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Blown fuse.
blower motor bad or no power to it chech fuses blower switch blower motor
Check at the blower motor itself. Have it turned on and tap the end of the blower motor with a hammer. I did this and found out that the blower motor was going out. The blower motor is on the top passenger side under the hood. Also check the wire connections. Make sure they are seated good. If this includes for the heater then I would say the blower motor is bad.
First check the fuses. If the fuses are okay I would suspect the switch and plug had a meltdown or the blower motor itself is shot. If it was the blower speed resistor that was shot you would still have high speed.
Check your fuses.
Check the fuses first and the blower relay.
Assuming you have no speeds including HI I would check for power at the connection at the blower motor with ignition and switches on. If you have power the motor is shot. If you have no power go back and check the fuses. If the fuses are good check the switch and electrial plug at the switch for damage. If the blower motor speed resistor was burned out you would still have HI speed.
If you have checked the blower motor and it does function when power is applied then I would suspect the Blower Motor Resistor Pack is defective. It is also possible the blower motor speed control is bad, but highly unlikely.
the first thing you want to check is the fuses and relays. if those are good the fan motor, resistors, switch or wiring could be the problem.
Defective blower motor or blower motor resistor pack.
The blower may simply have burned out. If the blower is out then the heater probably still works.
If the blower motor does not run at any speed, and you are positive the fuse is good, then it is either a defective blower motor, blower motor speed control, bad Blower Motor Resistor Pack, or loose, corroded, or disconnected wiring. I would replace the fuse even if it looks good before going any farther. Apply 12 volts directly to the motor to see if it is good.