Coleman AC problemneed parts sources

I believe I've diagnosed my AC problem (no high/low fan) down to the AC Control Box circuit board. Now my big question is where can I find a replacement board? I was unable to find anything on the Coleman web site and it is to late to call? The circuit board is made by ICM Controls and has two numbers 7834-3, maybe the circuit board number and 833B327, maybe the unit #. ICM Controls does not recognize the part # on their web site. I believe that the 833B327 is the number of the control box with the board but I cannot find any information about it. Any idea's?
Thanks!