I have a 2441TH and it is wired correctly with 5 wires to an electric heat and A/C combo unit. Wires are:
Insteon = Color = Connects to on unit
24COM = Black = Common
24R = Red = 24 VAC
W1 = White = W2
G = Green = GH (unit has GH and GL for high and low fan speeds)
Y1 = Yellow = Y/W1
The unit also has a B connection but that is because this unit comes in models with either electric heat or heat pump and they probably use the same board. I have the electric heat model.
When I turn on Fan Always on the Insteon the fan comes on and stays on, no problem.
When I set it into cooling mode the compressor and fan both come on and it cools, no problem.
When I put it in heating mode the it does not operate and I get the light on the board blinking an error code of "Bad thermostat inputs".
The unit requires W2 + G be energized to produce heat (or Y/W1 + B + G). I disconnected the thermostat, jumpered 24VAC to W2 and G and it produced heat so it works.
I called Insteon and asked if the G circuit is supposed to be energized when the thermostat is calling for heat. At first the techie said no. Then I told him it did when calling for cooling and he put me on hold and came back and said yes, G should energize when heat is called for. That's what I would expect. The techie told me the thermostat was defective.
I checked with a meter and verified that G circuit is NOT energizing when the Insteon calls for heat. It stays at 13 to 17 VAC instead of jumping up to 24 VAC. I put it in Fan Always mode and the fan came on, then I put it in heating mode and it worked, the unit produced heat.
I had a 2nd one so switched it out. Same thing.
Question: Is this a changeable setting on the Insteon, G is energized during heat or not? If so, how do I set it? If not, what can I do?
I know many heating systems need to have G energized during heating to work. Some do not. All the other digital thermostats whose installation instructions I have downloaded have settings for this. I would think that the default would be to energize G just in case it is needed. But I am going to be really surprised if an expensive thermostat like this cannot be setup either way.
Insteon = Color = Connects to on unit
24COM = Black = Common
24R = Red = 24 VAC
W1 = White = W2
G = Green = GH (unit has GH and GL for high and low fan speeds)
Y1 = Yellow = Y/W1
The unit also has a B connection but that is because this unit comes in models with either electric heat or heat pump and they probably use the same board. I have the electric heat model.
When I turn on Fan Always on the Insteon the fan comes on and stays on, no problem.
When I set it into cooling mode the compressor and fan both come on and it cools, no problem.
When I put it in heating mode the it does not operate and I get the light on the board blinking an error code of "Bad thermostat inputs".
The unit requires W2 + G be energized to produce heat (or Y/W1 + B + G). I disconnected the thermostat, jumpered 24VAC to W2 and G and it produced heat so it works.
I called Insteon and asked if the G circuit is supposed to be energized when the thermostat is calling for heat. At first the techie said no. Then I told him it did when calling for cooling and he put me on hold and came back and said yes, G should energize when heat is called for. That's what I would expect. The techie told me the thermostat was defective.
I checked with a meter and verified that G circuit is NOT energizing when the Insteon calls for heat. It stays at 13 to 17 VAC instead of jumping up to 24 VAC. I put it in Fan Always mode and the fan came on, then I put it in heating mode and it worked, the unit produced heat.
I had a 2nd one so switched it out. Same thing.
Question: Is this a changeable setting on the Insteon, G is energized during heat or not? If so, how do I set it? If not, what can I do?
I know many heating systems need to have G energized during heating to work. Some do not. All the other digital thermostats whose installation instructions I have downloaded have settings for this. I would think that the default would be to energize G just in case it is needed. But I am going to be really surprised if an expensive thermostat like this cannot be setup either way.
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