AC blows hot air
I am having a problem with my 6 year old Dometic 15k heat pump. I keep my Flying Cloud 26U inside a metal building in the winter. I set the thermostat at 50 degrees. We made a trip in late February and the heat pump worked nicely. But, this Spring I found my unit will not cool. Instead of cooling, it blows hot air. It’s like the unit is stuck in heat mode even though the thermostat says “Cool”. So, the first thought is a stuck reversing valve. Or maybe a bad valve relay. I would assume a reversing valve could be replaced, but I read discussions which lead me to believe that is either not possible or very costly. Has anyone had this same problem, and if so, how was it resolved?
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