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What could be wrong if the front defroster and AC on a 1991 Chevy Corsica are not working and it seems to be the blower motor because when you turn the setting to heat it works?
Replace your heater selector switch
How do you replace a ac heater knob on 05 accent?
how do you replace ac heater knob in a 05 accent
Why does my 1991 Lincoln Town Car's AC and heater work at either full blast or not at all?
The problem is either the blower motor resistor or the blower speed selector switch.
How do you replace the ac switch in the dash of a 2002 beetle?
how do you replace the ac switch in the dash of a beetle 1999
How do you replace a heater fan switch in a Chevy suburban?
I just replaced the front heater motor in my 99 Suburban, it worked great, now the heater/ac absolutely does nothing. Could the switch be bad, the motor, I am stumped and need help. Thanks Jim.
Why does your 1999 Pontiac grand am heater ac only work on high?
There is a resistor pack operated by the fan switch. It has failed. You need to replace it.
99 Taurus ac heater blower motor just stopped Fuses are good. Is it likely the Switch or blower motor?
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.
Whats wrong with your ac on a 2000 Oldsmobile intrigue?
If the AC is Blowing cold and turn off and on, the AC/heater control switch is bad. Replace it on eBay for around fifty dollars. Work great now.
What could cause the ac to not blow cold air in a 98 sunfire?
This could be due to a couple of things. The temperature switch is bad, the AC selector switch is bad, the AC compressor is not engaging when you turn the air on, or the AC system needs to be recharged. FriPilot
When operating the heater in a 2000 Toyota Tacoma PreRunner does the AC button have to be off and not pushed in?
The AC switch operates the AC compressor and should have no bearing on your heater function. If your heater is not working properly, you may have a weak thermostat.
Ac lines are all cold and sweaty but blowing only hot air inside what causes this?
I have a 2002 Jeep Grand Cherokee Laredo that was doing the same thing. The problem was a faulty ac/heater switch. You put the switch on ac, compresser engages, lines get cold and frosty, but only hot air is coming out of the vents, because the switch has changed back to heater even though it shows ac. The cure is to have the center panel which contains the ac/heater switch, fan speed switch and temperature control replaced.
What would cause the AC or heater on a 1996 GMC Jimmy to not go on high?
fan speed control switch is bad. Replace it as long as the other speeds work fine.
