[Ed Arango]

So I take it that if I click on the green fan button and I don't hear anything, that must mean that the heater blower motor is be bad? Is there anything else I should at?

The switch turns on and the little yellow fan light turns on, on the speedo but no fan movement.

ED

 

[Tifosi]

Check the wires going to the fan motor (vicinity of gas pedal) then prod the fan blades using a pencil through the floor duct.

If you can get it to turn, then try running it.
If it won't just spin up with the switch after poking at it, prod it with the switch on and it might take off.

Sometimes you can get them to recover that way, in which case the next step would be to try and spritz some lube in there to help free things up even more. (you want a nozzle on a spray can, and to go under the bottom edge of the fan, or it'll never hit the motor)

Barring all that, you might need to just tear into it....

 

[Spider77rebuild]

this is how the wires would hookup, wires from switch would hookup to tabs,
Dont know if wire color would be same this is a 78
under dash driverside