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I HAVE PROBLEM WITH THE EXTERNAL UNIT OF AIR CONDITIONER AND MY SPECIFIC PROBLEM I HAVE WITH THE COMPRESSOR AND FAN OF EXTERNAL UNIT .
WHEN I START THE AIR CONDITION INSIDE UNIT START TO WORK BUT THE COMPRESSOR AND THE FAN OF EXTERNAL UNIT DOES NOT WORK
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If the fan is not running is the compressor not running also...if neither is running the possible reasons are 1..no power to outside unit...2..bad contactor on outside unit.is this buzzing if it is this indicates no power...3 bad capacitor,do both compressor and fan humm then quit humming and hum some more...4 high pressure switch has shut unit down because fan wasnt running if compressor was running but not fan....if your unit has this there will be a manual reset button where the lines come out of unit...if compressor was running and fan was not...1 bad fan...2 bad capacitor.. if you do not have any electrical knowhow i would recommend calling a hvac tech to come and fix unit...Thanks
If it is blowing air and the compressor is running you are low on freon more than likely. make sure the fan on the unit is also running it helps it get rid of heat on the external coils. if all fans are running and the compressor is running it is low on freon.
Check your air filters and replace if necessary. Check the indoor and outdoor coils and clean if needed. If the line is still is freezing get the refrigerant charge checked.
Check the circuit breakers for the indoor fan. If you have power to the fan then you might have a bad capacitor or bad fan motor. Make the power is off and see if the fan rotates freely by hand. You can use a multimeter to check the capacitor and the fan motor. If it is not any of these you can look at the fan relay to see if it is working.
This could be caused by a blown circuit breaker or fuse inside the unit, a damaged compressor or fan motor, faulty wires connecting the compressor or fans to the control board unit, a faulty or hung relay on the control board (this can sometimes be solved by tapping the relay with a screwdriver), or the starter capacitor for the compressor or fan motor.
What type of thermostat do you have? If the fan is not coming on and neither is the compressor, then is more than likely a problem with the thermostat of control units of the Air Conditioners. The fan will come whether the compressor does or not if the thermostat and control unit are working correctly. Check for twelve volt at the control unit of the air conditioner ceiling unit. (Red Wire, should be labeled)
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