The customer reported that their home service unit was not cooling. Upon arrival, the technician found the unit completely iced up. The customer stated that the power had gone out, and the furnace had stopped working. The technician diagnosed the problem as a bad circuit board. Due to the unit being iced up and the fan not blowing water, the technician fell down and damaged the blower motor and door switch. The technician put in a parts order form for a new door switch, blower motor, and circuit board. The technician will need to return before the heating season to make sure the water didn't damage the heat exchanger.