Quote:
Originally Posted by Chief Roundup
So you are saying you have 24v at the outdoor unit at the control board? If you measure voltage by putting one lead on the red wire and one lead to the frame or ground you have 24v?
Or are you saying that you have 24v inside but not at the outdoor unit? If you do not have 24 volts to the outdoor unit it will not run and you probably have a bad thermostat wire.
The wire that is connected to Y is your call for cooling if you have nothing there at the outdoor unit, condenser, then there is no signal from the air handler to make the outdoor unit operate.
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The latter is correct. I do not have 24v outside. I think you are correct on a faulty y wire, but I can’t figure out if it’s between the thermostat and control board or between the control board and outside unit (or somehow both)?