Question about 1994 Chevrolet C1500

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Controls for fan, ac and heater don't work - 1994 Chevrolet C1500

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There was a wiring issue with this truck, pull the heater control and check the blower switch for burned connectors and wiring.

Posted on Nov 07, 2012

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Posted on Jan 02, 2017

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  • 11 Answers

SOURCE: Heater/ac switch speeds 1 and 2 don not work in 99 Silverado

you need a resister found under your air duct by the passenger floor under dash board auto zone sells these for about 25.00 you may as well buy cabin air filters while your at it . 1 of the screws will be a pain to install back into the duct work I left mine out didn,t make a difference . you might have to order it as they are a comman item oh you will need a vacuum to clean up mess from cabin air filters .this is not a hard job .

Posted on Feb 28, 2009

  • 4 Answers

SOURCE: The heater/ac fan only works on speed settings 4

you might check your switch sounds like to me that your two lower speed sides of the switch maybe burnwed out.

Posted on Dec 19, 2009

  • 48 Answers

SOURCE: 2001 Lumina ac/heater fan good on low speed 1

Replace the blower motor.

Posted on Aug 04, 2010

redds55
  • 2620 Answers

SOURCE: My AC/heater blower switch only workes on 3,4,5

Yes,your blower motor resistor is faulty.

Posted on Aug 12, 2011

  • 1 Answer

SOURCE: heater takes a long time to heat up

When you select A/C or Heater, there is a door (vent air flow change) that open and close when making these selections.

Posted on Dec 05, 2011

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1 Answer

Speedometer, cruise light , ac/heater control doesn't work


Sounds like someone needs to do some more troubleshooting first. Changing the cluster is not a simple matter since your mileage will be different. And the cluster is on a different circuit that the ac so one should not affect the other.

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Both "blower" fuses are fed by the ignition switch. If there is no power to those fuses than the switch is the likely problem.

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Without the year of the truck, I can't say much for advice.
I would get a wiring diagram to find out where the power for the control comes from.
On a 1995 model truck there are 5 fuses and several relays involved in the HVAC system.

Dec 22, 2012 | Cars & Trucks

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My a/c (heater & Defrost) doesn't always work, could it be a fuse or the fan blower?


Check whether you might have bad connection or contact,or e ven bad switch.

Sep 03, 2012 | 2005 Kia Spectra

1 Answer

The ac and heater blower only works once in a while on my 2004 seabring


It is a rather simple fix and don't let the repair place charge you too much, There is a switch that controls the fan speed which allows you to have the fan on 1234 positions. Cost of the part and labor should be no more than $100

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Where's the fuse for the AC on 98 Olds 88?


So what does the fuse that blows, protect?

You need a wiring diagram & start to test
the components most likely to cause a high
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Don't keep replacing it.

You know the fan control circuit works, but the
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May have a module for compressor & fan
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1 Answer

2001 Volvo v70. The heater/ac fan has stopped working. I have checked all fuses. Can suggest what my next step should be?


The fuse for heater/ac fan is number 36.30 amp located end of dash
If this is ok,you need to replace heater control module behind heater controls.Save money buy haynes manual,check e bay

Apr 09, 2010 | 2001 Volvo V70

3 Answers

The heater/ac fan only works on speed settings 4 & 5


you might check your switch sounds like to me that your two lower speed sides of the switch maybe burnwed out.

Dec 19, 2009 | 2002 Chevrolet TrailBlazer

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