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My car a/c and heater dosn't work.

Old 05-15-2009, 06:30 AM
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Default My car a/c and heater dosn't work.

It dosn't even blow air :[...

I'm guessing it's not the condenser because I swapp all the fuses, and it just wont blow any air at all, but the outside ventilation works and the circulating air works too.
Old 05-15-2009, 09:27 AM
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Default Re: My car a/c and heater dosn't work.

blower motor, maybe transistor too
Old 05-15-2009, 10:35 AM
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Default Re: My car a/c and heater dosn't work.

on top of that, my windshield wipers recently stopped working :[
Old 05-15-2009, 05:03 PM
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Default Re: My car a/c and heater dosn't work.

year model? About the wipers, there is a windshield wiper motor recall on some 03Accords Maybe this applies to your car. You can always call your closest dealer and speak with someone in the service department ask them if they can tell you if there are any OPEN recalls for your car and have your VIN # ready. Good luck
Old 05-17-2009, 08:37 PM
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Default Re: My car a/c and heater dosn't work.

Originally Posted by 1grex
blower motor, maybe transistor too
check that your getting power to your blower motor.
Old 05-20-2009, 12:37 PM
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Default Re: My car a/c and heater dosn't work.

like said earlier...transistor..... or the hvac switch.... pull out the a/c fan speed control and jump the wires to the hot side and see if it works...if so then its the fan speed switch/transitor.
Old 05-23-2009, 02:43 PM
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Default Re: My car a/c and heater dosn't work.

Originally Posted by K20DC2R
like said earlier...transistor..... or the hvac switch.... pull out the a/c fan speed control and jump the wires to the hot side and see if it works...if so then its the fan speed switch/transitor.
Depending on the year model the transistor is a resistor, and both even when faulty work in the highest fan speed position. Tell tell Symptoms of transistor/resistor failure is blower motor will not work except for max fan speed position, but not always. When in this position full voltage is apllied to the blower motor. The resistor is how you get less fan speed... Less voltage= Less fan speed.
Old 06-11-2009, 08:24 PM
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Default Re: My car a/c and heater dosn't work.

Originally Posted by K20DC2R
like said earlier...transistor..... or the hvac switch.... pull out the a/c fan speed control and jump the wires to the hot side and see if it works...if so then its the fan speed switch/transitor.
by this u mean jump the wires together right, and if i see a spark then the switch is functioning and i have to diagnose the transitor right?
Old 06-12-2009, 05:47 PM
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Default Re: My car a/c and heater dosn't work.

Even faster than that. Turn the a/c on. If the compressor and cooling fans come on then it's the blower motor. If the a/c compressor and fans do not come on it's the transistor.
Old 06-13-2009, 09:18 AM
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Default Re: My car a/c and heater dosn't work.

I have the same problem... where is the transistor?
Old 06-13-2009, 10:20 AM
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Default Re: My car a/c and heater dosn't work.

this might help
http://club7thgen.proboards.com/inde...y&thread=24887

so if the transistor is functioning and my blower motor is the defect, i would have to replace the whole blower motor?
Old 06-13-2009, 05:13 PM
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Default Re: My car a/c and heater dosn't work.

Originally Posted by kpjo4
so if the transistor is functioning and my blower motor is the defect, i would have to replace the whole blower motor?
Yes you need to replace the motor assembly.
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