MD Central Vacuum
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Since 1961

AirForce Central Vacuum Parts - Filters, Motors & Parts

Motor Replacement Tips

  • Dying motors just stop, but can randomly work.
  • Motor is usually dead if you only hear a click or smell electrical.
  • Motor replacement instructions here. Skill level medium.
  • Find a replacement motor using the model search below.

Maintenance Tips for AirForce

SPECIAL NOTE:
All AirForce motor issues need to be resolved with the original installer or a customer service representative at MD Manufacturing. Please look up your local dealer and ask if they installed the system, call us at 1-800-997-2278, or email us through this form.

Filters, Motors & Parts for AirForce Vacuum Power Units

Search Model Number:
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(Results include all instances, not just model number.)
Model # Motor 1 Motor 2 Filter Circuit Board

Only hear a "click" at the motor when trying to start the AirForce system? Or, does it shut off and start back up in a few minutes? These are common signs of a dead motor, which leaves two options: replace the motor or replace the unit. If you liked the amount of suction the AirForce model had, then replace the motor using the information above. If you'd like stronger suction, or a cleaner disposal system, then consider a different unit or alternative brand from MD Vacuum. Our units are Assembled in the USA with the finest materials and backed with excellent customer service.

Filtration Maintenance

Much like a regular portable vacuum, the basic maintenance of a AirForce Central Vacuum System is changing the bag in the main unit. To do this, remove the top of the unit, remove the black gasket, if installed, then lift the paper bag and support bag out together, and place a paper bag into the trash can. Put a new paper filter into the support filter, wrapping the elastic over the edges. Set the filter into the vacuum putting it below the necks of the intakes. Some vacuums have a closed bag that slips off an elbow and a new bag is simply slid back on. Below the support filter is a mesh filter that keeps large debris out of the motors if there was an accident with the main filter. The AirForce Owner's Manual is available here and please note that over the years the look of the vacuum has changed.

AirForce Main Motor Maintenance

How a Vacuum Motor Works

All AirForce units used permanently sealed motors in their main collection unit. They require no lubrication or oiling. Routine maintenance for typical residential usage should include checking the motor brushes approximately every five years. While checking the motor brushes, make sure the center motor shaft is solid and has no play or wobble. If it does, the bearings are going out and the motor will need to be replaced. If the motor brushes are worn to 3/16 inch long, replace the motor brushes.

If the unit does not have any paper or cloth bag filtration, then a certain volume of debris may accumulate on the motor's internal fan blades. This is not easy to remove and any attempt to remove it has the high possibility of offsetting the balance of the fans. An imbalanced fan causes premature motor failure on the motor bearings.

Here are instructions for checking and replacing vacuum motor brushes. Motor brushes conduct electricity into the motor while touching the center shaft. Over time, they wear down. If they wear all the way down, they can damage the motor.

Click on the image above to understand how a vacuum motor works.

AirForce Pipe System Maintenance

AirForce Vacuum Pipe Maintenance Sheets

The pipes in your system should last for the lifetime of your home if properly installed. If black carbon dust has gathered on the exterior of the pipes through static electricity, it can removed with a damp, soapy cloth.

We recommend cleaning out the interior of the piping system at least once per year. The most effective method is with Free Flow Central Vacuum Maintenance Sheets. They do a couple of things. As the sheets are pulled through the pipes, they push along all kinds of items that sit in dead spots, as well as deodorize the hose, pipes, and unit. Some amazing things can be pushed out from your AirForce Central Vacuum pipes, resulting in better suction. We have seen Match Box Cars, C02 cartridges, pencils, rocks, paper clips, and huge clumps of nasty debris.

AirForce Vacuum Hose Maintenance

Your vacuum hose will last longer if it is stored on a hose hanger, always being detached from the vacuum after each use. Simply create four or five loops and hang it up. Consider a Hose Cover to protect the hose and your baseboards. See if any of these Storage Items can help your situation. Consider hose hangers, wand hangers, hose straps and more. You can get everything off the floor for a more organized closet.

Reminder Emails Sent to Empty Your AirForce Vacuum

AirForce Filtration Empty Reminder

Sign up for Free Quarterly Email Reminders to remind you to dispose of your central vacuum debris. Operating your unit with a full filter can reduce suction, making the unit run hotter and clean less efficiently. Your email will not be used for any other purpose, or be sold or borrowed. We simply want to help you remember to keep your AirForce Central Vacuum working at its top performance.

(The image above does not reflect all types of central vacuum filtration.)

Click Here to Start Your Reminders.

Troubleshooting Your AirForce Central Vacuum

AirForce Vacuum Troubleshooting and Repair

Self diagnose your system using this Interactive Troubleshooting and Repair Solutions Guide for AirForce Central Vac. We guide you through a simple, methodical deduction of tests and symptoms to find the problematic source of anything from:

We then offer a description of the problem and solutions to repair your AirForce Central Vacuum. We also have 100s of local, independent dealers you can reach out to for help.

Visit the Troubleshooting and Repair Solutions Guide for AirForce Central Vacuum

AirForce Central Vacuum Motor Replacement

AirForce Vacuum Motor Replacement Help

Please contact MD Central Vacuum at 1-800-997-2278 if you are experiencing any problems with your Airforce Central Vacuum.

Circuit Board, Relay, Transformer, MiniBreaker

AirForce Circuit Board Replacement

Please contact MD Central Vacuum at 1-800-997-2278 if you are experiencing any problems with your Airforce Central Vacuum.

Motor Brush Help for AirForce Central Vacuum

AirForce Motor Brush Help

The AirForce motor has two carbon brushes in each motor that wear down but can be replaced before they damage the motor. AirForce motor brushes should be checked every five years in typical residential applications and should be replaced if the 3/4 inch-long solid carbon "brush" is worn down to anywhere near 3/16 inch. Here are instructions for Checking and replacing vacuum motor brushes. Motor brushes conduct electricity into the motor while touching the center shaft. To find the replacement motor brush for your AirForce Central Vacuum, type the motor replacement number (not brand model number) in the search box and the motor brush will come up in the search result; instructions are on the motor brush page.

Know that the AirForce motor may go bad for other reasons, such as bad bearings or dust build-up in the motor (both are not repairable). If your motor brush doesn't show up under your original motor model number, replace the motor, not the motor brush.