I do not have a picture of it but when you look at the bottom of the board it will be evident as there will be a dark ring around the joint that has come undone. Youre basically bridging the gap with solder and more wire as the connection is too small to sustain the fans. I do not have a picture of it but when you look at the bottom of the board it will be evident as there will be a dark ring around the joint that has come undone. Youre basically bridging the gap with solder and more wire as the connection is too small to sustain the fans.

I would use a multimeter to check for a loose or intermittent connection. You cant do much to repair it beyond that. The brushes may be going bad in that dash motor, If you can get to its power lead and see if it work continuously when jumpered then you can rule the motor out. If its just flow to certain areas that sounds like binding vent flaps. Best thing to do would keep dash area apart to see function of the flaps when system in operation. If it tries and pulls them you may be able to identify the flaps binding. I would use a multimeter to check for a loose or intermittent connection. You cant do much to repair it beyond that. The brushes may be going bad in that dash motor, If you can get to its power lead and see if it work continuously when jumpered then you can rule the motor out. If its just flow to certain areas that sounds like binding vent flaps. Best thing to do would keep dash area apart to see function of the flaps when system in operation. If it tries and pulls them you may be able to identify the flaps binding.