The furnace quit working on Thanksgiving. It was giving me continuous flashes of the red light indicating the gas valve was not functioning. The gas valve was not opening. I jumped the gas valve to the transformer and it worked fine. The original controller board was putting out erratic voltage at times when it was not supposed to.
I gave it a shot and replaced the board and the furnace is now working! This is a new board with a few small differences. The new board appears to be a revised version. Anyhow, I ordered the board ln a Friday night for USPS Priority Express ship, it shipped out on Saturday, and arrived Monday morning just in time for the extremely cold weather. I'm very thankful for the immediate shipping on a Saturday! I will buy from McCombs again!