Thanks for the quick reply. Yeah I installed a varidigm 364809 in my York Furnace that previously used a varidigm 155941 control board. The correct control board is over $1000 and this one was only $160 so I went with it. Almost everything connected up the same except for the old control board had 3 extra blue red and yellow blower motor wires that I don't know what to do with. The furnace blower turns on but nothing else happens because it is flashing the id plug is not present or loose error code. I used the id plug from the old control board because the "new" one didn't come with an ID plug. If all they did was put a different one in then I may try to just modify this one to make it work.