My fan switch for the blower on the AC went out. No clicking, freely
moves back and forth. I have removed the screws for the cover plate,
and it is loose. It appears the levers for the temp mixer is preventing
me from getting in any farther. How do I get past them to access the
switch and replace it?
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Are you sure that you need a blower switch? There are other items that are prone to going out before the switch like the resistor or the motor, but if it is the switch you first remove the large piece of trim that surrounds the radio, heater controls, and instrument cluster. This will reveal the screws that hold the heater control head into the dash.
This is very common, this sounds like the blower resistor went bad, the blower resistor is what controls the fan speeds, the is located on the heater box next to the blowermotor, its held in with two screws and slides into heater box, lets see if i can send you a photo of the blower resistor to help you locate it.
Check the heater control switch,,,,,and the number of wires at the heater motor....Some motors have more than one winding...in which case there will be three or more wires going into motor..there can be burnout in those windings and will require a new motor....check the plug which attaches to the motor....can be bad connection...or at the switch.....but if there is only two wires....then the heater switch uses resistors to slow down the different speeds...and direct connection for high speed....and the problem is definitely the switch...
blower motor location is in the heater box down by the passengers feet the fan relay in out under the hood in the power fuse box check this first
check to see if the blower motor turns you can do this by removing the three screws the motor and squiral cage will come out spin it if it moves freely putit back replace the switch assembly
on 1992 s10 remove the heater outlets and duck from under instrument panel. Remove air distribution model assembly,heater and seal. Disconnect neg batt cable. Drain eng coolant. Remove hoses at core. Remove rear case screws. Remove heater core from case.