Why Does My Shark cordless vacuum keeps shutting off

Cleaning the house after a busy working week has never been easy, especially if you have kids or pets running around. Fortunately, technological advancements have seen that there are cordless vacuum cleaners to help make your cleaning process more bearable. You are at an even better place if you own a shark cordless vacuum cleaner as it features a highly potent, versatile, lightweight, and noiseless design, making it surpass most of its counterparts.

However efficient, your shark cordless vacuum may act up at some point, especially following heavy-duty cleaning. Having to constantly pause your house cleanup because your shark cordless vacuum keeps shutting off could be a nuisance.

This article entails a step-by-step guide to enable you to address the issue efficiently.

If your shark cordless vacuum keeps shutting off, resetting the motor is the ultimate solution. First, ensure you turn off the power button on the device. You can then check for blockages in the hose, bin, and filter. Once you eliminate all the clogs, allow the vacuum cleaner to cool down for up to an hour for best results, after which you may turn it back on and clean without any disruptions.

Also Read:

Why does my Shark cordless vacuum keep shutting off?

If your Shark cordless vacuum keeps shutting off unexpectedly, the problem may arise from blockage and dirt, battery problems, overheating, or technical malfunctions.

Let’s dive into the exploration of these elements.

  1. Battery Problems

A low battery can be a reason for your shark cordless vacuum shutting off. Always ensure your vacuum has sufficient charge, as some units may shut off when the battery is low to conserve power. You must realize that these units only depend on rechargeable batteries as the main power source.

Over time, the battery life might get shorter, which is normal when you have used your unit for a long time. Also, the runtime may be lowered if you do not efficiently do routine maintenance.

Besides, shark cordless vacuum will not start when the battery charge is below a threshold. This safeguards the battery and extends the lifespan of your tool. A flashing indicator will often help you determine when the battery is low.

Thus, when you realize that your Shark cordless vacuum keeps shutting off and the battery is the primary culprit, you may consider various troubleshooting tips below.

Low battery levels or a faulty charger can be the culprits behind your vacuum’s sudden shutdown. Explore how these issues impact the vacuum’s functionality. First, you can test the battery to determine whether it is the main problem.

To test the battery:

  1. Turn Off the Vacuum: Ensure your Shark cordless vacuum is turned off before performing any tests.
  2. Remove the Battery: Detach the battery from the vacuum. Most Shark cordless vacuums have an easily removable battery.
  3. Inspect for Damage: Check the battery for any visible signs of damage, such as cracks or leaks. If you spot any, it’s a clear indicator of a problem.
  4. Charge the Battery: Place the battery on the charger and let it charge for the recommended time. Refer to your user manual for charging duration.
  5. Observe the Charging Indicator: Pay attention to the charging indicator light on the battery or charger. A steady light indicates normal charging.
  6. Check for Full Charge: Confirm that the battery reaches a full charge. Most Shark vacuums have an indicator light that turns green when fully charged.
  7. Reinstall the Battery: Reattach the battery to the vacuum and power it on. If the vacuum operates as expected, the battery is likely in good condition.

Sometimes, the battery may fail to charge, and the charger could be the primary culprit. Test to see if the charger is the issue. A malfunctioning charger can lead to improper charging and abrupt shutdowns. Check the charger for any issues.

  • Plug in the Charger: Insert the charger into a power outlet. Ensure it is securely plugged in.
  • Inspect the Charger Cable: Examine the charger cable for frays or damage. If the cable is compromised, it may affect the charging process.
  • Connect the Battery: Attach the vacuum’s battery to the charger. Ensure it clicks into place securely.
  • Check the Charging Indicator: Look for the charging indicator on the charger. A steady light indicates proper functioning. If it blinks or remains off, there may be an issue.
  • Verify Charging Voltage: Use a voltage tester to confirm that the charger delivers the correct voltage. Refer to your user manual for the specified voltage.

Solutions for Battery and Charger Issues

  1. Battery Replacement: If your battery fails to charge properly or doesn’t hold a charge, consider replacing it. Purchase a compatible replacement battery from Shark or an authorized retailer to ensure optimal performance.
  2. Charger Replacement: If the charger shows signs of malfunction, such as a flickering indicator light or failure to charge the battery adequately, replacing the charger is a straightforward solution. Obtain a genuine Shark replacement charger for optimal compatibility.
  3. Clean Battery Contacts: Over time, dirt or residue can accumulate on the battery contacts, hindering proper connection. Gently clean the contacts on the battery and the vacuum using a dry, soft cloth to ensure a secure connection.
  4. Check Power Outlet: Sometimes, the issue may be with the power outlet rather than the charger. Ensure the outlet is functioning correctly by testing it with other devices. If necessary, try a different outlet.
  5. Verify Voltage Compatibility: Confirm that the charger provides the correct voltage specified in the user manual. Using an incompatible charger can lead to charging issues and potential damage.
  6. Contact Shark Customer Service: If problems persist after attempting the above solutions, contact Shark Customer Service for expert assistance. They can provide further guidance on troubleshooting or facilitate the replacement of faulty components.

2. Blockage or Dirt

If you have checked your battery and realized it is not the problem, dust, dirt, or debris could be the other main culprit for the shark cordless vacuum shutting off. If the unit is full of dirt, it will shut off.

Most individuals fail to empty the dust cup or dirt bin when they clean, which can translate into bigger problems over time. Cleaning the shark cordless vacuums is primary; you must empty the dust cup anytime you clean to prevent dust buildup.

You must also check your tool’s filters. The dirty filters can shorten the runtime of a Shark cordless vacuum. The tool’s suction can be wicked by clogging debris and dirt. Therefore, if you do not handle or deal with the dirt and debris issue in time, it could be a reason for your model shutting off.

You can troubleshoot the dirt and debris issue following the below considerations.

Neglecting the maintenance of your Shark cordless vacuum’s filters and dust cup can significantly impact its performance, ultimately leading to unexpected shutdowns. The dirt and debris can cause the following;

  • Reduced Suction Power: Clogged filters hinder the airflow in the vacuum, diminishing its suction power. As a result, the vacuum struggles to pick up dirt and debris efficiently.
  • Overheating: When filters are clogged or the dust cup is full, the vacuum’s motor works harder to maintain suction. This increased workload generates excess heat, leading to overheating.
  • Automatic Shutdown: Shark cordless vacuums are equipped with safety mechanisms that trigger automatic shutdowns when overheating is detected to prevent damage from excessive heat. This protects the motor and other components from potential damage.
  • Inefficient Cleaning: A vacuum with clogged filters and a full dust cup becomes less effective in removing dirt and allergens from surfaces. This compromises the cleanliness of your home and extends the time required for each cleaning session.

Regular cleaning and maintenance are primary to ensuring your Shark cordless vacuum performs at its best.

Follow these simple steps to clean filters and empty the dust cup, preventing future issues and maintaining optimal efficiency.

Cleaning Filters:

  • Power off the Vacuum: Ensure the vacuum is turned off and disconnected from the power source for safety.
  • Locate the Filters: Depending on your Shark model, find the filters. Commonly, there are pre-motor and post-motor filters.
  • Remove Filters: Carefully remove the filters from their designated compartments. Refer to your user manual for specific instructions on filter removal.
  • Tap off Loose Debris: Gently tap the filters against a waste bin to dislodge loose dirt and debris. This helps prevent excess buildup.
  • Rinse Filters (If Applicable): If your filters are washable, rinse them under lukewarm water. Allow them to air-dry completely before reinserting them.
  • Check for Damage: Inspect the filters for any signs of damage, such as tears or deformities. If damaged, consider replacing them with genuine Shark replacement filters.

Emptying the Dust Cup:

  • Power Off and Disconnect: Turn off the vacuum and disconnect it from the power source.
  • Locate the Dust Cup: Find the dust cup, typically located at the front or rear of the vacuum.
  • Remove Dust Cup: Take out the dust cup by pressing the release button or following the instructions in your user manual.
  • Dispose of Debris: Empty the contents of the dust cup into a waste bin. Use a brush or cloth to remove any remaining debris.
  • Rinse the Dust Cup (If Washable): If the dust cup is washable, rinse it under running water. Ensure it is thoroughly dry before reattaching it to the vacuum.
  • Inspect for Damage: Check the dust cup for cracks or damage. If damaged, replace it with a genuine Shark replacement dust cup.

Replacement Considerations for Damaged Filters:

If you notice signs of damage on your Shark cordless vacuum filters, you must take prompt action to maintain optimal performance. Follow these steps to replace damaged filters:

  • Identify the Damaged Filters: Examine each filter carefully for tears, deformities, or visible damage. Note which filters require replacement.
  • Check User Manual for Compatibility: Refer to your vacuum’s user manual to identify the specific model of the filters that need replacement. Ensure compatibility to guarantee proper functioning.
  • Purchase Genuine Shark Replacement Filters: To ensure quality and compatibility, purchase replacement filters directly from Shark or authorized retailers. Genuine Shark filters are designed to meet the vacuum’s specifications.
  • Power Off and Disconnect the Vacuum: Before replacing filters, power off the vacuum and disconnect it from the power source for safety.
  • Remove the Damaged Filters: Follow the user manual instructions to remove the damaged filters safely. This typically involves releasing latches or buttons for easy removal.
  • Install Genuine Replacement Filters: Unbox and install the new filters according to the user manual guidelines. Ensure a secure fit to maintain proper suction and performance.
  • Dispose of Damaged Filters Properly: If the damaged filters are not washable or reusable, dispose of them according to local waste disposal regulations. Some filters may be recyclable.
  • Perform a Test Run: After replacing the filters, power on the vacuum and perform a brief test to ensure the new filters function correctly.
  • Regularly Monitor and Replace Filters: Incorporate regular checks of your filters into your vacuum maintenance routine. If you notice wear or damage, replace them promptly to prevent any decline in performance.

3. Check the Brush Roll and Nozzle

A Shark cordless vacuum relies on a well-maintained brush roll and unobstructed nozzle to deliver optimal performance. Recognizing the signs of a tangled brush roll or a blocked nozzle is crucial, as these issues can significantly impact the vacuum’s effectiveness.

As shown below, various issues can result from an unobstructed nozzle and a tangled brush roll.

  • Reduced Suction Power: A tangled brush roll or a blocked nozzle impedes the smooth rotation of the brush, hindering its ability to lift dirt and debris effectively. This reduces suction power, making the vacuum less efficient in picking up particles from surfaces.
  • Inefficient Dirt Removal: The primary function of the brush roll is to agitate and lift dirt from various surfaces. When tangled with hair, threads, or other debris, the brush roll becomes less effective, leading to inefficient dirt removal.
  • Potential Damage to the Vacuum: Continuously operating the vacuum with a tangled brush roll can strain the motor and other internal components. Over time, this strain may lead to premature wear and tear, reducing the overall lifespan of the vacuum.
  • Automatic Shutdown for Safety: Many Shark cordless vacuums have automatic shutdown mechanisms to prevent damage and ensure user safety. When the brush roll is severely tangled or the nozzle is blocked, the vacuum may shut down automatically to prevent overheating or motor damage.
  • Uneven Cleaning Results: Tangled brushes or blocked nozzles result in uneven cleaning, leaving some areas untouched or poorly cleaned. This compromises the vacuum’s ability to deliver a thorough and consistent cleaning experience.
  • Extended Cleaning Time: With reduced suction power, the vacuum requires more passes over the same area to achieve the desired level of cleanliness. This extends the time needed for each cleaning session and diminishes the vacuum’s overall efficiency.

Removing Debris from the Brush Roll and Nozzle:

  • Power Off and Disconnect: Before attempting any maintenance, disconnect your Shark cordless vacuum from the power source.
  • Access the Brush Roll and Nozzle: Locate the brush roll and nozzle on your vacuum. Refer to your user manual for specific instructions on accessing these components.
  • Clear the Brush Roll: Use scissors or a utility knife to carefully cut away any hair or fibers wrapped around the brush roll. Pull the debris away from the brush, ensuring it’s completely free from any entanglements.
  • Clear the Nozzle: Check the nozzle for visible obstructions, such as large debris or blockages. Use small tools like tweezers or a straightened paper clip to dislodge and remove debris from the nozzle carefully.
  • Check for Hidden Debris: Inspect the surrounding areas for hidden debris impeding the brush roll or nozzle. Clear any additional debris using a soft brush or cloth.
  • Reassemble and Test: After clearing the debris, carefully reassemble the brush roll and nozzle according to your user manual. Power on the vacuum and perform a quick test to ensure the components work smoothly.

When to Replace

  • Excessive Wear and Tear: If you notice visible wear on the brush roll, such as fraying or deformation, it’s time for a replacement.
  • Damaged Bristles: Check the brush roll’s bristles regularly. Consider replacing the brush roll for effective cleaning if bent, broken, or excessively worn.
  • Persistent Blockages: If you consistently face blockage issues despite regular cleaning, it may indicate irreparable damage to the nozzle. In such cases, replacement is advisable.
  • Inefficiency despite Cleaning: If you’ve cleared debris, and your vacuum still exhibits reduced suction or inefficient cleaning, it might indicate that the brush roll or nozzle has reached the end of its lifespan.
  • Unusual Noises: Unusual sounds during operation, such as grinding or clunking, may suggest internal damage to the brush roll or nozzle, signalling the need for replacement.

4. Overheating

Overheating is another primary culprit to a Shark cordless vacuum shutting it off. When the device overheats, a temperature protection sensor is triggered, and the unit’s power will shut off until the temperature is cool enough to resume cleaning.

Often, they would overheat when you use the cordless vacuum for a long time. However, frequent overheating may imply there is something more serious with your Shark cordless vacuum. As such, you need to address the problem immediately.

An appropriate way to troubleshoot an overheated Shark cordless vacuum is to allow it to cool for a few minutes before you turn it back on. The battery and the device should cool for about 45 minutes until they reach room temperature.

You can follow the below process to resolve the overheating problem.

  • Turn off the vacuum cleaner and unplug it from the power socket.
  • Allow the vacuum to cool down for between 45 minutes and one hour. Ensure the motor is fully cooled down before you turn the vacuum off.
  • If the motor works perfectly after cooling, the problem might have been with the motor overheating. You should not vacuum for so long without allowing it to cool. However, if the vacuum shuts off even after cooling, there must be a problem somewhere, essentially due to blockage.
  • In that case, you need to unplug the vacuum again and clean it by emptying the dust cup to remove the dust and other debris. You must also remove tangles so the brush bar can turn freely. This may entail removing the roller.

Why You Need to Reset Your Shark Cordless Vacuum

Resetting your Shark Cordless Vacuum can be essential for addressing common issues arising during its use. Some of the key benefits of resetting include:

  •  Loss of Suction: Over time, dust, debris, and hair can accumulate in the vacuum’s filters and brushes, leading to a reduction in suction power. Resetting helps clear these obstructions, restoring optimal suction.
  •  Diminished Runtime: If you notice a significant decrease in your vacuum’s runtime, it could be due to various factors, such as a drained battery or sensor malfunctions. Resetting allows you to troubleshoot and resolve these issues, ensuring longer operating times.
  •  Persistent Indicator Lights: Indicator lights on your Shark Cordless Vacuum can signal problems, such as a full dustbin, clogged filters, or battery issues. Resetting the vacuum can often resolve these issues, as can turning off the indicator lights.

Examples of Resetting Scenarios

  • Clogged Filters: If your vacuum is not picking up debris efficiently, it might be due to clogged filters. Resetting can help clear these filters, restoring optimal performance.
  • Battery Draining Quickly: If your vacuum’s battery runs out faster than usual, a reset may help recalibrate the battery and improve its overall performance.
  • Error Codes or Indicator Lights: When your vacuum displays error codes or indicator lights, a reset is often the first step in troubleshooting and resolving the underlying issue.

How to Reset Your Shark Cordless Vacuum

Model-Specific Methods

Different models of Shark Cordless Vacuums may have unique reset procedures. Refer to your vacuum’s user manual for specific instructions. Below are general guidelines for common models:

  1. Shark IONFlex:
  •        Turn off the vacuum.
  •         Remove the battery.
  •         Wait for 10 seconds, then reinsert the battery.
  •         Power on the vacuum.
  1. Shark Navigator Freestyle:
  •  Turn off the vacuum.
  •   Locate the power button and hold it down for 10 seconds.
  •   Release the power button and turn on the vacuum.

Tips and Warnings

  • Regular Maintenance: To prevent issues, perform routine maintenance, such as cleaning filters and emptying the dustbin.
  • Charge Fully: Ensure the battery is fully charged before use to maximize runtime.
  • Avoid Force: When resetting, follow the manufacturer’s guidelines and avoid applying excessive force to components.
  • Persistent Issues: If problems persist after resetting, consult the user manual for advanced troubleshooting or contact Shark customer support.

How to Extend the Battery Life of Your Shark Cordless Vacuum

To extend the battery life of your Shark Cordless Vacuum, consider implementing the following tips and tricks:

  1. Optimize Charging Cycles:
    • Charge the vacuum when the battery level is low, but avoid letting it fully discharge regularly.
    • Unplug the charger once the battery is fully charged to prevent overcharging.
  2. Proper Storage:
    • Store the vacuum in a cool, dry place away from direct sunlight and extreme temperatures.
    • Remove the battery if storing the vacuum for an extended period.
  3. Efficient Vacuum Use:
    • Plan cleaning sessions to cover specific areas efficiently without unnecessarily prolonged use.
    • Turn off the vacuum when unused, especially during breaks between cleaning different areas.
  4. Temperature Awareness:
    • Avoid charging the vacuum immediately after heavy use when the battery and vacuum are still warm.
    • Charge the vacuum in a moderate-temperature environment.
  5. Regular Maintenance:
    • Clean filters and brushes according to the recommended schedule to ensure optimal airflow and suction.
    • Keep the dustbin empty to prevent strain on the motor and battery.

Factors Influencing Battery Life

Understanding the factors that influence the battery life of your Shark Cordless Vacuum is crucial for maximizing its performance:

  1. Usage Patterns: The frequency and duration of vacuum use impact the overall battery lifespan. Consistent, shorter cleaning sessions are generally more favorable for battery health.
  2. Storage Conditions: Proper storage in a cool, dry environment is essential. Avoid exposing the vacuum to extreme temperatures, affecting the battery’s longevity.
  3. Charging Practices: Following the recommended charging practices outlined in the user manual helps maintain the battery’s health. Overcharging or letting the battery drain completely regularly can negatively impact its lifespan.
  4. Maintenance Routines: Regular maintenance, including cleaning filters and removing debris from the brush roll, contributes to efficient battery performance.

How to Maintain Your Shark Cordless Vacuum

Familiarizing yourself with proper maintenance practices for your shark cordless vacuum could go a long way in improving its lifespan. Regular maintenance is imperative to keep your unit’s suction power optimal regardless of your vacuum type, whether corded or cordless. As a result, you must know some of these crucial practices to keep your vacuum in the best condition possible and enhance its durability.

Below are some of the essential maintenance practices for a cordless vacuum.

Regular Cleaning

Regular cleaning removes unwanted clogging in your cordless vacuum that may result in device malfunctioning.

Cleaning, in this case, entails washing or replacing the filters. The filters are essential in your vacuum as they a responsible for removing allergens and dust from the air sucked in by your vacuum.

However, if the dust trapped by the filters is not regularly cleaned, they may become blocked, resulting in poor suction over time. As a result, you need to ensure that the filters are cleaned by removing them, tapping off the loose dirt, and hand washing them using water. You should allow the cleaned filters to fully dry for about 24 hours before re-inserting them.

Moreover, you must also ensure that you clean the brush rolls. First, detach the floorhead from your vacuum and remove debris from the bristles. However, you must understand the nature of your vacuum. Some units have removable sections of the base for access to the brush-roll. Check your instruction booklet for details if that is the case. If there are any strings, debris, hair wrapped around the brush roll, use scissors within the brush roll to cut them.

Pay attention to the brush roll and remove any entangled hair or debris to improve the functionality of the motor. The detachable floorheads in the Shark vacuum help with convenience.

Empty the Dust Cup

Every time you vacuum, ensure you empty the dust cup if the debris reaches the MAX fill line. Use a release button to remove the dust cup while holding it over a bin, and press the latch to empty the contents into the bin.

Ensure you have removed all the debris build-up.

Check for blockages

You can check for floorhead, wand, hose, and airway blockages.

If you have an upright vacuum, first remove the handle and check if there is any suction once turned on – if not, there may be an obstruction in the handle or hose.

If this section is clear or you have a stick vacuum, look through the wand to ensure nothing has become lodged in the pipe. You can also shine a torch into the hose.

Finally, check the arm of the floorhead – where you connect the wand – for blockages.

 Turning off the vacuum when not in use

Consider turning off your shark vacuum amidst clean-ups tasks to help preserve the battery. Consequently, please turn off the vacuum before cleaning it to avoid damaging the wires.

Frequently Asked Questions-FAQs

How often should you replace your shark vacuum filters?

Replacing the filters every three months is advisable for utmost convenience. However, this largely depends on how frequently you use your vacuum. If you use it regularly for heavy-duty cleaning, you may have to replace them at least once a month.

Can you wash shark filters?

Yes, you can. A shark vacuum comes with premotor filters (including the felt and foam filters) and a HEPA filter. The frequency of cleaning the filters varies; the premotor filters require regular cleanup, unlike the HEPA filter. It is recommended that you wash the premotor filters at least once every three months and the latter every once a year.

What should I do if my brush-roll has stopped spinning on my Shark vacuum?

Consider checking the brush for tangled debris or hair and eliminate them using scissors. The brush-roll can trap hair, especially if your household includes a pet. However, if the brush has no debris, the motor may be faulty, and you may have to replace it.

Do shark vacuums have fuses?

Shark vacuums have fuses. The vacuums often fail to turn on because the fuses are blown off or the circuit breakers are stripped. Thus, when your shark vacuum fails to turn on, one of the immediate remedial practices is checking if the fuse is blown and requires replacement. You can also correct the problem by resetting the breaker.


Although the shark cordless vacuum graces us with undoubted convenience, it will likely malfunction occasionally. Due to its exemplary aspects and high quality, shark vacuums cost an arm and a leg, causing you to panic whenever your vacuum malfunctions or shuts off. However, worry not because resetting your shark cordless vacuum using the steps discussed above should help you resolve the problem. Ensure you properly maintain your shark vacuum to prevent a similar occurrence.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top