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Yes.....that is usually how it works. What is the make and model of your A/C and the make of your thermostat? Analog or digital? What have you checked thus far? Get back to me with this info and I can assist you further here. All follow up are included in our fee.
It might, but the "click" is usually telling......that shows the relay is closing, but probably not passing power over. You can take a small digital multimeter and check it OUT of the relay. A new fan motor may be needed, but even then the compressor will usually come on as that relay controls both. Check that and see. Get back to me if you need more on this later and I will make a phone call option available for you if you think that would be helpful here.