Dual heating system problem
I'm new here, and I've had a look around and can't see anything related to my problem exactly.
So I've got a dual heating system, so two thermostats. One upstairs that controls ONLY the upstairs radiators, and one downstairs, that controls ONLY the downstairs radiators. With the thermostats that were originally there, everything worked fine as it should. Since replacing them with Tado, it hasn't worked properly
I have the extension kit installed to the boiler, and as far as i'm aware everything has bee done correctly. I should also mention all my thermostats are wired and not wireless.
So my problem is as follows... When i use the Tado app or do it manually on the thermostat and i set the downstairs heating to come on, the upstairs heating will come on and not the downstairs as it should. When i do the same on the upstairs heating, nothing happens, so it doesn't even do the opposite, as in put the downstairs heating on.
I've spoken to Tado support a couple of times. Once because i was told i had to after i had installed the extension kit, so they could tune some settings i assume? Second time because it wasn't working as it should, and they did say some settings weren't correct, and now this is where i'm at with it.
Any help or suggestions appreciated!