HVAC stopped blowing out of the front vents

ASMITH1214

MEMBER
2013 FORD EXPEDITION
4WD
AUTOMATIC
120,000 MILES

All air coming out of the front vents stopped. The back vents still work fine. I replaced the blower motor resistor and now it only blows out on high and will not turn off either. (When I first replaced the resistor it let me change the level a couple times. This the A/C cut off for a few seconds and then turned back on and continues to blow out only on high.)

Monday, June 21st, 2021 AT 4:33 PM

1 Reply

KASEKENNY

MECHANIC
18,907 POSTS

More than likely this is a blower motor issue. However, we need to start with this guide to try and figure out if that is correct.

https://www.2carpros.com/articles/low-or-no-air-flow-from-vents

This could also be as simple as a fuse, relay, resistor, or more complicated like a control module.

Below is the wiring diagram that we need to trace the voltage. I would suggest starting with going to the blower and check for voltage. If you have it then the motor is the issue.

If you don't then start going back in the system until you find it.

https://www.2carpros.com/articles/how-to-check-wiring

Please let us know what you find with this and we can go from there. Thanks

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