Blower does not activate when a/c mode but works fine without a/c

front blower has a problem rear does not

If it's only a few months old it will still be covered by the manufacturers guarantee.

A/c compressor works fine and the blower motor works and shutdown right? it is the problem with the blower resistor or with blower motor relay. try to direct the resistor irrespective of the speed. hope the problem may be solved.

Due to the age of your vehicle, the brushes in the fan motor are worn out. you will have to replace the fan motor, it is not serviceable.

Check fan relay.Turn heater and fan on turn ignition to on position then pull up on fan relay if does'nt click replace relay.

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hi there i was wonder can anyone help me i have replaced my heater blower resister has been replaced and now has stoped working again what is the problem can someone plz help me. the fan is working fine i ran a ground wire and it works but only on high and will not turn off

Blower motor control module probably , but without testing that's just a guess . Do you know how to do automotive electrical testing ? Testing B+ to the module ? Do you know where the module is ? You can find a wiring diagram here , http://www.bbbind.com/free_tsb.html There is a fuse for the blower motor in the I/P fuse box , HVAC blower 10amp ,

there is no transistor. since your fan doesn't work at all most likely it is the motor. if it was the Resistor it would only work on high.

well, the blower motor doesn't have a transistor, and if it were something else then it would run on low or high.

the best option is to replace the blower motor.