Airmaster Questions Answered

The AirMaster doesn't use bags and can't. You should replace the foam filter at the top of the debris tank under the motor. Since you have mainly carpet we highly suggest the Stealth Complete Attachment Kit. It is worth every dime guaranteed. Buy the corded version and choose the 30ft or 35ft hose. Tax is paid in California only.

That is correct, all our AirMaster systems as of 2006 only have a foam filter at the very top of the inside of the unit. That is why these units must be exhausted to the outdoors with an exhaust vent cap. Here are the foam filters, and the materials for exhausting.

There is a single foam filter inside the unit at the very top that needs to be beat out every couple months. We do sell replacements here https://builtinvacuum.com/retail/shopretail.php?part_no=731,731S. Yes, to get the very most from the central vacuum you should test drive our Stealth Attachment Kit with corded hose. Please take a moment to see it and read the hundreds of testimonials at www.builtinvacuum.com/stealth-kit/

The bottom, dirt collecting unit has two connections on top. The center one goes to the two ports on the underside of the motor section. Use a Y fitting and some 45 angles, central vacuum pipe and fittings, to tie them together. The off centered port on the top of the dirt collector is where the run to the home is connected, where the dirt will go in. There are two ports on the side of the top motor section that are the exhaust. You can run two exhausts a maximum of about 15ft each.

The C300 is 110 volt and requires a 20 amp circuit.

There is a single hook on the back of the C300 about 4 inches from the top to the top of the hook (which is about 1 inch long). A metal piece is mounted to the wall and holds the C300 securely in place. The metal piece looks like an upside down capital T only with two horizontal pieces. There are four screw holes in it. The first two are on the vertical bar. The first one is 1 inch down from the hook, or 6 inches from the top of the C300. The next hole is 4-3/4 below the first hole. The first horizontal bar is 7 inches from the hook bottom, or 8 inches from the top. The two screw holes on it are 6-1/4 apart from each other. The horizontal bar below that is 10 inches below the hook and has no screw holes but is curved to hug the shape of the unit.

The AirMaster C300 is manufactured in China.

Hello, you have options. You can replace the motor and clean the screen below it which should give you the power you have lost over the years. Also, a newer hose will deliver a lot more power. Older ones get tiny holes that equate to loss of suction and there airflow characteristics are poor. But if you want to replace the unit you can. There is no end to the possibilities. The latest units have incredible suction and run at 15 amps. The best of those is the SilentMaster S44 which you can gaze on here https://builtinvacuum.com/products.html. The AirMaster C300 is similiar to what you have now, it is bottom emptying. But we encourage disposable bag filter units such as the SilentMaster. Please call us for more information.

Hi, Sandi you will take one of these filters https://builtinvacuum.com/retail/shopretail.php?part_no=731,731S. The unit is dusty because it was designed to have minimal filtration, it is a cyclonic. When the motor dies we suggest a disposable bag version for sanity sake. Let us know if you have any more questions.

Hi, usually that is this part here https://builtinvacuum.com/retail/shopretail.php?part_no=406H,406HI.

Hi, it sounds like someone converted the unit to a bag type. It was probably a long bag with a hole towards the top like with our Closed Microfilter Bags. And yes, all the accessories you see will fit your system. We highly suggest a new kit, they ALL fit. Compare our Electric Kits and our Air Driven Kits to find a solution that works best for you.

The part number is #731 and can be found here, https://builtinvacuum.com/retail/shopretail.php?part_no=731&title=Filter+for+AirMaster+C95

The light with the picture of the bin means the debris collection bin needs to be emptied. The light with the picture of the filter means the filter needs to be cleaned or replaced.

You can use the retainer plate found here, https://builtinvacuum.com/retail/shopretail.php?part_no=730HAYR

No, the circuit limits the amount of amps allowed to run on the circuit but does not affect heat in the unit. If the unit is running hot, it is either a motor going bad or restricted air flow. Check your filters and have pipe line cleaned out to remove any buildup that can slow airflow. The motors in central vacuums use the air to cool down. Not enough air moving through the motors, too much heat builds up and trips the safety.

You can find replacement motors for Modern Day units listed by model number here, https://builtinvacuum.com/help/md/motor.html

In the troubleshooting chart see the box that has the #4 solution attached to it. Follow the directions in that box to test your inlets. https://builtinvacuum.com/flowchrt.html