I have a Nordyne Model #C3BA-036C-A Heating Unit and a 624631-B Control Board. I am swapping out the Control Board with a Honeywell S9200U1000 Universal Integrated Control Board. The only problem is that there is a Blue wire coming from the Motor Plug and going to pin M1 on the Nordyne Board and I don't know where on the Honeywell board to plug it in. Any idea?? Thanks, Scott...

Put it on one of the park tabs. I believe it is a extra speed wire for the blower motor. That is if you have already got the cool and heat terminals connected.


http://customer.honeywell.com/techlit/pdf/PackedLit/69-2075.pdf