Motors, Filters, and Maintenance for AirMaster Central Vac
All Products for AirMaster
Only hear a "click" when trying to start the system? Does it shut off and start back up in a few minutes? These are common signs of a dead motor which only leaves two options. Replace the motor or the replace unit. If you liked the amount of suction it originally had, then replace the motor. If you'd like stronger suction or if you'd like a cleaner disposal system consider a different unit or alternative brand.

How is a central vacuum maintained? Generally, the only thing required is emptying the main unit. Beyond that there are some upkeep and preventative options given below.
Replacement Chart for AirMaster Vacuum Motors, Filtration, & More
Model # Replacement Motor
 Filtration and Parts
C95
110-120 volt
Price / Details / Instructions
117507
(replaces 116507)

OR

 Filter #731
Relay #241
Transformer #232

Price / Details / Instructions
117500
C95
220-240 volt		 Price / Details /
Instructions
117743 (replaces 116743 and 117507)		 Filter #731
Relay #241
Transformer #231
C101
110-120 volt
Price / Details /
Instructions
116765
 Filter #731
Relay #241
Transformer #232
C101
220-240 volt
Price / Details /
Instructions
117157
 Filter #731
Relay #241
Transformer #231
C110
110-120 volt		 Price / Details /
Instructions
115334 (replaces 116465, can also use 117465)		 Filter #731
Relay #241
Transformer #232
C110
220-240 volt		 Price / Details /
Instructions
115684 (replaces 116717, can also use 117157)		 Filter #731
Relay #241
Transformer #231
C180
110-120 volt		 Price / Details /
Instructions
119412 (replaces 116392 and 117465)		 Filter #731
Relay #241
Transformer #232
C210
110-120 volt		 Price / Details /
Instructions
(takes 2 motors) 115334
(replaces 116465, can also use 117465)		 Filter #731
Relay #242
Transformer #232
C210
220-240 volt		 Price / Details /
Instructions
(takes 2 motors) 115684
(replaces 116717, can also use 117157)		 Filter #731
Relay #242
Transformer #231L
C212
110-120 volt
Price / Details /
Instructions
(takes 2 motors) 116472
 Filter #731
Relay #242
Transformer #232
C310
110-120 volt		 Price / Details /
Instructions
(takes 2 motors) 117507
(replaces 116507, can also use 116119)		 Filter #731
Relay #242
Transformer #232
C310
220-240 volt		 Price / Details /
Instructions
(takes 2 motors) 117157
(replaces 116157)		 Filter #731
Relay #242
Transformer #232
Basic Maintenance for AirMaster Vacuum

Filtration Maintenance
Much like a regular portable vacuum, the basic maintenance of a AirMaster Central Vacuum System emptying the dirt receptacle on the main unit. To do this, remove the base of the unit with a twist or by unlatching, then dump the debris. Reach up and remove the mesh filter. To further clean the filter, wash and it thoroughly air dry before installing. Above the mesh filter is a screen that needs to be clear from all debris.

Motor and Vacuum Maintenance
There is nothing to lube or oil in or on the central vacuum system, including the AirMaster motor, AirMaster vacuum motor unit, or AirMaster vacuum cleaner. For the indoor vacuum brush, the fibers that get wrapped around the brush roll of the vacuum cleaner head should be cut out and removed on a regular basis.

Pipe and Hose Maintenance
We recommend cleaning out the hose and piping system at least once per year. The best way to do that is with Tornado Central Vacuum Maintenance Cloths. They do a couple of things. First, they push through the pipes, bringing along stalled out debris. Second, they deodorize the hose, pipes, and unit. Some amazing results can come from this product. The vacuum hose will last longer if it is stored on a hanger, always being detached from the vacuum after each use. See if any of these Storage Items can help your situation (scroll to the bottom of the Accessory Page).

Email Reminders to Empty Vacuum
Sign up for the Free Quarterly Email Reminders to dispose of your central vacuum debris. Let the trash build up can reduce suction, making the unit run hotter and clean less efficiently.

Replacement Motors and Parts for AirMaster Vacuums

Troubleshooting
Self diagnose your system using this Interactive Troubleshooting Guide and Solutions.

Motor Replacement
Contact a local dealer for service, or consider doing it yourself. Motors on the AirMaster vacuum have a few fasteners and wires that need to be unattached, the reattached on the new motor. It should take less than one hour. First, turn off the circuit breaker or unplug the central vacuum unit. Then, access the motor by releasing the outer housing. Use the chart to find the right replacement motor for your AirMaster motor model. A motor may have many numbers on it but typically the real motor number starts with 11. Here are detailed AirMaster Motor Replacement Instructions.

Circuit Board, Relay, Transformer, MiniBreaker
Separate transformers, relays, and minibreakers are not available here for AirMaster. However, when a circuit board is installed, the most common board replacement for AirMaster vacuums is the Vacuum Motor Circuit Board for Single Motor Units 110 Volt. The board is strong, yet generic and may need to be retrofitted. There are other Generic Circuit Boards here for units with different voltage and two motors. These robust generic boards are made by the leading industry supplier. An electrician will be able to replace the circuit board, or replace the relay, transformer, and minibreakers with a circuit board quite easily. Print and use the large photograph of the board as the wiring guide.

Motor Carbon Brush
The AirMaster motor has two carbon brushes that wear down and can be replaced before they damage the motor. However, the AirMaster motor may go bad for other reasons while the carbon brushes remain fine. AirMaster motor brushes can be checked every few years and replaced if the 3/4-inch-long solid carbon is worn down. Definitely replace if one or both are down to 3/16 inch. Type the motor replacement number (not model number) in the search box and the motor brushes will come up along with instructions.
 
Note: AirMaster Vacuum is a registered trademark of M.D. Manufacturing, Inc.
Need more help? Try our extensive and helpful AirMaster Vacuum Questions and Answers or give us a call at 1-800-997-2278 M-Th 7 a.m. to 5 p.m. Pacific Standard Time.