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Either the breaker rating is too small for the air conditioner or the unit is defective. Choose the right size breaker for the air conditioner power requirements and ensure the wire size to the unit is correct.
Your unit is pulling too much power which is popping the circuit breaker. Either the compressor motor or Fan motor has a problem and you need a pro here. Drawing excessive electrical current is not good and you can do even more damage to your unit by continuing to try and run it!
You need to check the maximum amperage the A/C units pulls and compar it to the breaker amperage. The breaker amperage needs to be greater than the A/C amperage. Also A/C's draw more than the rating when they first kick on, so a 15 amp A/C should be on a 20 amp breaker and so on.
When you say breaker box clicks and then warm air, are you referring to the actual breaker switch in your power panel, or clicking at your ceiling assembly? When the breaker trips, the air conditioner should shut down completely, is that what happens? The compressor kicking in and out could cause circuit breaker to trip. Did the electrician record incoming voltage supply, and what was it ? 115 volts?
Is it the breaker for the outdoor unit, because if so then chances are good you either have a locked up compressor, or a grounded compressor.... a locked up compressor can sometimes be freed with a "hard start" capacitor, but a grounded compressor is a completely failed one
Hi. are you saying that the unit tries to start up....do you mean the compressor only or that the unit does come on fan and all, runs for a short time and shuts off completely?? I just need to no what it is doing on start up before it kicks out, this would be very helpful in solving this for you. If it trips the breaker or not or does anything at all run for a second. Please let me know and I can have a solution for you. Thank You. Shastalaker7
What kind of a unit is it? Is it integrated with a furnace in the attic? Need to now this information. Also, turn the thermostat to Cool/Auto and go outside to see if the condenser unit is running, if so, then there is a problem with the indoor blower motor or thermostat. Jumper the green and red wires on the thermostat and see if the blower comes on. If so, you have a bad thermostat. If not, you could have a bad fan motor or capacitor.