On the covered Shark RV2900 Series POWERDETECT ThermaCharged robot vacuum, Error 4, 46 means brushroll motor error. Shark says this indicates a possible issue with the brushroll, and that there is a blockage in the brushroll compartment. First, power the robot off, then take out the dust cup and check the opening on the robot and the dust cup trap door for obstructions or debris.
Differential
Likely causes of “Shark RV2900 Series POWERDETECT ThermaCharged robot vacuum showing Error 4, 46”, and how to tell them apart
- 1
The brushroll motor reports a problem
What separates it The robot stops and the app or lights show error 4 or 46
How to confirm Power the robot off, then take out the dust cup and check the openings
- 2
A blockage in the brushroll compartment
What separates it Hair or thread is wrapped around the brushroll
How to confirm Remove the brushroll and clear it
- 3
Debris around the brushroll end cap
What separates it The brushroll does not spin freely
How to confirm Clear the debris around and under the end cap
- 4
A blocked dust cup or filter
What separates it The airflow is restricted
How to confirm Empty the cup and clean the filter
- 5
A worn or failed brushroll motor
What separates it The brushroll is clear and the error stays
How to confirm Contact Shark support with the model and the code
Before you touch a setting
Record this first — changing settings destroys the evidence
- Which error number shows, 4 or 46
- What the brushroll looks like
- Whether the dust cup is full
- The robot's model number
Try in this order
0 of 8 completedWhat to do first
ReversiblePower the robot off, then take out the dust cup and check the opening on the robot and the dust cup trap door for obstructions or debris.
Correct only the documented fault domain
ReversibleShark's steps: empty the dust cup and wipe the mesh filter on the bottom of the dust cup door with a dry cloth, remove the orange filter and tap it lightly to clear debris, and slide the dust cup back in until it clicks. Turn the robot over and remove the plastic brushroll cover by pressing its two tabs, lift out the brushroll, and clear all hair and debris from the brushroll compartment, including the ends where the brushroll attaches. Remove anything wrapped around the brushroll, and clear debris from around and under its end cap so it rotates freely.
Refit the brushroll with the square hole over the square peg and click the cover back on. Once done, power the robot off by removing it from the base and holding the POWER button for 3 seconds, and when finished, slide it onto the base with the Shark logo facing upside down to power it back on and press VACUUM to start a cleaning mission. Shark's tip: if the error keeps returning after all the steps, contact Shark support with your model and the error code.
Power the robot off and take out the dust cup
ReversibleCheck the opening on the robot and the dust cup trap door for obstructions or debris.
Empty the dust cup and clean the filters
ReversibleWipe the mesh filter on the bottom of the dust cup door with a dry cloth, remove the orange filter and tap it lightly, then slide the dust cup in until it clicks.
Remove the brushroll cover
ReversibleTurn the robot over and press the two tabs on the plastic brushroll cover to remove it.
Clear the brushroll
ReversibleLift out the brushroll and clear all hair and debris from the compartment, including the ends where it attaches.
Free the end cap
ReversibleRemove anything wrapped around the brushroll, and clear debris from around and under its end cap so that it rotates freely.
Refit and restart
ReversibleRefit the brushroll with the square hole over the square peg and click the cover on. Power the robot off by removing it from the base and holding POWER for 3 seconds, then slide it onto the base with the Shark logo facing upside down and press VACUUM.
Model-specific
What is true of this model and not of its siblings
- The error on this page
- Error 4 or 46, a brushroll motor error.
- Parts involved
- The brushroll, its compartment, the end cap and the dust cup.
- Shark's guidance
- Clear the brushroll compartment and contact support if the error returns.
Stop boundary
When this stops being a self-service repair
- !Shark's tip is that if the error keeps returning after all the steps, contact Shark support with the model and the error code
- !Do not run the robot with a tangled brushroll
- !Power the robot off before cleaning
Evidence ledger
Sources behind this answer
Exact questions
Common questions
What does Error 4, 46 mean on a Shark RV2900 Series POWERDETECT ThermaCharged robot vacuum?+
Brushroll motor error. Shark says this indicates a possible issue with the brushroll, and that there is a blockage in the brushroll compartment.
How do I clear it?+
Remove the brushroll and clear all hair and debris, as Shark's steps describe.
Is the motor broken?+
Usually not; hair is the usual cause.
How often should I clean the brushroll?+
Weekly if you have pets or long hair.
What if the error returns?+
Contact Shark support with your model and the error code.