Question about Intertherm P3RA-036K Air Conditioner
I have a T3BA-036KA the outside unit will not kick on .you can push the contactor in and it will come on .so we replaced it and still doing the same thing.
You need 24 volts going to the coil of the contactor. If you do not have 24 volts, you will need to trace the wiring back to see where you are losing it from. Try placing your voltmeter at C & Y coming from your air handler. If not, go to your air handler and test for 24 volts ac at C & Y coming from your thermostat. If you do not have 24 volts coming from your thermostat, there is either a problem with the thermostat or there is a problem with the wiring between the thermostat and the air handler. If you have 24 volts at the air handler coming from the thermostat but you do not have 24 volts at the outdoor unit coming from the air handler, then you have a problem with the wires between the air handler and the outdoor unit.
I hope you find this information to be very helpful to you moving forward. Please leave a rating. :-)
Posted on May 10, 2010
There are 2 wires that go from the furnace inside to the unit outside. It is this 2 wires that carries the signal to close the contactor. Problems can be.....pump by furnace full and overflow switch tripped, no signal from tstat, 2 wire outside broken or weed wacked, furnace transformer not putting out 24v
Posted on May 10, 2010
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Posted on Jan 02, 2017
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