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  #1  
Old 01-19-08, 07:15 PM
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help

I have a 1995 olds cutlass cierra, the switch for the fan speeds isnt working, i have no heat. I was told it could be the switch, where is this switch?
 
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Old 01-19-08, 07:21 PM
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Welcome to the forums! The switch is the thing you use to change the speeds of the fan. But it could be the fuse, so check that first. Usually fan switches don't go all at one time. You will have one speed but not others b4 they die.
 
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Old 01-19-08, 08:00 PM
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Are you getting anything out of the blower? If not, check the fuse. If that is OK, disconnect the wiring connector from the blower motor and check for power there with a test light.

If you have power and nothing from the blower = bad blower motor or bad ground. Check the latter before replacing.

Hope this helps,

Good luck
 
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Old 01-20-08, 06:31 AM
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thank you for help

Fuse is ok, I will check by the motor, thank you
 
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Old 01-20-08, 05:19 PM
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90% of the time............I'd be looking for the speed control resistor..........Both the resistor and the switch are on the GROUND side of the circuit.........If you're NOT seeing 12 volts at the switch.....and I'm betting you won't..........the resistor is the culprit..........

NOW........If the resistor burned.......You'll want to replace the motor too.........even though it still "works" as it has lost enough OHMS to allow too much amperage to get to and burn the resistor
 
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