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Heat pump takes many trys to start compressor

Heat pump takes from 1 to 10 trys to bring the compressor on. When it does come on it is really noisey and runs forever before the stat is satisfied. Stat is in a ok place where it senses the whole house and out of the sun. I think the problem is the dual capacitor for the fan and compressor, the fan has no problem coming on. Could you give me some other things to check?

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Do the thermostat have a time delay on it? most digital ones do you may have to get one if thats the case. Also are there start components on the unit? I've had top add them due to the newer units hasve nonbleed txv's and have a hard time starting up because of them. ans if oyu can see if there's a crank case heater on the unit becaause refrigerant migrates to the coldest spot and the compressor can have all the refrigerant inside of the can mixed with the oil. goof luck

Posted on Jan 12, 2009

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