A/C blower shutting off randomly

[guyace]

I have a '93 ranger that the air stops blowing randomly and as soon as I tap the dash it will start blowing again. Though sometimes I have to turn the blower speed switch all the way off along with the vent selector switch. I'm not even sure were to start looking to fix the problem as there is no certain time that it will do it or if it will be a short cutout or a long one.

 

[rtg143]

Turn it on and wiggle the connectors at the motor and resistor to see if it changes.

 

[bowtieboy77]

I would also check connections at fan selector switch since it seems to work when moving selector and temp control. Are you tapping dash above the climate control dash section?