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I have a 2003 Chevrolet trailblazer the heater ac fan will only work on setting 5 How do I fix this so that all speeds work?
DaveCollinsfb5525
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What causes the heater blower motor in a 2003 Trailblazer to not work in speeds 1-3 but works in speeds 4 and 5?
Probably the blower motor speed resistor is partially burned out.
Why will the heater blower work on the 2 high speeds and not the 2 low speeds on a 1997 Chevrolet Cavalier and what part needs replaced and where is it located?
you need a new rheostat !
What would cause a blower to work and all speeds except High in 2002 Chev Trailblazer?
This is more than likely caused by the actual fan switch. As I am English, I have no idea what a Chevrolet Trailblazer is, or what it looks like even, but there are things which are common to all or many vehicles.
How do you replace a heater switch in a Trailblazer?
This is not a common failure. The more likely culprit is the blower moter resistor that controls the fan speeds. Very simple to fix yourself and about $35 for the part. To get more info about this or other Trailblazer '02 and up questions join our forum at www.trailvoy.com
If you have a 92 jeep wrangler heater and ac are separate how many speeds is the ac fan not the heater?
I had one of these on a 1991 Wrangler and if I remember correctly it had 3 speeds. i currently have a 92 and it dose have 3 speeds
Why does the heater fan work on the two higher speeds and not the two lower speeds in a 1997 Chevrolet cavalier what part is bad and where is it located?
Sounds like the thermostat is bad. I have found another WikiAnswers site to explain where it is located at. http://wiki.answers.com/Q/Where_is_the_thermostat_located_on_a_1997_Chevy_Cavalier Hope this helps you.
What is a heater blower resistor?
Heater blower resistor is what controls the low medium high speeds...
What processing speeds are available on this model of blender?
Four different speeds are available plus a pulse setting.
What could cause the heater blower motor not to work on a 2002 Trailblazer?
If it works but not on all speeds or is almost making the car stall at idle if you turn the a/c on at a light Than its probably the fan motor resistor pack its $25-$30 at autozone and real easy and fast to replace.
Can a 1994 Chevrolet Caprice Classic heater blower motor resistor be tested to see if it needs replacing?
If you have only high speed on the blower motor or you are missing one or more low speeds, chances are the blower motor speed resistor is burned out.
What could cause the heat switch to only operate in the 5 setting?
Most heater blaower motors have 2 relays: 1 for speeds 1-4 and a high speed fan relay for 5th speed I do not know what kind of vehicle or location of relays Most heater blaower motors have 2 relays: 1 for speeds 1-4 and a high speed fan relay for 5th speed I do not know what kind of vehicle or location of relays
How can you fix a heater and AC fan that only work on high?
Resistors control the speed of the AC/Heater fan. These resistors are switched on and off in various combinations to create the different fan speeds. When the resistors burn out your fan will only work on the "HI" setting. The "HI" setting doesn't use any of the resistors and that's why it works. These resistors are near the blower and the blower is beneath the dashboard on the pasenger side. Just have to located resistors now.
