Have a 2013 Mazda 3 sedan; suddenly blower at setting 1,2,3 stop blowing but AC light shows on and the setting at 4 blows but no AC light; what's wrong?
Could be a relay or, if your vehicle is equipped with a resister in the A/C blower motor circuit, that could be bad. If you are mechanically inclined, test the wiring to the blower motor when you turn your speed settings, this will help you narrow the problem. If you get power at the motor, then it could be bad. If no power, the motor speed switch could be the problem.
Answers & Comments
Could be a relay or, if your vehicle is equipped with a resister in the A/C blower motor circuit, that could be bad. If you are mechanically inclined, test the wiring to the blower motor when you turn your speed settings, this will help you narrow the problem. If you get power at the motor, then it could be bad. If no power, the motor speed switch could be the problem.