Shark WS620 Series Troubleshooting

If you are having problems with your Shark WS620 Series Vacuum Cleaner, you are not alone. Many Shark WS620 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 WS620 Series

Reported Shark WS620 Series Issues

What issue are you encountering?


  • My vacuum has no or low suction
    • Plug in and turn on the vacuum.
  • My vacuum will not turn on

  • LED 1 and LED 3 blinking
    • The vacuum cleaner is equipped with a motor-protective thermostat. If for some reason your vacuum overheats, the thermostat will automatically turn the unit off. Typically, overheating is caused by a clogged airway. It may take approximately 60 minutes for the unit to cool.
  • LED 3 blinking
    • Turn the vacuum off and then turn it back on
  • LED 3 is blinking yellow
    • Turn off the vacuum, wait 5 seconds then turn it back on
  • LED 3 is a solid yellow
    • Turn off the vacuum and remove the floor nozzle from the wand.
    • Flip the nozzle upside down. Use a coin to turn the locks on the bottom cover counterclockwise. Remove the bottom cover to access the brush roll.
    • Check for debris or a blockage around the brush roll. Cut away any hair or fibers that may be attached to the brush roll. Using your hand, rotate the brush roll to free up any remaining debris.
    • Check for debris or clogs inside the nozzle inlets/openings. Remove any debris.
    • Once all clogs have been cleared, reattach the bottom cover, pressing down firmly on all sides. Use a coin to turn the locks clockwise until they click.
    • Reconnect the floor nozzle to the wand ensuring you hear an audible click, and turn on the vacuum.
  • LED 1 blinking
    • The battery is almost out of charge. Please charge the unit for at least 3.5 hours
  • No light
    • The unit may be out of charge.
    • Plug the charger in a verified working outlet and place the vacuum on the charger
  • My vacuum will not charge

    • LED 1 and 2 are solid, with LED 3 blinking
      • The unit is charging normally.
    • LED 1 or LED 2 light is blinking. All other LEDs off
      • Check all the connections, remove the battery then reinsert it.
      • Plug the charger into a working outlet and into the vacuum
    • 3 Solid lights (Full Charge)
      • Unplug the charger from the vacuum and turn it on.
    • No light
      • Unplug 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 3 LEDs 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. Remove the handheld from the wand. Inspect connection points on the handheld for debris, damage, or melting
  • My vacuum has a short runtime
    • To get the most run time, ensure that the battery is fully charged before use. You can check this by plugging the unit into the charger.  The unit is fully charged when all lights are solid. Note: it can take up to 3.5 hours to fully charge
    • Compare results to the runtimes listed.
      • How long does the unit run?
        • Mode
          • Hand Vac – extended – 17 Minutes
          • Hand Vac – boost – 8 Minutes
          • Bare Floor – extended – 12 Minutes
          • Bare Floor – boost – 8 Minutes
  • 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
  • My vacuum is making an unusual noise
    • Remove the handheld from the wand and turn it on
  • The brush roll continues to spin when the vacuum is turned off
    • If the brush roll continues to spin after the vacuum is turned off
  • There is an attachment stuck to the vacuum
    • Remove attachments by pulling the release buttons on both sides of the handle towards you.
  • 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 WS620 Series Vacuum Cleaner Problems

Below are common issues and solutions for the Shark WS620 Series:

The Shark WS620 Series is not picking up debris. No suction or light suction. The third indicator light on the hand vacuum is a 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 WS620 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 WS620 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 hand vacuum is tilted back far enough for the brush roll to engage while in use.
  • If the floor nozzle has headlights and they are not illuminated, there is a connection issue between the hand vacuum, wand, and nozzle. Try detaching the parts, then reconnecting them

The Shark WS620 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 on the hand vacuum. If recharging is needed, make sure the vacuum power is off before plugging in the charger.
    2. Empty the dust cup and clean the filters (See the Cleaning the Dust Cup and Filter section).
    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 On/Off switch to restart the vacuum

The Shark WS620 Series Battery Indicator Lights on the hand vacuum are flashing


  •  The bottom LED is solid yellow (Fig. A): Nozzle clog.
  • The top 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 top two 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.
  • Bottom LED is flashing (Fig. F): Communication.
  • Bottom LED blinking yellow (Fig. G): There may be an electrical problem with the nozzle.

Shark WS620 Series Replacement Parts

How to Diagnose and Repair a Shark WS620 Series

This guide will help you identify and resolve issues with your Shark WS620 Series Vacuum Cleaner.

Shark WS620 Series Issues? Need Help?

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