Room stat was fitted 28 feb this year to replace over 30yr old rotary one (hard wired) that stopped working. This one is EPH CP4 and is wireless to a box that is hard wired into the boiler (all lights on box as should be). Am requesting 19 degrees C.

Ok, the battery symbol ain't on, so I guess we can discount that.

The wireless symbol is on, so I guess that means it's 'talking' to the receiver ok.

The 'flame' symbol is on, so that means it's 'calling for heat' (that's the expression used). The 17.5o reading is presumably your 'actual' current room temp? So how can you tell what the 'target' temp is? You say you have it calling for 19o?

You say the correct lights are showing on the receiver - could we see this, please? I presume the green light comes on when the receiver is 'on' - ie, trying to tell the boiler to come on? And the red (wireless) LED flashes when it's communicating? Tbh, I've had a look at the instructions, and it ain't very clear.

The boiler display shows nothing above the 'burner' and 'radiator' symbols? What does the 'status' display say?

Auti

Agreed re plumber but made me sad grr. One picture of display meanings (I keep all paperwork) and one of hard wired transmitter box in airing cupboard. Found another plumber who Ideal Max boiler certified so theoretically should understand my Ideal boiler will see his response to email. Beginning to think somewhere like Boxt and change boiler but cost concerning.

ThisIsWeird

Auti said:

Agreed re plumber but made me sad grr. One picture of display meanings (I keep all paperwork) and one of hard wired transmitter box in airing cupboard. Found another plumber who Ideal Max boiler certified so theoretically should understand my Ideal boiler :

)

No harm in getting quotes for a new boiler, and then you'll know. Make sure any is Opentherm, as your controls will work with it (once you get them going...)

The 'wireless' light on your receiver - does that flash red at all? And you ACTUAL display on the boiler - is anything showing on there?

Auti

The electrician came, not actual one who fitted thermostat but another one from same company, and he found that it was a sticking solenoid that when thermostat called for heat the hard wired box instructed solenoid to operate a switch that was not going far enough across by a tiny amount. He went and got another one which broke as he stripped the wire so had to go back for another one (nothing ever simple in this house) but now it is working and he is happy and I am as he showed me and explained to me and answered my questions properly - so here‘s hoping.

The new plumber I emailed has responded and will come and have a look tomorrow. I have done some research and he appears to be well known and professional - I am pleased.

Thank you for all your help especially when I start to panic!