Shark WS640AE Series Troubleshooting

If you are having problems with your Shark WS640AE Series Vacuum Cleaner, you are not alone. Many Shark WS640AE Series owners experience issues with their vacuum cleaner from time to time, and it can be frustrating to deal with these problems.

I have problems with my Shark WS640AE Series

Reported Shark WS640AE Series Issues

What issue are you encountering?


  • My vacuum has no or low suction
    • Verify if the suction was low from first use or overtime
  • The brush roll is not spinning
    • Ensure the unit is plugged in and is in setting II, Carpet mode. Step on the floor nozzle and tilt the handle to engage the brush roll. Check the headlight indicator lights.
  • My vacuum will not turn on
    • Unplug the charger from the vacuum and turn it on and confirm what LED lights are illuminated.
    • If the LED lights differ from the image below, go to LED Error codes when powered on


  • My vacuum will not charge
    • Note: Using a different brand charger can harm your vacuum and to avoid that, we recommend that you use the Shark charger that came with your vacuum.
    • Plug the charger in an outlet, where an appliance is plugged in and working (a verified working outlet), and place the vacuum on the charger.

  • What error code are you encountering?
    • LED 3 slowly blinking, and LED 2 and LED 1 are solid
      • The unit is charging normally
    • LED 2 or LED 3 is blinking
      • Check all the connections, remove the battery then reinsert it.
      • Plug the charger into a working outlet and into the vacuum.
    • All LEDs are solid (Full Charge)
      • Unplug the charger from the vacuum and turn it on
    • No light.
      • The unit plugs the charger from the vacuum. Remove the battery by squeezing the two tabs on either side of the battery and pulling it from the back of the handheld.
      • Replace the battery by reinserting until you hear a click.
      • Reconnect the charger to the vacuum
    • All LEDS are blinking together.
      • Remove the vacuum from the charger.
        Remove the battery from the handvac then put it back in ensuring it is fully connected.
        Put the unit back on the charger
  • There is a burning smell?
    • The vacuum may have a new motor smell the first couple of uses.
    • Turn off the vacuum. Disassemble the unit. Remove the handheld vacuum from the wand, and the wand from the floor nozzle.
    • Inspect the connection points on a handheld for debris, damage, or burns
  • My unit is making an unusual noise
    • Note: The lower power modes (ex: Bare Floor ECO or Deep Clean) are significantly less noisy. Boost mode specifically is noisy due to the high power. Remove the handheld vacuum from the wand. Turn on the handheld

  • My unit has a short runtime
    • To get the most runtime, ensure that the battery is fully charged before use.
    • The battery runtime is affected by the mode you are using. If you have more than one battery, it is recommended that you use each equally in use and charging.
    • Compare runtimes to the chart below:

  • There is a bad smell coming from the vacuum exhaust
    • First, check the dust cup as it may be full; empty the dust cup if needed.
  • My vacuum is not evacuating into the dock
    • Ensure that the dock is plugged into a verified working outlet.
    • Place the vacuum on the dock in a downward motion. Once properly attached, you will hear the chimes that come before evacuation begins.
  • The brush roll is not self-cleaning
    • Hair that wraps or accumulates around the brush roll will automatically be removed as the brush roll continues to spin.
    • Ensure the nozzle, wand, and handheld are assembled. Turn the unit on and use the nozzle on the carpet for 1-2 minutes to allow the hair to naturally come off of the brush roll.
    • Turn the handheld off, remove the nozzle from the wand, and flip the nozzle over to look at the brush roll
  • How to remove and clean the dust cup and cyclone
    • With the dust cup door open, eject the dust cup from the handheld body by pressing the “Clean Filter Monthly” button. Remove the orange filter and tap to clear away debris.


    • Use force to push the black filter housing away from the clear plastic dust cup until it reaches a 90-degree angle. You will hear an audible click. Remove the cyclone by gently pulling the wire handle on the cyclone frame. Tap it over the trash to remove any excess debris.

Shark WS640AE Series Vacuum Cleaner Problems

Below are common issues and solutions for the Shark WS640AE Series:

The Shark WS640AE Series is not picking up debris. No suction or light suction. The third indicator light on the hand vacuum is solid yellow.


  • Dust cup may be full; empty dust cup.
  • Check floor nozzle for blockages; clear blockages if required.
  • Remove any string, carpet fibers, or hair that may be wrapped around the brush roll.
  • Check the connection between the hand vacuum and wand for blockages; clear blockages if required.
  • Check filters to see if they need cleaning. Follow instructions for rinsing and completely air-drying the filters before reinstalling them.

The Shark WS640AE Series lifts area rugs.


  •  Make sure you are not engaging in Boost mode. Take care when vacuuming area rugs or rugs with delicately sewn edges.
  • Turn off the unit to disengage from the carpet, then restart

The Shark WS640AE Series has a PowerFins nozzle but the brush roll doesn’t spin


  • Immediately turn off the vacuum. Remove any blockages before turning the vacuum back on. Make sure the handheld vacuum is tilted back far enough for the brushrolls to engage. If the brushrolls still do not spin, please contact Customer Service at 1-800-798-7398.
  • If the floor nozzle has headlights and they are not illuminated, there is a connection issue between the handheld vacuum, wand, and nozzle. Try disconnecting and reattaching the pieces. If the headlights still do not illuminate, please contact Customer Service at 1-800-798-7398

The Shark WS640AE Series turns off on its own


  • There are several possible reasons for the vacuum turning off on its own, including blockages, battery issues, and overheating. If the vacuum turns off on its own, perform the following steps:
    1. Turn on the vacuum and check the battery indicator lights located on the handheld vacuum. If recharging is needed, make sure power is turned off before connecting to the charger.
    2. Empty the dust cup and clean the filters (see Emptying the Dust Cup and Cleaning the Filters sections).
    3. Check wand, accessories, and inlet openings and remove any blockages.
    4. Allow unit and battery to cool for at least 45 minutes, until they return to room temperature.
    5. Press the power button to restart the vacuum.

The Shark WS640AE Series Battery Indicator Lights on the hand vacuum are flashing.


  •  The top LED is solid yellow (Fig. A): Nozzle clog. (See the Maintaining Your Vacuum section.)
  • The bottom LED is flashing (Fig. B): The battery needs to be charged. Contact Customer Service at 1-800-798-7398 or if you experience any of the indications listed below:
  • The bottom and middle LEDs are flashing (Fig. C): Overcurrent or short.
  • Top and bottom LEDs are flashing (Fig. D): The motor is overheating.
  • Middle LED is flashing (Fig. E): Overspeed.
  • Top LED is flashing (Fig. F): Communication.
  • Top LED blinking yellow (Fig. G): There may be an electrical problem with the nozzle

Shark WS640AE Series Replacement Parts

How to Diagnose and Repair a Shark WS640AE Series

This guide will help you identify and resolve issues with your Shark WS640AE Series Vacuum Cleaner.

Shark WS640AE Series Issues? Need Help?

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