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I need a part for a Shop-Vac model number 90LN650C. The part number is 7413100 inlet deflector

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How to diagnose a clog in your Central Vac and how to remove it


Symptoms of a clog
Low Suction/No Suction
No suction at Inlet

Tools required
Wet/Dry Vac or vacuum with decent suction and a hose
Phillips Head Screw Driver
Metal Coat hanger (straightened out)
Flashlight

First things, first, make sure your canister is empty at the unit. I know, most people would have already checked this but I have been to a lot of client's homes and this was the issue. They were full or almost full. So just check it before you go to do anymore diagnosing. I suggest emptying it anyways, this way you can see what you clogged in your unit

Now if your machine has a utility valve on the unit turn on the manual over ride switch on and lift the utility valve and if you have suction your machine is fine, you have a clog. If you have no suction or poor suction
-Canister not attached properly
-Filter clogged
-There is a disconnect of pipe within your walls (I've seen it and it renders your system useless and is going to be expensive to repair the system)
-Your motor is going in your system (Your vacuum should sound like grinding metal and chances are it's throwing sparks and smells of burning electrical, turn the unit off immediately and unplug power cord) Your unit will need a new motor or you will need to replaced the whole unit. Sometimes can be cheaper to replace the unit.

So now back on track here, we are going to say the vacuum has great suction and is running smoothly.

Check your hose for clogs, easiest ways are to plug the hose into the utility valve and turn on the machine manually at the switch.
If you do not have a utility valve on your unit (this is where the other vacuum comes into play) plug your central vacuum hose on the end of the shop vac hose. Most hoses are standard and slip right on over the end of a shop vac's hose end (1 1/4 inch end). Turn on your shop vac and feel the suction at the end. It may not be as powerful as your CV but it should be comparable.

If the hose checks out to be free and clear we have a clogged system.

Now lets move to the inlets throwout your home, first we are going to plug our hose into the inlet that is nearest to the unit. If there is little or no suction we know there is an issue either in the distance between the nearest inlet or there is an open/broken valve.

Open/Broken valve (CV will not provide optimum suction with a open/broken valve)
-Plug the hose in and activate unit
-Check all inlets for proper seal, you will hear an annoying whistle or you will hear a gust of air from an improper inlet door closure. (Do this as quick as possible, if it is a clog you are putting strain on your motor, but if you vacuum on a regular basis chances are you know if there are whistling noises or missing pieces of an inlet. If you are missing an inlet door, replace the inlet. If all is checked out to be good, lets go back to unclogging again.

If there is suction at this inlet you know there is no clog between this inlet in the unit, try all inlets from nearest to farthest away. If you try your next inlet and have weak to no suction you found your point of a clog. This is where you will start to unclog your unit.

Take the hose end of your shop vac and insert it into your inlet. Turn the shop vac on and remove the hose quickly to create a seal and lose a seal. You should start to hear items moving through the line.

Now take your CV hose and insert it into this inlet, activate your CV and check suction if there is more suction, your slowly making progress.

Take a flashlight and look into the inlet to see if you can now see the obstruction. If you can, get your coat hanger out and go fishing. It may be easier to remove the inlet from the wall. Your basic valve is safe to remove. If you have a supervalve, do not remove, there is high current installed in the upper portion of the inlet for your power nozzle.

Repeat the Shop Vac suction and stop and the CV suction and stop until you clear your items.

This is going to take a few minutes of tugging between two vacuums. Eventually it will free if it went in, it has to come out. At the end of the day your basically playing tug of war between your Shop Vac and CV. But if all goes to plan, the clog will end up in your shop vac or in your CV unit.

Good Luck!

on May 13, 2014 | Vacuums

1 Answer

Switches will not turn off unit. model #cv450w


If the switches on the hose will not turn off the vac you have a short in the wiring of the vac pipe system or a defective relay on the circuit board. Plug the vac in again without the hose and disconnect the thin low voltage wiring were it plugs into or screws onto the vac.
If the vac continues to run once disconnected from the low voltage circuit you have a defective relay in the vac itself. Some are circuit board mounted , others freestanding. To avoid a service call you can take the tank off the wall and take it to a pro shop or remove the top hosing if you are confident and check out the relay for a replacement part.
If the vac stops your issue is in the house. Has any painting been done or any inlets removed lately.. check that area first for a short at the inlet. Go back to any and all inlets and remove them one at a time checking the mounting screws and backing plates for loose wiring which is touching either the metal inner wall plate in the wall or a common screw . Test the vac as you go.
If this does not help, you will need to examine the wiring in the house , running along the pipe. Again if anything has been disturbed recently, near the vac, or near any piping that would be your first suspect area.
Post back to advise.

Oct 18, 2009 | Broan-NuTone CV350 Central Vacuum

1 Answer

I have a Nutone central vacuum model number CV450W that was working great until I recently removed the hose and it now runs continuously until I pull the plug....any suggestions please


Disconnect the thin low voltage wiring between the vac and the rest of the house. If the vac continues to run you have a defective relay in the vac motor housing.
If the vac stops you have a short in the wiring in the house, likely behind an inlet in the wall.
If any inlets have been disturbed for painting or renos lately that would be the first spot to look in the house for a problem. Look for wires behind the inlet valve which are touching against each other or a mounting screw or against a metal mounting plate behind the inlet. Start at the last inlet used. Be careful not to loose the spring under the screws where the wiring attaches to the inlets

Oct 08, 2009 | Broan-NuTone CV450 Central Bagged Central...

1 Answer

No suction


If this is an Electrolux, start by testing the suction at the inlet nearest the vac or at the 30 degree elbow on the left. If you have suction there but not elsewhere, and can hear the vac running when the hose is plugged in you have blockage in your main line between the vac and the rest of the house.
You should first test the hose, then the inlets one by one. Drop a quarter into the handle of the hose and shake it through to the far end. If it comes out your hose is clear. Next mark a tissue with a number and **** it into the hose at each inlet, checking the bucket to see if teh tissue has claered the lines. If none of the tissue make it to the bucket, , get a shop vac, open the inlet nearest the vac and **** the obstruction backwards out the inlet. As blockage clears you will hear thinks moving in the pipe. Post back with results

Oct 04, 2009 | Electrolux Centralux Vacuum

2 Answers

Old shop vac


Hi,
Yes there should be a filter fitted onto the top section.

For suppliers, it would be cheapest to find your nearest stockist, or buy online and have it shipped. It's still current stock - so spares should be readily available.

Sears stock it -
CRAFTSMAN FILTER

Thank you for using Fixya,

Sep 22, 2009 | Craftsman 17765 Canister Wet/Dry Vacuum

2 Answers

How do i go from dry vacuming to wet vacuming with the rigid shop vac


can I run my sears shop vac without the paper bag, for dry pickup?

Jan 29, 2009 | Ridgid 9 Gallon Wet/Dry Shop Vac 96882...

2 Answers

Need an owner's manual on line


http://geeksquad.fixya.com/ThreadView.aspx?prdid=19255&thid=658668
Need an owner's manual on line
Posted by LinJay on Jun 09, 2008
I have lost my owner's manual for my shop vac and need to figure out how to set it up so I can pump out my flooded basement using a garden hose.
Is there anywhere I can find an owner's manual on line??
The model stated on my vac is not what I clicked on your site....my vac states:
Model QPV 10.5


Hello,
I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure. I am supplying you with the contact for the Shop Vac Factory Service for owner’s manuals listed below: for the website and the customer service line, but make sure you include the Shop Vac Model # and the Serial # as well. 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://shopvac.com/contact.asp Customer Service 570-326-0502 Phone #
Shop-Vac Corporation Customer Service 570-326-7185 Fax #
2323 Reach Road
P.O. Box 3307
Williamsport, PA 17701
Hours are: Monday thru Friday 8:00 am to 5:00 pm (EST)
Thanks, Don the Vac Man
Go Ahead. Use Us.

Jun 09, 2008 | Shop Vac 584-06-00 Canister Wet/Dry Vacuum

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