Question about Carrier 38CKC042 Air Conditioner

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My home a/c will not start. i have the therm set to cool and 10 deg cooler than room.the breakers are fine and i have power to the contactor.i can manualy start it by pushing on the contactor but as soon as i let off it stops.

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  • dragn747 May 11, 2010

    my unit is a payne 3883e00675 air conditioner not the carrier listed above

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The contactor needs 2 power sources. 22ov sitting there waiting, and then 24v to close it. The 24v is referred tcoil wires. The 24 comes from the thermostat to the air handler inside, then leapfrogs outdoors to the condenser. Once in thecondenser it can run through low pressure switch also. The goal is to see where the 24v stops. Remove the 2strand wire from the unit (NOT the 220v) and see if 24v there. If not go back towards furnace...if it is there move on into the unit....if 24v is at contactor coil and it is not closed, then the contactor itself is bad.

Posted on May 11, 2010

  • fixxittmann May 11, 2010

    This will be the same whether it is Payne or Carrier

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