Underfloor heating and salus rt500rf wireless stat

Joined
7 Nov 2021
Messages
3
Reaction score
0
Country
United Kingdom
Help needed. Just brought my new house in the summer. Never needed the heating on until this week but the kitchen is an extension and tiled floor so feeling a bit frosty now.

The house is all GCH but the kitchen is underfloor.
When we moved in there were 3 thermostats. One is the main house radiators. The second is the rt500rf and the 3rd was the remnants of a stat backplate in the kitchen itself. With just a T&E live and neutral terminated but no control mechanism.
I have since replaced it with a Honeywell dial stat terminals 1 and 3. When i turn it up i can hear the contact kick in at the underfloor controls. But theres nothing happening.

Today after some basic disassembly i have found the feed indeed goes to the contact then off to a salus receiver. Realising this was what the 2nd stat was for i have been checking this forum and seen similar problems.

I have now got to the point that the red power light is on the receiver and when i turn the temp up on the stat i get the flame symbols and green light on the receiver. But the boiler doesn't kick in at all. I presume the jumpers are ok as they look a bit random to the untrained eye.

But this extra stat cable that i have on a Honeywell at the moment is also confusing the hell out of me. It seems necessary in its current wiring due to the contact being fed from the switch line and then the salus receiver from there.

Heres a pic if it helps anyone understand
 

Attachments

  • PXL_20211107_162528230.jpg
    PXL_20211107_162528230.jpg
    338.9 KB · Views: 42
Sponsored Links
Possibly a failed / stuck motorised valve, as per Exedon, need more photos.
 
Sponsored Links
If anyone want me to single out cables and re take the pic that's no problem
 

Attachments

  • PXL_20211108_094054496.jpg
    PXL_20211108_094054496.jpg
    156 KB · Views: 29
  • PXL_20211108_094132435.jpg
    PXL_20211108_094132435.jpg
    294.8 KB · Views: 38
  • PXL_20211108_094140303.jpg
    PXL_20211108_094140303.jpg
    363.4 KB · Views: 39
  • PXL_20211108_094158442.jpg
    PXL_20211108_094158442.jpg
    232.2 KB · Views: 34
  • PXL_20211108_094208982.jpg
    PXL_20211108_094208982.jpg
    316.8 KB · Views: 36
  • PXL_20211108_094224473.jpg
    PXL_20211108_094224473.jpg
    236.3 KB · Views: 32
  • PXL_20211108_094259255.jpg
    PXL_20211108_094259255.jpg
    337.5 KB · Views: 39

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Back
Top