The AC/heater control has no power

CMGONZALES428

MEMBER
2014 SUBARU CROSSTREK
4 CYL
4WD
AUTOMATIC
198,000 MILES

One day while I was driving, I heard the blower fan stop running. I tried the knobs but the fan speed control and the temperature controls have no power. Checked the fuses and they aren’t burnt.

My question is this, Is there another location other than the two fuses blocks? Or could the motor be burnt out?

Thank you for your time.

3 Replies

JIS001

MECHANIC
3,411 POSTS

There is a service bulletin for this condition. See images below. There is water intrusion causing corrosion and making the blower motor to work harder until it burns out. There is an updated blower motor with cabin filter you need to replace. The updated parts have better insulation. Here are the instructions with images. Also the bulletin has the updated part numbers.

REMOVAL

� 1.� Disconnect the ground cable from battery.
� 2.� Release the clips, and remove the under cover assembly - passenger.
� 3.� Remove the blower - motor.
� � � � 1.� Disconnect the connector.
� � � � 2.� Remove the screws and detach the blower - motor.
INSTALLATION
Install each part in the reverse order of removal.

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Friday, February 14th, 2020 AT 10:02 PM

CMGONZALES428

MEMBER
3 POSTS

So I changed both the fan and resistor, and I do not have any power at the controls. Could there be a fuse that I am missing?

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Monday, February 17th, 2020 AT 7:14 AM

KEN L

MASTER CERTIFIED MECHANIC
48,289 POSTS

There are 7 fuses that run the system. here is a guide to help you check for power and the fuse location with the HVAC wiring diagrams so you can see how the system works with the fuses that need to be checked:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

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