Bit of a longshot, but anyhoo....
Came home to find the heating not on. We've got a Honeywell wireless controller ST9420C and wireless thermostat DTS92E.
The controller was showing 'no signal' and the radiator symbol was flashing. This apparently means low battery on the 'stat.
The thermostat was flashing the wireless signal but not showing the 'low battery' symbol.
I swapped the batteries for a set of rechargables and it initially showed the 'sync' word and after a while it did then show the low battery symbol. So we tried another set of batteries.
It wouldn't connect.
I then did a signal strength test from the installer manual and it said zero, and as a result of that it recommended doing a bind procedure.
Basically, it wouldn't re-bind so I thought I might have to cancel the existing 'bind' and re-do it.
So...I tried that & it doesn't want to do it. Once I reset the bind, the heating started straight away. I guess it is now running autonomously without the thermostat - I seem to remember it has it's own thermostat internally?
So now we have a thermostat that won't connect at all to the controller. I have tried the bind procedure about 50 times now and it doesn't want any of it?
Any ideas? Is the thermostat borked? I won't be happy if it is as it's only a yr or so old & a new one is about £75.
Just seems to be one thing after another at the moment. I just want an evening when I can come home and not have something leaking, sticking, breaking, not connecting....!
I thought that looking online there might be some other poor souls who have had this issue but I can't find anything about it. Not really expecting it, but any help would be massively appreciated!