hvac control unit

Discuss any problems, warranty, repair, or replacement issues you are having with your Vibe & Matrix
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don2209
Posts: 1
Joined: Sat Aug 16, 2008 9:50 pm

hvac control unit

Post by don2209 »

when i turn on fan, i have to turn to highest setting in order for it towork ithink control unit is bad and if it is where can i get one
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ColonelPanic
Posts: 8436
Joined: Sun Jan 05, 2003 8:48 am
Location: South Central Indiana

Re: hvac control unit (don2209)

Post by ColonelPanic »

Welcome! There have been several reports of this, the blower motor resistor is likely the cause. Check this thread for more information.
03 Vibe base. Born 10/14/2002 06:07 AM
Auto, Moon & Tunes, power package. 143k
Neptune/dying clearcoat/primer grey. :lol:

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'21 Elantra Limited - 2.0L/IVT
'15 Escape SE - 1.6L EcoBoost (hers)
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ToolGuy
Posts: 3584
Joined: Wed Jul 28, 2004 3:38 am

Re: hvac control unit (don2209)

Post by ToolGuy »

ColonelPanic is most likely right...The motor defaults to high as a safety feature so the driver at least has some kind of fan in order to still drive the car. High is full 12 volts power to the motor where the resistor cuts the voltage down for the lower speeds.
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