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Anytime. yeah with it jammed closed it'll always run, even on heat. With my trick, it'll only run when the AC is on

please use caution when working with open electrical cabinets, do so at your own risk. But when that fan engages, you should see the blue button on the contactor pull in. you can also run it manually by pushing that blue button in with an insulated screw driver

No you'd want it to run on high always when the ac is on, If its stuck on low or going dead when it tries to swap to high, it'll cut out on overpressure. The AC compressor makes the refrigerant a very hot high pressure liquid, that fan cools it down before going to the evaporator. That blue...

Hey wilb, I have the manual for these 3 ton units and I've worked on about a dozen of them. The condenser fan has a 2 speed motor and swaps when pressure reaches a certain point in the system. That pressure switch, I've noticed, goes out a lot. I've fixed this issue by running a jumper across...