Have HVAC Questions? Ask an HVAC Expert for Answers
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Check the low voltage wiring at the contactor and connections out at the unit, if you have a bad low voltage connection that will keep dropping out the contactor causing that issue. Often a thermostat wire that is wire nutted is the issue as the connections go bad.
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Oh Ok you likely have the pin base correct where the thermostat has pis that go into the base plate to make connection correct?
Lets start by the thermostat please remove it and do this....Find the RED and YELLOW wires there do you see them?
OK can you connect those two wires together and see if the AC comes on and runs fine without issue?
No problem....do that and see or clean off the base connections and using an eyeglass screw driver after cleaning the connections off carefully bend the tabs so they grab the pins tighter and try it. Often that base is the issue and the pins lose connection with it causing that issue.
OK great! If i am away I will get to it as soon as I am around...I have some stuff to take care of later but I will be back at some point