Question about 2001 Ford F250 Super Duty Super Cab

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A/C controler on Ford F-250 not working. A/C blows but to defrost only, nothing occurs when switching to vent control. Please advise. Thank You.

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No airflow at all or just not cold? The AC only runs in the AC , Max or either of the defrost modes to automatically dehumidify the air to reduce fogging. The other positions vent in outside (non conditioned) air.

Posted on Jul 09, 2010

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Posted on Jan 02, 2017

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vacuum control motor-i4bq0ig33y1522pr2d2rrkk3-2-0.gif

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Cold& warm/air would not blow out in any vents. Put in new direction switch, air blow in all vents except the defrost vent. Swtich on defrost and it blows in dash vents in your face and nothing coming out...


The switch that controls the air flow is either operated /controlled using either wire, pneumatics, or electrically driven/controlled. Make sure that all of the connections at the damper are intact and working properly. Pneumatically driven is usually the most common on todays vehicles, so make sure you don't have a vacuum leak on any of the damper hoses.
I hope that you have found this information to be useful, and if I can be of any further assistance, please let me know. Thank you for using fixya!

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