Trying to install new thermostat
I'm completely lost here. Why aren't these things standardized??
Anyway, I don't know my system type. I know my airhandler is a Goodman ARUF.
The current thermostat:
E - Brown
Y - Yellow
O - Orange
W2 - White
R - Red
G - Green
C & B are un-used.
There's a blue wire tucked back into the wall.
The thermostat I'm looking at has:
W, Y, G, B, O, Rc, Rh, and C. The R's are jumpered together.
For this, does W2 just go into the new W? And then I'm missing a slot for the E wire.
And I've still got that mystery blue wire in the wall hole.
Can anyone help out? Or at least point me to figuring out my AC/Heat setup, a tstat that works with it, etc.
Thank you all in advance.
Sounds like you have a heat pump with back up elements and the new stat isn't compatable.
Post brand and model number of new thermostat.
That thermostat is not compatible with heat pumps that have aux heat.
The W has to be jumpered to the Y. To make the heat pump run in heat mode. So you would not have aux heat when you need it.
Look for a thermostat that is listed as for use on heat pumps with aux heat.
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