My wife was driving to work the other day and said that on her way to work, the air was blowing cold and strong. Then on her way home she said it would not blow any air (hot or cold) at all.

I checked it out, and sure enough not even a gentle breeze comes out of the vents at full fan speed. The electric fan under the hood turns on as soon as you put the A/C on so the car knows that the A/C is on, yet it just won't blow....

Any ideas?

 

Is it full fan speed ('hi') or all speeds ?

Full speed, relay.
All speeds, fuse or motor.

Unplug motor and jumper to battery to confirm the motor is good.
If good, check fuse (HTR A/C 25A).
If bad, replace motor.

 

Well I replaced both the blower motor and blower relay, fuse looks good, but it still isn't working. None of the fan speeds on any of the AC/Heat options do anything.

When I move the slider to say Normal AC for example, the electric fan under the hood turns on, and I can hear a sort of hissing sound coming from the vents, but no air is blown.

 

Just checked the power connector that plugs into the blower and according to the multimeter its not getting any juice. Any last ideas before I take it to the shop guys?