Hi we have a central vacum system (canister). Sometimes when you plug in the hose it works fine othertimes it doesn't work?

The power head requires 120 Volts. Some hoses have a receptacle in the handle for the power head plug, and the hose has a cord at the wall inlet end that plugs into a receptacle. Some hoses have a plug at the wall inlet end that plugs into a 120Volt receptacle built into the inlet. The hose plugs into this receptacle when you push the hose into the inlet. The power for this built-in receptacle is wired with line voltage when the system is installed.

Yes. A clog will cause the motor to work harder resulting in a higher pitch. To prevent the motor from burning out the clog needs cleared ASAP.
This could be something as simple as cleaning the filter, but it could also be a blockage in the hose. This will be more difficult to clear, but if you can attach the handle end of the hose to the vacuum and turn it on, it may clear it. If not, you'll probably need to take it to a repair shop.

sounds like there could be a clog in the lines, Check the pipes running through your attic/basement, and see if there's something blocking the piping.

If you can't seem to find the problem, I'd suggest looking into having someone who services central vacuums come and take a look. They'd have the proper tools and knowledge to help you in person

hi there. You will need to slide something into the hose and force the bottle cap out. You can use something like a garden hose if it will fit, or a dowel or a piece of metal rod. If you don't have anything like that go to a home depot and find something that will work.

sounds like a bad relay in the tank just a simple repair but should be done by a vacuum tech or electrician. Could be a motor is nothing is starting at all, but not as likely.

These problems are nearly exclusively caused by a bad circut board and replacing it is the fix. Bad boards can cause many different effects so its nearly impossible to be sure. The 9v signal wire is not enough to short out an entire unit so it is unlikely the hose. If it is a direct connect system and you are pulling power from the 110 somehow that would cause main unit problems but that is unlikely at best. Sounds like a failed board to me.

Best of Luck

Do you have good suction right out of the canister without the hose attached? If so, AND your hose isn't plugged, you must have a pretty good sized hole somewhere in the hose. If you don't have suction at the canister, pull the filter cover off the top-back of the machine and remove the filter. This is where all of the air that the machine pulls in is exhausted. If something is plugged here, it will greatly reduce your suction. If you still haven't found the problem, you could have a problem with the fan assembly on the motor. But usually this is accompanied by some noise from the motor, but not always. Good Luck!!

What I'm hearing is the canister(Not the Powerhead) portion of the unit is running all the time unless you unplug it. this problem could be caused by a short in one of your low voltage lines running through the house. To determine that just unplug one/both low voltage lines from the canister, and plug it back into the recepticle. If it doesn't start up then you figured out that it is in the house somewhere and not the unit. If it is in the house I would check for water in the valves, or you're just gonna have to chase down the short. If the unit is still running with the low voltage wires disconnected then it is probably the relay on the board, which means you will need a new board unless you're expereinced at soldering and want give it a try replacing just the relay. Which you'll probably need a new board by the time you're done anyhow. LOL

Good Luck

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Generic problem for all Vacuums
Clogged vacuum hose, new carpet
Posted by dpatricksr70 on Jun 20, 2008
Clogged vacuum hose, new carpet, have been through two vacuums already.

Hello,
I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure. When vacuuming it is a good idea to give your vacuum a burst of air once in a while to clear the hose and push the dust and dirt into the bag, simply just lift up on the powerhead or vacuum hose and give it a burst of air every 5 or 10 minutes. Also, we you like to know the brand name and model # of the vacuum. Some of the ways are to use a round metal ball or marble to see where the clog is in the hose and then you can use such things as the end of a broom handle, or you can use a wire coat hanger and bend the end to make a little hook and then try to grab the clog and say fish it out – or if you have another canister or shop vac you can tune on both canisters and try to pull the clog apart and sometimes that works as well – just be careful so that you do not puncture the electric hose because they are expensive in the area of $100.00 or more in some cases. If you need further assistance please feel free to contact your local vacuum cleaner dealer in your area.
So if you need further assistance, please feel free to contact your local vacuum cleaner dealer in your area or in the yellow pages, or contact the factory phone number or website to further assist you with your questions.
Thanks, Don the Vac Man
Go Ahead. Use Us.

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Generic problem for all Vacuums
I have a 3 year
posted by patfitz on May 03, 2008
I have a 3 year old NuTone CV 353W central vac system and recently the switch on the hose handle does not turn the system on from any outlet in the house. I have to plug the hose into the outlet and then turn the unit on from the switch on the canister. Any help would be greatly appreciated. Thanks

Hello,
I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure. There are a couple of things that come to mind, 1st. you may have a bad switch in the hose and in most cases that can be repaired – if not you would have to purchase a new vacuum hose. 2nd. You may have a bad inlet valve in your hose and most of them are low volt of which would only cost less than $10.00 and can be replaced yourself unless you have what they call a SuperValve of which has 2 low volt wires and then it is wired to your home electricity and that should be replaced by an licensed electrician. It is a low volt and high volt inlet.
#3. the last thing you may check id that you may have a bad relay in the canister itself. Because you should be able to turn on the Central Vac with the switch on the hose and everything should work just fine . feel free to contact your local vacuum cleaner dealer in your area of call the Nutone Factory cust serv line for further assistance. So if you need further assistance, please feel free to contact your local vacuum cleaner dealer in your area or in the yellow pages, or contact the factory phone number or website to further assist you with your questions.
http://nutone.com/ Customer Service
Nutone Inc.
9825 Kenwood Road
Suite #301
Cincinnati, OH 45242
Customer Service 1-888-336-3948
Technical Support 1-888-336-6151
Thanks, Don the Vac Man
Go Ahead. Use Us.