The main thermostat by the door reads the temperature normally when nothing is operating. If I set it to cooling the room temp stays where it was for a few seconds, then the display flashes off and on a few times then the display goes to 99 F and stays there as long as I am in the cooling mode.
I replaced the unit with a new one and it does the same thing.
Any ideas?
I replaced the unit with a new one and it does the same thing.
Any ideas?
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