a/c and heat blower motor problem

[kodeman]

last tuesday it was about 100 deg outside so i was running my a/c in the pickup. It just stopped working , the blower would not blow at all , i tried all the different settings and it blew very lightly for a few sec on just the vent setting, then nothing. It has been parked till today , so 5 days. i went out and started it up, the a/c was working and the heat like nothing ever happend. Makes it kind of hard to diagnose what happend. any suggestions? Thank you

[enoyes12]

Mine did the dame thing about a month ago and then finally quit all together. It was the blower motor on mine. Runs constantly here in Phoenix! (It was so bad it wore through the brushes on the armature only leaving the wires.) If it quits working again disconnect the plug on the blower motor and jump the motor wires directly to the battery and see if it works. If it's good it's probably the resistors right next to where you removed the blower motor. Do a search and you will find it. Good luck.

[tony66]

There is a resistor(?name) mounted next to the blower. It is a white block, it controls the various speeds. That could be it.