why wont my fan motor turn on on 1990 Ford Tempo

i just had to change my heater core in my 85 ford tempo and right after changeing it the fan stopped blowing so i changed the motor and pluged it in and it still wont turn on

Asked by for the 1990 Ford Tempo
1 answer
There may be a disconnected power source somewhere in your wiring. Also - check the blower motor resistor - is it burned, melted, or just inoperative?