Air handler and outside unit will not shut off by itself. The thermostat is new and changed by a licence hvac. Turns off only by shutting off the breaker.

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Originally Posted by tdenham

Air handler and outside unit will not shut off by itself. The thermostat is new and changed by a licence hvac. Turns off only by shutting off the breaker.

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I would be calling the tech back since it seems the wires are shorted.

Definitely call back the installer, because if you go messing with things, it may give them a reason not to warranty their work.