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Heat Pump Not Performing up to par...

I have a Intertherm T3BC-060K heat pump and it is just not performing as before. I have cleaned the air handler and replaced the filters. I have also cleaned the outside unit and used an air hose to blow out the bugs and debris. I began to notice the system is coming on and running continuously even with the moderate temperatures we have been having. The air output is cooler than normal and I also noticed the unit outside is forming ice around where the pipes are located in the gridwork. Any ideas??

Thanks.

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While is newly operating check the unit data ( suction press., discharge press., current reading be sure that no ice formation in this testing.) If every thing is normal then you have to focus in the unit control.
- check for out of range thermostat.
- check for stuck up magnetic contactor or relay.
- if it is digital check for out of range sensor or defective control.

Posted on Dec 30, 2007

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This sounds like a small freon leak. If you have a low pressure cut out switch, it should cut the compressor off before it gets too low. If you have a lot of ice on the outside coil, then maybe the defrost board or the sensor has went bad. But because you said it is running continuously, I think its low on freon. Unless you own a set of gauges for this equipment, call a pro.

Posted on Dec 28, 2007

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