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Kenmore 78423 Troubleshooting

Released in 2012, this bagless canister vacuum has a 3-speed motor and cyclonic design, identified by model number 78423.

Vacuum won't power on

You push the power button and the vacuum does not respond.

Vacuum not connected to power source

Follow the power cord to the power source, ensure proper installation of prongs into the outlet. If not plugged in, plug into the power source. Be sure power button on vacuum cleaner is in the off position before plugging back in.

Tripped Circuit Breaker/ Blown Fuse

Check service panel for tripped breakers/blown fuses. If breaker is tripped, reset it. If fuse is blown, replace it. If vacuum cleaner is plugged in, be sure power button is in the off position before resetting breaker/changing fuse.

Vacuum cleaner starts but shuts off

You power on vacuum cleaner but it won't stay powered on.

Tripped thermal protector in canister

This vacuum is equipped with a thermal protector. Turn off and unplug vacuum and allow it to cool and the thermal protector to reset. The thermal protector may overheat due to a clog in the dustbin. Check the filters and remove any clogs if necessary. Follow our guide on [http://|removing the dust filter] in the dust bin and clean filter if necessary. Check out our guide on [http://|removing the secondary foam filter] and clean if necessary. Check out our guide on [http://|removing the exhaust filter] and [http://|replace the exhaust filter] if necessary.

Vacuum lacks suction

Vacuum powered on but does a poor job of sucking up dirt/vacuum has no suction.

Full/clogged dustbin

You may have a full dust bin which will result in reduced suction. For instructions on how to [http://|empty the dust bin], check out our easy to follow guide.

Dust bin open

The dust bin may not be closed all the way. Close dust bin until release button is latched. You should hear a "click." For more detailed instructions, check out our guide on how to [http://|empty the dust bin] and look at the last step.

Clogged hose/airflow passages

Your vacuum hose may have an obstruction. Pull out the handle on the hose by turning the removal ring in either direction. Remove any clogs in the handle; shake the hose to remove any clogs. You may have to use a long, rigid stick to remove the obstruction. Insert handle back in place and return ring to its original position. If you are unsure about where the removal ring is or how to remove it, follow our guide on [http://|unclogging the vacuum hose].

Dirty/clogged filters

Your filter(s) may be dirty or clogged. Follow our guide on [http://|removing the dust filter] in the dust bin and clean filter if necessary. If you are missing the included filter brush, use a gentle brush such as an old toothbrush. If you wash the filter, DO NOT use soap, only water. Allow it to dry for 24 hours before reinstalling. When cleaning filter no longer returns vacuum cleaner to full power, [http://|replace the dust filter].

Check out our guide on [http://|removing the secondary foam filter] and clean if necessary. Rinse foam filter with water, DO NOT use soap. Squeeze water out of the filter and allow it to dry for 24 hours before reinstalling. When cleaning filter no longer returns vacuum cleaner to full power, [http://|replace the secondary foam filter].

Check out our guide on [http://|removing the exhaust filter] and replace if necessary. This vaccum cleaner has a HEPA filter that the manufacturer reccomends changing annually. If it is older than one year, [http://|replace the exhaust filter].

Hole in vacuum hose

A hole in the vacuum hose will not allow proper suction. If there is a visible hole in the hose it needs to be replaced. To test for a hole that may not be visible by sight, you can remove the hose from the machine. Pass water through one end and check for leaks along the tubing.

Vacuum makes high pitched noise

Vacuum makes a high-pitched sound when powered on

Partial obstruction in nozzle

Check nozzle on the hose for obstructions. Shake and bend hose to remove debris. If needed, obstruction may need to be manually removed. For more detailed instructions check out our guide on [http://|unclogging the vacuum hose].

Check fan blades

Vacuuming small, hard objects may have damaged the fan. If the fan is bent or dented, it needs to be replaced. For instructions on how to check the integrity of your fan blades, check out our guide on [http://|checking the fan].

Power cord won't rewind

You press the power cord rewind button and it won't rewind.

Dirty power cord

Clean the power cord using a damp cloth. Dry cord with a dry cloth or allow it to air dry before [http://|rewinding the power cord].

Cord jammed

Manually unwind power cord, rewind it back in place. You may need to repeat this process more than once. For detailed instructions, check out our guide on [http://|rewinding the power cord].

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