Local mechanical contractor installed a FHP WP-072 in our Minnesota home in December 2006. This is a 6 ton open loop system, to heat/cool approximately 2500 square ft home. We have had numerous problems with this system, and wondering if FHP is the issue or the installer. We have had to call for repair about every 4-6 months since install. Contractor has replaced different relays, and two different start capacitors, all on separate trips. He has had to come back every spring and fall to re-adjust some setting on the unit, as it would "freeze up" in the summer when switched to the 'cool' setting, and then in the fall, would not heat sufficiently until he 're-set' those same settings or replaced parts. After two years had passed, he started charging labor for this. In March of this year something inside burned out and made the utility room smell like it was on fire. We were charged $250 for him to replace something he called the 'start up' system he says shorted against the inside of the heat pump and burned out. Right now we are waiting on him to come and reset something again, as we switched to 'cool' 3 days ago, and now there is a stuck relay causing a circulating pump to run 24/7, and the system doesn't even turn on. We have asked about warranty, which he says ran out in 2008. I even asked for a complete replacement, as we feel we have a lemon on our hands - he said we would have to deal with FHP. Emails to FHP go unanswered. My parents have had a heat pump (different brand) for over 15 years - with no problems since day one. I'm really disappointed with this, don't know what to do, and can't afford a completely new system. Any ideas?