My Panasonic vacuum sounds weird I cover a little blower vent and it goes back to normal sounding Just changed bag filter doesn't look real dirty, never changed

Those machines measure the suction, check the normal spots for plugs, the hose, wand, in the base where the dirt goes 90 degrees. Unhook things and reconnect. Use your ears, the motor will change pitch if you connect to an area thats plugged. If it's just not plugged it may be a very full bag or dirty filters restricting the air flow. That light simply says when there's not enough air flow.
If it's not plugged it's the filter I'd suspect. They're cloth like material so its hard to tell when they're too plugged. I'll include links to the correct filters for that machine.
Tall Filter

http://vacuummedic.com/product.php?id=223


Exhaust Filter
http://vacuummedic.com/product.php?id=219



Happy Vacuuming!The Vac Dr.

Hose or tool is probably clogged. Is this an upright? Bagged or bagless? Have you changed the bag and filters? Cleaned out the brush and hose that goes from the brush area to the collection bag/cup? The only reason for a vacuum cleaner to lose suction but still work is a clog or dirty filter which blocks the air flow. Follow the air flow from the brushes to the bag/dirt cup. If the machine is bagged, change the bag. I use another vacuum cleaner to do this.While your at it, might as well change the belt.

Many vacuums have internal thermal switches that need to cool to allow the vac to operate. After 30 minutes, check all 3 air filters and try again.
Gary

Dismantling the vacuum probably won't help much, and reassembling can be a bear.
To check the intake, remove bag and look into bottom of bag well. It there's a filter there, remove it and check intake at bottom of bag well. Clear if there is.
The afterfilter on a canister is located beneath the air diffuser grid on the top of the machine where the tools can be attached. Remove this cover and there should be a white filter. Yours is probably black, or at least real dirty, if it's never been changed. This also blocks the airflow, reducing suction, and potentially damaging the motor. Extremely dirty filters are an indicator of how much dust is getting into and through the motor. This is usually caused by using generic bags rather than the genuine Electrolux, now Aerus, bags.
It is also an indicator of another internal problem on some other Aerus and pre-Aerus Electrolux vacuums.

Hello,

If the vacuum sounds like it usually does and still doesn’t pick up, you probably need to replace the belt. To check this, turn the vacuum on and lay it down sideways. Check to see if the roller is spinning. If it's spinning, turn the vacuum off. Stand it up and turn it back on. Do you hear the roller spinning. Some belts stretch over time. If the roller was spinning when the vacuum was on it’s side and stops when the roller has some pressure on it (your carpet), change the belt.
A clogged vacuum cleaner usually sounds "clogged". The noise the vacuum normally makes will seem muffled. First, Unplug Your Vacuum. Then change the vacuum bag or empty the dirt cup. If the bag is filled up more than halfway, this could reduce your suction. Throw out the bag. Look at the area that holds the dirt cup or vacuum bag. Remove any debris. Look for a filter in this area. If you find a filter make sure it's relatively clean. A clogged filter will shorten the life span of your vacuum. Make sure your filter is back in place or replaced, and reinstall the vacuum bag or dirt cup.
A lot of the current style upright vacuum cleaners have attachments and a hose on board. If you have a vacuum hose on your upright, pull it out like your going to vacuum with it. Look at the area you removed the hose from. Remove any debris. I recommend wearing gloves, and try not to use any sharp tools like a needle nose pliers that might puncture your vacuum hose.
For the final step in this vacuum cleaner repair, place the vacuum in a position where you have a birds eye view of the bottom plate. You can usually see if there is any debris that requires removal.
Here is a link that will take you to a site that shows how to access your machine to change belt or look for clogs.

http://www.info-vacuum-cleaner.com/hoover-vacuum-cleaners.php

Hope this helps

Sounds like it is over heating do to a dirty filter. Or there is something blocking the air flow in the vacuum.

Jim

Hi there SmartAlec from Nelsonvacuums.com.au here.It sounds like a blockage of some kind. The best way to find it is to set the machine up for normal vacuuming and remove one component at a time until the suction returns. eg turn on and feel suction under floor head - not good? then remove the rod, then the hose.
Once at the machine on its own it gets a little triky as i don't know which model you have. However if you have a bagged model remove all the filters and the bag and retest. There will be at least 2 filters, one before the motor and one after (maybe under the vacuum or right at the back). If it is a bagless model even though the filter may look clean it is probably blocked with very fine dust. If suction returns when the filter is removed then you need to buy a new filter. I am a nilfisk vacuum cleaner agent so i can supply a filter for you.
If this still doesnt help you are welcome to call me if you live in australia my contact details are on my website www.nelsonvacuums.com.au.
Hope this helps !.
Happy vacuuming :)

take the bag out and the filter,put the coveer back on and start it up.see what the light says.if there is a clog somewhere and air is not getting into the bag it will read full.if that workd then put the filter back in and start it up.when the bag is in and hooked up does it expand when you turn it on.try putting the bag in and no cover and see what the bag does.please leave feedback

Has the cover got tabs that is suppose to catch when it's installed? check and see if there are broken plastic ends either on the vac or cover. It should be able to catch to hold it on.

I started by replacing the bag. No change.

I opened the bag compartment and noticed that the dirt sensor went to clean, but only when the compartment was open.

I cleaned out the foam filer at the bottom of the bag compartment. No change.

I took off the air outflow filter and cleaned it (Should have replaced it, but don't have a spare right now.). No change.

Unscrewed the hos from the back of the vacuum. The dirt sensor again went to clean.

I had isolated the problem to the hose. I hooked the hose back up and the dirt sensor went to dirty again.
The problem was that the hose was dirty on the inside. To clean the hose, I stretched it out little by little and banged it a little to loosed the dirt with the vacuum running. After the hose was cleaned, the dirt sensor had no problems.