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Unit not coming on. air isn't getting cold

I have a GE central air unit model 5kcp39lg S407 s. when I got home this evening and turned the ac on I noticed that it wasn't getting cold. after looking at the unit outside I noticed it wasn't coming on anymore. what could be the problem and possible solution verses having to purchase a new one?

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First check the breakers for the condensing unit (outside unit) and the disconect outside by the unit (could be a breaker ,a pull off/on switch or fuses)If its ok , you should have 220 ,240 volts to the unit contactor (you'll see it after removing the cover on the condensing unit).When the termostat is in the cold position and the temperature its set is lower than the one inside the house the contactor should be pulled in and give power to the compresor and the fan.But if the termostat is in the cooldest set and the blower inside the house works and the contactor in the condensing unit is not pull in the problem is in the termostat or in the low voltage wire.

Posted on Apr 24, 2009

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