Question about Craftsman 17765 Canister Wet/Dry Vacuum

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Losing suction filter clean,hoses clear,output blower good,but very poor suction

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  • lw269 Jun 12, 2008

    found the problem. there is another filter on the underside of the motor assy.a quick release allows you to remove assy.turn it upsidedown and remove 3 screws.remove cover and clean washable filter.reverse steps to reinstal. this fixed my problem.

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If the blower is much stronger than the suction, you may have an air leakwhere the cover fits on tank or possibly a warped tank or cover. feel all around the unit for air being drawn in somewhere besides the hose. try it without the hose on and block the inlet for a couple seconds to see if the unit leaks air in. also replace the filter , dont try to clean it, the pores clog and reduce suction and damage motor.

Posted on Jun 12, 2008

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Air filter:
If the vacuum cleaner won't pick up dirt and has no suction the air filter might be clogged. Remove the filter and either clean or replace it as needed.
Exhaust Filter If the vacuum cleaner won't pick up and has no suction the exhaust filter might be clogged. Remove and clean the filter, replace it if its torn or damaged.


Vacuum Hose If the vacuum cleaner won't pick up and has no suction the vacuum hose might be clogged. Remove the hose from the vacuum cleaner, stretch it out straight, shine a bright flashlight in one end and try to see light through it. If no light can be seen, use something to run through the hose and free up the obstruction.
Vacuum Bag If the vacuum cleaner won't pick up and has no suction the vacuum bag might be full. Clean or replace the bag as recommended by the manufacturer.

Dust Cup AssemblyIf the vacuum cleaner won't pick up and has no suction the dust cup assembly might not be installed tightly, or it might be cracked or broken. The dust cup must seal tightly in order to produce the right amount of suction. If it is cracked or broken, replace it. Most glues and adhesives will not successfully seal the crack.
Blower Wheel If the vacuum cleaner won't pick up and there is no suction, the blower wheel might be jammed or broken. Check the blower wheel to be certain it turns freely. If it doesn't, check to see if there is anything rubbing against it. If not, but it's hard to turn, the motor is most likely the problem.
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1 Answer

No sucking


if you have no suction - then the problem could be a dirty filter or a blocked suction hose. clean the filter and check the hose from top to bottom for blockage. if all is clean and clear and you still dont have suction then the problem could be a bad vacume suction motor.

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Check for a clog inside the power nozzle. Detach wands and drop a small coin into connection. It should fall through. If it doesn't, there's a clog that needs cleared.
A leaky hose could be the problem. Any vacuum hose is often mistreated, though intentionally. But due to the length of the CV hose, it undergoes quite a bit. Being constantly dragged around corners and pulled around, as well as improper storage can all result in holes/leaks in the hose. A few tiny holes throughout the length of the hose will result in an often dramatic loss of suction.
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Poor suction can be caused by obstructions, poor air flow or a compomise in the air flow (hole in the hose). Since you have started with that I would next look at all filters and clean them. First check for suction at the motor, then at accessory hose and then the base. this will lead you to a suction issue. If your baelt has not been replaced in the last 6-12 mo I would change that too. check to make sure your carpet setting is coorect for the carpet being cleaned.

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