You have my sympathies .
I can not see you paying that knid of money for HVAC ! :-(
But , I do self install , with help from friends and family .
I probably have around $ 900 in my 13 SEER 12,000 mini split . Including a little tooling I did not already have .
I shut the HP off at about 25 F , sounds like the condenser is taking too long to shut off . At that point , I am using 100% natural gas heat .
Gof bless
Wyr
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