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I've read through a few past threads regarding wiring a Meross MTS200 but their wires are different to mine so could use some help please.
I am replacing a Honeywell CM907(A) with the Meross. It had only 2 wires (Black and Red) connecting to the Honeywell (I assume Live & Neutral but tbh I don't really have a clue). I think that there's also a green & yellow wire that is connected to a screw on the cavity pattress box (is this an Earth wire?).
I connected the 2 wires to L and N on the new Meross thermostat. (Black to port 1 (N), Red to port 2 (L)). The thermostat has power, and I connected it to the router and phone app without issue. When I turn up the temp setting on the display or via the app, it does click as though the boiler should then fire up and heat the rads, but other than the 'click' nothing happens.
Upstream from the thermostat, I have a Honeywell Heating & Hot water timer control unit. I have set the heating to Continuous on that and wanted to control schedules via the Meross instead.
Pic 1 is old Honeywell thermostat - Someone else disconnected the Red & Black wires so I don't know which ports these were connected to unfortunately
Pic 2 shows a small connector wire that came with the Meross but there is no information what to do with it. Does it need to connect L with COM or similar?
Pic 3 shows the 2 wires in the Meross unit
Pic 4 shows the yellow/green wire
Pic 5 shows the Honeywell Heating/Hot Water timer control next to the boiler
Pic 6 is the Meross booklet
I am replacing a Honeywell CM907(A) with the Meross. It had only 2 wires (Black and Red) connecting to the Honeywell (I assume Live & Neutral but tbh I don't really have a clue). I think that there's also a green & yellow wire that is connected to a screw on the cavity pattress box (is this an Earth wire?).
I connected the 2 wires to L and N on the new Meross thermostat. (Black to port 1 (N), Red to port 2 (L)). The thermostat has power, and I connected it to the router and phone app without issue. When I turn up the temp setting on the display or via the app, it does click as though the boiler should then fire up and heat the rads, but other than the 'click' nothing happens.
Upstream from the thermostat, I have a Honeywell Heating & Hot water timer control unit. I have set the heating to Continuous on that and wanted to control schedules via the Meross instead.
Pic 1 is old Honeywell thermostat - Someone else disconnected the Red & Black wires so I don't know which ports these were connected to unfortunately
Pic 2 shows a small connector wire that came with the Meross but there is no information what to do with it. Does it need to connect L with COM or similar?
Pic 3 shows the 2 wires in the Meross unit
Pic 4 shows the yellow/green wire
Pic 5 shows the Honeywell Heating/Hot Water timer control next to the boiler
Pic 6 is the Meross booklet