Last weekend the heat stopped working on my cruisair turbo AC unit. Was working when I went to sleep, but woke up and it was blowing very cold air. The whole unit was icing up and fan was barely blowing. Shut unit off and defosted it with with hair dyer. The fan started working fine but still no heat. If I turn the thermostat up the heat will turn on in the heat mood but blows cold air. Turn the thermostat down and it will kick off. So the thermostat seems to be working and the unit is cycling. The AC mood is working fine. Had a AC guy look at it and said the reversing valve is not working. But doesnt know why. The unit is right at 2 years old so the full warranty is out. Cruisar has agreed to give me a new valve along with soleniod and electrical board. The AC guy wants to install the soleniod and eletrical board before installing the valve. It that doesnt work then install the valve, but he has told me that it is not certain replacing all this will fix the problem and I may need a new unit. Ok this unit is only 2 years old and I cant really see needing a new unit, or pay 500.00 to find out he tells me I need a new unit. Has any one experienced this type of issue? If so how was it fixed. Does it sound right what he has told?