york heat pump - http://www.hvacmechanic.com/ Forums
Original message
| lovo127
 |  "york heat pump"
, posted Fri 5 Sep 23:28  
hi mi name is miguel im on duty working this weekend i need help did a call on york hp system wont run on ac what i fount was the contactor getting 13 volts only is not closin i have reversing valve with 24 volts pressure switch seems to be ok the defrost board seems to work fine possible a relay but im not sure i see two common wires other then that is in old unit and the schematic is missing need help going back tomorrow hope to fixed
any help counts
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