york a/c not working - http://www.hvacmechanic.com/ Forums
Original message
| oc40jr
 |  "york a/c not working"
, posted Wed 14 May 16:56  
this unit appears to have a low voltage problem but i checked the low voltage and it's fine so i go and push the contactor in and the compressor comes on then i checked the contactor its ok i checked the voltage at the low voltage wires and there is 24 volts at the a/c unit and at the furnace.i notice there is this round plastic thing with wires going to it i touched it and it felt hot also has 120 volts going to it i was wondering what that thing is for. can that be the problem?
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Replies:
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| theduke03
| "Re(1):york a/c not working" , posted Wed 14 May 18:14
If you have 24v between Y and C at outdoor unit, but no 24v to contactor then I would suspect a low pressure switch open due to a low charge/leak.
"My dad was the most feared furnace fighter in Northern Indiana."
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