The front does not blower air, it works sometimes, doesn't work sometimes. It is beginning to not work at all. I have no idea where to start to find the problem. Need help.

TIA.

 

When it doesn't work, you need to see if there is power to the blower motor. Or maybe give it a good whack to see if it starts up. There are resistor issues where the connector melts to the resistor so could be that as well.