A mate has a york heat pump which seems to be stuck on cooling. The model is moh25r15aicIts a 7 kw system. Whats likely to be to problem? Any help out there? Thanks
The compressor and fan are running, seems heat ex ipipes are cold not warm. We were thinking control board or 4 way valve thing. Whats the coil on the 4 way do? Does it work all the time?
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