Shark Navigator NV70 Brush Not Turning: Troubleshooting Guide

Is your Shark Navigator NV70 vacuum cleaner’s brush roll refusing to spin? This is a common issue that can significantly impact your vacuum’s cleaning performance. A non-spinning brush roll can leave dirt and debris behind, making your cleaning efforts less effective. This comprehensive guide will walk you through the most common causes and provide step-by-step solutions to get your Shark Navigator NV70 brush roll spinning again.

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This guide matters because a properly functioning brush roll is crucial for deep cleaning carpets and rugs. By troubleshooting and resolving this issue yourself, you can save time and money on repairs or replacements, while also ensuring your home stays clean and healthy. We’ll cover everything from simple fixes to more complex solutions, empowering you to tackle the problem with confidence.

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Here’s what we’ll cover: checking for blockages, cleaning the brush roll, inspecting the belt, and other potential issues. Let’s get started and restore your Shark Navigator NV70 to its full cleaning potential.

Check for Blockages in the Brush Roll and Hose

Shark Navigator NV70 brush roll blockage removal

One of the most frequent reasons for a brush roll to stop turning is a blockage. Hair, string, and other debris can easily get tangled around the brush roll, preventing it from spinning freely. Similarly, obstructions in the hose can restrict airflow, which also affects brush roll function.

  1. Inspect the Brush Roll: Turn off and unplug your Shark Navigator NV70. Carefully examine the brush roll for tangled hair, string, or other debris. Use scissors or a seam ripper to cut away any obstructions. Remove the brush roll if possible for easier cleaning.
  2. Check the Hose: Detach the hose from the vacuum body and the floor nozzle. Look for any visible blockages. You can use a broom handle or similar tool to gently dislodge any obstructions.
  3. Inspect the Nozzle: Check the floor nozzle opening for any large debris that could be blocking the brush roll’s movement.

Clean the Brush Roll Thoroughly

Even if there are no obvious blockages, a dirty brush roll can still struggle to turn. Over time, dirt and grime can accumulate, creating friction and slowing down the brush roll.

  1. Remove the Brush Roll: If your Shark Navigator NV70 allows it, remove the brush roll from the vacuum head. Consult your user manual for specific instructions on how to do this.
  2. Wash the Brush Roll: Wash the brush roll with mild soap and warm water. Use a brush to scrub away any stubborn dirt or grime.
  3. Dry Completely: Allow the brush roll to dry completely before reassembling it. This prevents mold and mildew growth.

Inspect the Brush Roll Belt

Shark Navigator NV70 brush roll belt inspection

The brush roll belt connects the motor to the brush roll, transferring power and causing it to spin. If the belt is broken, stretched, or damaged, the brush roll won’t turn.

  1. Locate the Belt: Access the brush roll belt compartment. This usually requires removing a cover or plate on the vacuum head.
  2. Inspect the Belt: Check the belt for any signs of damage, such as cracks, tears, or excessive stretching.
  3. Replace if Necessary: If the belt is damaged, replace it with a new one. Ensure you purchase the correct replacement belt for your Shark Navigator NV70 model. Follow the instructions in your user manual for belt replacement.

Check the Motor and Switch

Although less common, a faulty motor or switch can also cause the brush roll to stop working. These components control the power supply to the brush roll.

  1. Listen to the Motor: Turn on the vacuum and listen closely to the motor. If the motor sounds weak or makes unusual noises, it could be failing.
  2. Test the Switch: Some Shark Navigator models have a separate switch for the brush roll. Ensure this switch is turned on. If the switch is faulty, it may need to be replaced.
  3. Consult a Professional: If you suspect a motor or switch issue, it’s best to consult a qualified appliance repair technician. These repairs often require specialized knowledge and tools.

Reset the Vacuum

Some Shark Navigator models have a reset button or feature that can help resolve minor electrical glitches that might be preventing the brush roll from turning.

  1. Unplug the Vacuum: Disconnect the vacuum cleaner from the power outlet.
  2. Locate the Reset Button: Check your user manual to see if your model has a reset button. It’s often located on the main body of the vacuum.
  3. Press and Hold: Press and hold the reset button for 10-15 seconds.
  4. Plug Back In: Plug the vacuum back into the power outlet and test the brush roll.

Check the Brush Roll Housing and Bearings

Shark Navigator NV70 brush roll housing and bearings inspection

The housing and bearings that support the brush roll can sometimes become damaged or worn, causing the brush roll to bind and stop turning.

  1. Inspect the Housing: Examine the brush roll housing for any cracks or damage that could be impeding the brush roll’s movement.
  2. Check the Bearings: If possible, inspect the bearings that support the brush roll. These bearings should allow the brush roll to spin freely. If they are corroded or damaged, they may need to be lubricated or replaced.
  3. Clean and Lubricate: Clean the housing and bearings with a dry cloth. Apply a small amount of lubricant, such as silicone spray, to the bearings to improve their function.

FAQ Section

How often should I clean my Shark Navigator NV70 brush roll?

It’s recommended to clean your brush roll every 1-3 months, depending on how frequently you use your vacuum and the amount of hair and debris in your home. Regular cleaning prevents blockages and ensures optimal performance.

Can I use any type of soap to clean the brush roll?

No, avoid using harsh chemicals or abrasive cleaners. Mild dish soap is the best option for cleaning your brush roll. Ensure you rinse it thoroughly and allow it to dry completely before reassembling.

How do I know if my brush roll belt needs replacing?

If you notice the brush roll is turning slowly or not at all, and you’ve already checked for blockages, the belt is likely the culprit. Inspect the belt for cracks, tears, or excessive stretching. If any of these signs are present, replace the belt.

What type of lubricant should I use on the brush roll bearings?

A silicone-based lubricant is ideal for brush roll bearings. Avoid using oil-based lubricants, as they can attract dirt and grime. Apply a small amount to the bearings to ensure smooth rotation.

Is it possible to replace the motor myself?

Replacing the motor is a more complex repair that typically requires specialized tools and knowledge. It’s generally recommended to consult a qualified appliance repair technician for motor replacement.

How can I prevent hair from tangling around the brush roll?

Vacuuming regularly can help prevent excessive hair buildup. You can also purchase a vacuum cleaner with a self-cleaning brush roll or use a hair-cutting tool specifically designed for vacuum cleaners to remove tangled hair.

Tips, Warnings, and Best Practices

  • Safety First: Always unplug your vacuum cleaner before performing any maintenance or repairs.
  • Read the Manual: Refer to your Shark Navigator NV70 user manual for specific instructions and safety precautions.
  • Regular Maintenance: Consistent cleaning and maintenance can prevent many common issues and extend the life of your vacuum cleaner.
  • Avoid Overfilling: Empty the dust cup regularly to maintain optimal suction and prevent strain on the motor.
  • Check for Recalls: Periodically check the manufacturer’s website for any recalls or safety notices related to your model.

Conclusion

A non-spinning brush roll on your Shark Navigator NV70 can be a frustrating problem, but with a systematic approach, you can often diagnose and fix the issue yourself. By following this troubleshooting guide, you can identify common causes such as blockages, belt problems, or motor issues and take the appropriate steps to resolve them.

Don’t let a malfunctioning brush roll compromise your cleaning efforts. Take action today to restore your Shark Navigator NV70 to its peak performance. If you’ve tried these steps and your brush roll still isn’t turning, it may be time to consult a professional repair service. Get your vacuum running smoothly again and enjoy a cleaner, healthier home!

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