I'm wondering I someone has a suggestion on buying a used Calorex 510 Heat pump with some problems. The pump wasn't running for 8 years, before that it did only run about 120 h. Seller is telling that it need to be serviced and that that would cost about 1200 Euros. (Maybe the comp. needs to be replaced. He doesn't know whats the problem is.) He sells the Heat pump for 300 Euro's. Is it a good deal? Can a Compressor be fixed? What does a replacement cost. Are there some quick checks to find out the defects.
Thanks for any kind of help.