I’m sure this is a dumb question, but I’m not very electrically inclined. I have an old Drayton thermostat (physical dial) that I’m trying to replace with one of these Moes ZHT-006 devices. My current thermostat has three wires: live (red), neutral (blue) and something it calls “Control” (yellow). The instructions with the Moes are unclear about what I do with the yellow wire. This is the diagram:
I’m using it for a gas boiler, to turn on and off the heat, so I’m suppose to use the GC (third) configuration. I can wire the live and neutral, and I tried the third wire in both 1 and 2, but the boiler doesn’t seem to turn on. What am I doing wrong?
The good news is I figured out how to get the boiler to work: Live goes into 4, neutral goes into 3, “control” goes to 2 and then run a patch wire from 4 to 1.
The bad news is that, although the thermostat can connect to ZHA, there are no controls whatsoever. I bought it because it was “confirmed working with” ZHA. I can’t seem to set the temp, turn it on or off, or anything…
Just in case anyone is paying attention to this thread, I found a quirk (from another thread here) that seems to get it working, with some ability to control the thermostat in HA. I’m not sure if this is on track to get merged into the official repo. I don’t see a pull request for it yet.
So, several flavours of the device (sold under the same name) seem to be supported in ZHA, but it looks like there are other flavours that aren’t yet.
This thermostat does not do power tracking, as far as I can see. It is, however, supported now on mainstream ZHA. I have since switched to a new HA server and didn’t install any third-party quirks, and the heating worked when I checked it last week during a particularly chilly morning.
Hey Eamonn, basically what you’re saying is you’ve done a ‘switch live’ rather than the neutral it shows in the diagram? In my case the black wire in the image is my ‘switch’ live.
First of all, I’m not an electrician and don’t trust me at all for any advice. Second, I am using the “GC” version above, and you seem to be talking about the “GA” version?
If in doubt, please get an electrician or heating engineer to install it for you, and get it working manually. It can be operated that way. Then try to connect it Zigbee/HA? That’s what I would recommend.
To be honest, even though I got it working, I don’t think I’d buy this thermostat again. It seems to be only marginally Zigbee compliant and the chipset seems to change depending on what day of the week it was manufacturered on… It works for me without any quirks, but seems to require a quirk for other people.
