Question about Kenmore 34720 Upright Vacuum

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Looud noise and no suction

My Kenmore Quick Clean is making a loud noise and will not pick any thing up. I have already cleaned out the hose, checked the wheel, checked the belt and cleaned out the filter. Why isn't it picking anything up? I can deal with the noise.

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The motor impella is blocked. you have to access this from the bottom

Posted on Jan 23, 2009

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My Kenmore bagless intelliclean vacuum is making a loud noise mainly when it is vacuuming on the highest setting (when the light is red). We have taken it apart and cannot find a clog. It has also lost...


This might help, it was posted on a previous problem but is the same issue you are having it seems: "Here is a possible solution. If the vacuum sounds normal when the green light comes on, then the issue is a suction bypass. Kenmore built a suction bypass in to help cool down and protect the motor should someone either never clean the filter, empty the canister or somehow manage to clog the hose. There is a spring holding the bypass closed and is overridden by vacuum suction. I guess the spring becomes weak, allowing high suction to pull it open which in turn reduces suction so it closes again. It can do this several times per second making a loud racket and slightly affecting performance until the sensor goes green, then the vacuum suction is too low to overcome the spring tension thus why it sounds fine then. The trick? The very hard way (what I did) was to open the vacuum, open the casing where the spring is and pull it apart slightly to increase the spring tension. The easy way is to put tape over the hole where the bypass is. The inlet is under the hose track on the back on the right side as you're looking at it. The hole is about the size of a quarter and you'll see fins across the hole. The tape would keep the suction. The motor would still pull back the bypass but since tape is applied, there would be nothing to reduce the suction thus keeping performance and reducing the noise. However, this circumvents the intended design so you do so only at your own risk."

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1 Answer

My kenmore quick clean vacuum cleaner has no suction. Just seems to blow the dirt out and away from the cleaner. The canister is empty and the filter is clean, so what's going on?


Hi,
The hose or hoses are plugged...take all the hoses apart and stretch them out... run a stiff wire through them or something like a broom handle...you will find that they are full of dust and dirt inside...

heatman101

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I have unscrewed all the screws and can't get bottom off.


Here is a possible solution. If the vacuum sounds normal when the green light comes on, then the issue is a suction bypass. Kenmore built a suction bypass in to help cool down and protect the motor should someone either never clean the filter, empty the canister or somehow manage to clog the hose. There is a spring holding the bypass closed and is overridden by vacuum suction. I guess the spring becomes weak, allowing high suction to pull it open which in turn reduces suction so it closes again. It can do this several times per second making a loud racket and slightly affecting performance until the sensor goes green, then the vacuum suction is too low to overcome the spring tension thus why it sounds fine then. The trick? The very hard way (what I did) was to open the vacuum, open the casing where the spring is and pull it apart slightly to increase the spring tension. The easy way is to put tape over the hole where the bypass is. The inlet is under the hose track on the back on the right side as you're looking at it. The hole is about the size of a quarter and you'll see fins across the hole. The tape would keep the suction. The motor would still pull back the bypass but since tape is applied, there would be nothing to reduce the suction thus keeping performance and reducing the noise. However, this circumvents the intended design so you do so only at your own risk.

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Oct 16, 2009 | Vacuums

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My upright kenmore progressive vacuum will not suction up when using the sweeper. It will suction things when I use one of the tools. I have put in a new bag and have tried to see if anything is blocking...


I believe on the front top part of the vacuum is a cover. you need to take it off. behind it you will find at least two filters. You will need to replace the hepa filter and the other one should be like a thin black sponge, you can just wash that one.
If its not that then there are two clips on either side of the base of the vacuum. Pull those clips outwards, then lift the top off, you will see the tube that the hose attaches to. Pull the hose off and check for debris in there.
I hope that works for you.

good luck

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Here is a possible solution. If the vacuum sounds normal when the green light comes on, then the issue is a suction bypass. Kenmore built a suction bypass in to help cool down and protect the motor should someone either never clean the filter, empty the canister or somehow manage to clog the hose. There is a spring holding the bypass closed and is overridden by vacuum suction. I guess the spring becomes weak, allowing high suction to pull it open which in turn reduces suction so it closes again. It can do this several times per second making a loud racket and slightly affecting performance until the sensor goes green, then the vacuum suction is too low to overcome the spring tension thus why it sounds fine then. The trick? The very hard way (what I did) was to open the vacuum, open the casing where the spring is and pull it apart slightly to increase the spring tension. The easy way is to put tape over the hole where the bypass is. The inlet is under the hose track on the back on the right side as you're looking at it. The hole is about the size of a quarter and you'll see fins across the hole. The tape would keep the suction. The motor would still pull back the bypass but since tape is applied, there would be nothing to reduce the suction thus keeping performance and reducing the noise. However, this circumvents the intended design so you do so only at your own risk.

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Check underneath, behind the roller where the opening to the hose is. I had the same problem that was caused by a Lego lodged in the opening and when it was removed, the vacuum worked like a charm.

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http://dysonmanuals.llc.nu/

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