NYCGeordie
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- Apr 9, 2008
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Help!,
Just closed on a house (it was a foreclosure so no guarantees or warranties on anything) and I'm working through all the things that need fixed. This house has a York AC unit outside with an air handler in the crawlspace. Airhandler seems to be working fine from the thermostat in both emergency heat mode and when set to Cool however the AC unit outside will not start for regular heat or for cooling. I took a look "under the hood" and can't find any burned out wires or short circuits, the 240vAC supply is also good and it appears to be getting power from the thermostat as well. Here is what I did find, the solenoid energizes when the thermostat operates but doesn't start the motor, sounds like the compressor is operating (although very quiet), if I manually operate the solenoid by pushing on the plastic tab in the center the fan and compressor definitely start up. Strange thing is that the Fan and compressor start when I push the solenoid tab in but when the thermostat operates the solenoid it is forcing the tab out. Anyone got any suggestions before I start replacing parts blindly?
Thanks Dave
Just closed on a house (it was a foreclosure so no guarantees or warranties on anything) and I'm working through all the things that need fixed. This house has a York AC unit outside with an air handler in the crawlspace. Airhandler seems to be working fine from the thermostat in both emergency heat mode and when set to Cool however the AC unit outside will not start for regular heat or for cooling. I took a look "under the hood" and can't find any burned out wires or short circuits, the 240vAC supply is also good and it appears to be getting power from the thermostat as well. Here is what I did find, the solenoid energizes when the thermostat operates but doesn't start the motor, sounds like the compressor is operating (although very quiet), if I manually operate the solenoid by pushing on the plastic tab in the center the fan and compressor definitely start up. Strange thing is that the Fan and compressor start when I push the solenoid tab in but when the thermostat operates the solenoid it is forcing the tab out. Anyone got any suggestions before I start replacing parts blindly?
Thanks Dave