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Ac/heater fan wont work. I've check fuses. Ect. Replaced…

Customer Question
Ac/heater fan wont work...

Ac/heater fan wont work. I've check fuses. Ect. Replaced resisted. Still nothing. It's a 2006 jeep commander

Mechanic's Assistant: Most vehicles have two fuse panels. Have you located both?

Yes there are all ok

Mechanic's Assistant: Are you fixing your Commander yourself? What have you tried so far?

Changed out the resister

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

It just act dead

Submitted: 11 months ago.Category: Jeep
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Answered in 21 minutes by:
9/6/2017
Jeep Mechanic: camerontech, Technician replied 11 months ago
camerontech
camerontech, Technician
Category: Jeep
Satisfied Customers: 711
Experience: diagnostic auto tech
Verified

hi there

im cam, a licenced diagnostic tech

you will need to see if it a power supply problem or a ground control problem

check for power at the dark blue wire at the blower motor. there should be 12volts there with ignition on.

if not, there is a blower motor relay in the underhood fuse relay box to check

if power is good, than you will need to remove the heater control head assembly and check the connection at the back of it.

you will inspect the larger wire connector forr burnt and melted connector and wires.
these control units are bad for melting.

there is a black and light green wire, this is the fround supply for the blower control. make sure this is a good ground

apply this ground to each of the wires that go to the resistor. i have included a diargram for you

if the blower works after applying this ground than the control head is faulty

Ask Your Own Jeep Question
Jeep Mechanic: camerontech, Technician replied 11 months ago

hi there

let me know if i can help you any further!

please takea moment to rate me!

thanks and i appreciate positive ratings!

cam

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