my ac keeps blowing boards on my heil furnace
For 10 years I had a york furnace and ac. And except for the fact that the furnace died prematurely at 10 years I had no problems. About 20 months ago I replaced the furncace with a heil. It was fall and I had heat all winter. However, when the cooling season arrived I went through three boards. And then my contracter who installed the system went out of business. I had the area heil tech come and he decided there was a problem with the install, fixed it and replaced the board againg with board #4. Again, I had fine heat all winter. Then summer arrived and the board blew again, was replaced with #5 and also we changed the thermostat, just because, and I had fine ac for about 5 weeks. And, the board went again over the weekend. Hottest weekend of the year, conveniently. Does anyone have any similiar tales or could anyone offer anything. I am desperate. Everyone who looks at it suggests that they have eliminated all other possibilites.