HHT helped me out a ton with my Harman Accentra insert. I had issues with my stove combustion blower never shutting off unless I unplugged it. It was also running strange, basically doing what it wanted. I changed the ESP but it still did the same thing. My local dealer has an answering service taking all their calls and I left 3 messages with them. I heard nothing for 3 weeks, then finally contacted HHT. An hour after I got off the phone with them, the owner of the local dealer called me, He said he had a board and I went the next day to buy it. He put the board on the counter in a opened box wrapped in dirty bubble wrap. I took th eboard out and it was definitly used. The dealer informed me that it was what he had and if I wanted another one I would wait 10 days so he could re-order it. Meanwhile HHT contacted me to ask how I made out. When I told them what happened they apologized and informed me that they are sending me a board free of charge. 2 days later the board was at my house. I installed it and the Accentra now works flawless.