Mine did something similar to that for a while. I found that cycling it from AC to heat stopped it as the flow valve was sticking. I'd start the AC then change it to heat pump. I've only had to do this a couple of times and it's been stable since.
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Mike Nancy and the fuzzies
Fulltiming since June 2004
Volvo 660 MH tow vehicle
2005 MS 38RL
2007 Saturn Ion "toad"
2010 Gold Wing "piggyback"
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