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View Full Version : No power going to AC unit


elsohage
Jun 20, 2009, 09:52 PM
Hello I have problem with my AC there in no power going out to the unite I have check all the fusses I could find the one outsider by the unit it was fine put there was no power I used my voltmeter also I blower working good the thermostats also working fine it turn on and off and if you change the setting the blower will response to it I check the conction on the fan timer controller board I didn't see any thing wrong dose any one have any idea what is wrong

Joshdta
Jun 21, 2009, 08:31 AM
You have now 220 volts? Or 24 volts? Does the unit run if you push in the contactor?

elsohage
Jun 22, 2009, 08:42 AM
You have now 220 volts? or 24 volts? Does the unit run if you push in the contactor?

Yes the unit will run when I puch on the contactor. Do you think the problem with the contactor and if so could be fix or I have to buy know one I do have good knowledge
Thank you

wmproop
Jun 22, 2009, 11:37 AM
Is probably low voltage prob. Check the smaller tstat wire going to the contactor,for 24 volts.trace the wire back to the furnace if you don`t have 24 volts, looking for chewed or broken wires. Have you checked the circuit board for a blown automotive type push-in fuse
Let us know what you find

elsohage
Jun 24, 2009, 07:20 AM
is probably low voltage prob. check the smaller tstat wire going to the contactor,for 24 volts.trace the wire back to the furnace if you don`t have 24 volts,,lookin for chewed or broken wires. have you checked the circuit board for a blown automotive type push-in fuse
let us know what you find

It is me again I have change the contractor and it work . I solve the first problem now I have anther problem the fan work fine and it response to the thermostat but the problem now with the compressor it won't kick in it did the first time I pushed on the bad contactor before I change it when I put the new one in it didn't work I changed the capacitor too and yet no compressor I check all the wiring it is fine the power going in to the compressor is 230V but the one going to the fan is 330 that reading from the capacitor to the fan but from the contactor it is 226V in and out so what you think the problem there a button in the side said reset I did push this one also and there was no different

elsohage
Jun 24, 2009, 05:28 PM
I have change the contractor and it work . I solve the first problem now I have anther problem the fan work fine and it response to the thermostat but the problem now with the compressor it won't kick in it did the first time I pushed on the bad contactor before I change it when I put the new one in it didn't work I changed the capacitor too and yet no compressor I check all the wiring it is fine the power going in to the compressor is 230V but the one going to the fan is 330 that reading from the capacitor to the fan but from the contactor it is 226V in and out so what you think the problem there a button in the side said reset I did push this one also and there was no different

Joshdta
Jun 24, 2009, 06:01 PM
Sounds to me like you have got a wire put in the wrong place either on the contactor or the capacitor.

elsohage
Jun 24, 2009, 09:56 PM
sounds to me like you have got a wire put in the wrong place either on the contactor or the capacitor.
I did a Diagram before I take them off but if I did any mistake will be in the contactor

elsohage
Jun 26, 2009, 06:14 AM
Thank you guys it fix now

Joshdta
Jun 26, 2009, 12:29 PM
What did you find the problem was?