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Hi I have a carrier split unit Heat Pump model 38VYX080N. It works o.k in Cold mode but when I use it on Heat mode the Compressor shutsdown after a few minutes..fan inside and outside keeps going. changed the outdoor Electronic Board, compressor,most of the sensors but no luck.

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Sounds like you have a blockage or a bad check valve. May also have an incorrect refrigerant charge.

Posted on May 25, 2011

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