Is anybody know where to get a service manual for the above unit. It seems I'm having a problem, unit is not cooling, the evap fan does'nt seem working normal. Tried to unplug ang plugged back the unit, after a few seconds the fan starts to turn very slowly until it goes to maximum. The fan will then work for a few minutes then stop. Did replace the fan motor with a new one, still giving the same problem. Do I have problem with the main board? Please help.