Check the fuse
Check to see if you are getting power and ground to the blower motor - if so blower motor is bad. If no power possibly fan switch or selector switch Also check the blower motor resistor, found in heater plenum.
blower motor bad or no power to it chech fuses blower switch blower motor
check fuses,see if ones blown check power at blower, don't forget the fan switch ,there famous for going out.
Check fuses Could be a defective ignition switch
Check to see if you are getting power to blower motor--if so, bad blower motor If no power- perhaps bad resistor pack at blower motor Bad switch?
check the hvac fuse first if that is ok check the thermistatic control switch make sure you have power going to the blower motor if there is power the blower motor is bad
Check blower motor fuse Check to see if blower motor is getting power
it sounds like your ignition switch, i ran into a similar problem, your power goes through your ignition switch for your blower motor.
If you have no speeds at all, including high speed and you have power at the fuse and the fuse is good, I would suspect the heater blower speed switch and or the electrical plug to the switch is cooked. If you have high speed only and the rest are dead, I would suspect the blower motor speed resistor.
there is a condenser on the heater housing it has 2 bolts holding it into the housing, just below the heater motor, they go bad, i had the same problem on a 95 rodeo.
Bad blower motor fuse? Bad blower motor resistor pack? Bad blower motor - checck to see if it is getting power--if so bad motor Bad switch?
It is either the fuse or relay. also check the heater/ ac control switch.