Question about M&S Systems AirVac AVP1200 Platinum Series Central Vac - 12,000 sq ft Bagged Central System Vacuum

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Central vacuum not sucking

Hi, for no apparent reason our central vacuum has not suction at all when we insert the hose into the suction hole. We've cleaned the filter and emptied the bag. The little white breaker switch won't stay in. Can you help?

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Re: Central vacuum not sucking

Usually when there is no suction, and the main unit is running, then either the hose or somewhere in the piping there is a clog. If you move the hose to another location, is there suction? If not then the hose is clogged. You can unhook the pipe at the unit, flip the switch to manual, if it comes on and there is suction there, then there is a clog in the piping, If in the piping, tear up small strips of paper and mark them by number and insert one in each inlet, run the unit on manual to suck them up, and which ever numbered strip isn't there in the bucket, then that is the inlet that is clogged.

Posted on Feb 05, 2008

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2 Answers

Central vac not sucking

Check for a plugged tube in the wall by listening to the motor when it's running. If it sounds like it's running too fast then there's an obstruction. If it sounds ok, then there's a disconnected tube somewhere in the system.

Sep 11, 2014 | Broan-NuTone CV353 Central Vacuum

1 Answer

Hi! My central vacuum has worked perfectly until just a couple months ago. I went to plug the vacuum in and it didn't automatically start the suction. When I clicked the switch to the right on the...

It sounds like you may have a bad hose. Plug the hose into the wall but rotate it 90 degrees from the normal position. This will bypass the switch on the hose. If you look at the wall end of your hose, you will see a metal band around it. That metal band is split into two sections. You are trying to plug in the hose so that the separation of the two pieces of metal is not lining up at the top of your inlet. If your vacuum turns on then you have a bad hose. It is possible that you have a bad switch in the hose, but it is more likely that you have a bad hose.

If your vacuum does not turn on, then you may have a break in your low voltage wire somewhere. You can check to make sure it didn't get disconnected at the unit. If the wire is connected then try to cross the low voltage wire from the relay at the unit with a small screw driver. If the unit does not turn on you have a bad relay.

If it is the relay, AirVac does not provide them. You would need to consider buying a new unit.

Jul 17, 2011 | M&S Systems AirVac AVP1200 Platinum Series...

1 Answer

We have suction at the outlets but when we plug the hose in we have no suction at the carpet vaccuum head.

Is there suction at the end of the hose? If not, the hose is clogged. Generally the blockage is located near the handle, but sometimes at the other end. Occasionally, if something long, like a straw, is sucked up, it will get caught somewhere else in the hose that's impossible to get to.
You can try to hold the wand end of the hose directly to the CV tank and turning it on. This should clear the clog. If not, hold the handle end to the blower of a shop vac or canister and turn it on. The other end should be either in a large plastic bag, inserted in the in port of the vacuum, or directed outside.
If there is suction at the end of the hose, the most likely place for a clog is at the elbow on the power nozzle or just behind the brush. This can be cleared by using the handle of a wooden spoon or similar blunt object to push the clog back out toward the brush.

If none of these help, take the vacuum to the nearest Aerus Electrolux store for assistance.

Jan 16, 2011 | Electrolux Central Vacuum

1 Answer

Poor suction in system - I have used shop vac to suction all three receptacles. Have checked bag and cleaned everything. Still poor suction. I have one receptacle in garage that works perfectly. Must...

Have you checked the hose for clogs or leaks. Clogged and leaky hoses are an area of concern with any central vac. Unless you hose has a hose sock, then wear and tear from constant rubbing on floors and other surfaces will result in holes and cracks. Pulling the hose can also result in leaks where the hose attaches to the handle and intake connector.
Mix some dish soap with water.
Use shop vac to blow air through hose, with other end capped or "clogged".
Apply soap solution to each end of hose.
If bubbles form, this indicates leakage. Hose will need to be replaced.

Oct 25, 2010 | Broan-NuTone CV450 Central Bagged Central...

1 Answer

Have a nutone CV-450. Suction is gone at the

The first thing to do is to disconnect the pipe coming into the unit. If there is suction there than you probably have a break in the line. If there is no suction when you disconnect the pipe coming into the unit than it is most likely the motor gasket. This gasket can sometimes get sucked into the motor causing problems. Remove the lid to the central vacuum, than disconnect the motor, you should be able to tell if maybe the gasket has been off center or if it has been sucked up in the motor.

Dec 13, 2009 | Broan-NuTone CV450 Central Bagged Central...

2 Answers

I sucked up some toilet paper in my central vac, and not it has almost no suction. How do I remove the block?

Toilet paper shouldn't clog a central vacuum system. There was probably already something in there that caught the toilet paper and made it worse. Here is a good resource that might help:

How to unclog a central vacuum system

Nov 06, 2009 | M&S Systems AirVac AVP1200 Platinum Series...

1 Answer


Check to see if you have suction at the outlet, if so
the plug is in the hose or wand. If no suction at the wall, check at the vacuum. If you have suction at the vacuum then the line from the vacuum to the outlet
that you were connected is where the plug is.
Try a plumbers snake to try to get plug out.


Oct 22, 2009 | Beam Industries 2900 Serenity Plus Central...

1 Answer

Clogged hose

if you have a drain auger then you can stick it in until it won' go any further then you have hit the sock.turn the cable and grab the sock and pull it to the surface.please leave feedback

Mar 30, 2009 | Electrolux Central Vacuum

1 Answer

Troubleshoot a problem with central vac - not in the vac hose

The only thing you can use really is a plumbers snake.
Not sure if thats what its called in the States. Its a long flexible metal spiral spring that plumbers use to clear blocked drains

Rob in the UK

Mar 07, 2009 | M&S Systems AirVac AVP1200 Platinum Series...

1 Answer


Disconnect the inlet piping from the unit and check the suction there. Be sure that the utility inlet on the unit is closed. If you have good suction, you have an open/broken pipe somewhere, or possible an inlet valve or vacpan that is not sealing when closed. The easiest way to find it would be to install your tubing back into the inlet of the unit, turn the unit on, and walk around the house listening for air leaks. Good Luck!!

Jun 29, 2008 | Broan-NuTone CV353 Central Vacuum

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