HI, it's Jim from Crucial Vacuum!
If your Shark NV350 vacuum is making loud noises when switched to carpet then there are a few parts of your vacuum you can check to resolve the problem.
First thing let's check your vacuums canister. The idea is to prevent clogs and anything that will obstruct your vacuum from operating properly, and running smoothly without noise. You'll want to empty your canister after every use.
Secondly, let's check out your brush roll. Is there hair wrapped around the roll itself, or any noticeable debris that would prevent the brush roll from turning? If so remove it and manually rotate the brush roll to help unearth any hidden clogs behind the roll.
While you're examining your vacuums brush roll take a look at the belt as well. If the belt isn't wrapped around the brush roll properly this could be causing the noise. The belt should have a good bit of tension on it in order for the brush roll to turn properly. Your vacuums belt should be replaced roughly every 3 months. So be sure it's on properly and has a good bit of tension.
You can purchase replacement parts for your Shark NV350 direct from Crucial Vacuum with free shipping and an exclusive 10% coupon for Fixya.com readers, use code: FIXYA10
http://www.crucialvacuum.com/catalogsearch/result/?q=NV350&order=relevance&dir=desc&limit=all
I hope this was helpful. If you would like further assistance, please feel free to give us a call at 877.750.9239. We have helpful and friendly customer care representatives on the line ready to assist you.
Jim
Crucial Vacuum Customer Care
http://www.crucialvacuum.com
AS far as I am aware and I have been in the trade for many years, there are limited spares for the Shark range and no schematics or diagrams due to their policy.
If it fails under warranty, they replace it, they don't attempt to repair them because it is not cost effective.
They are all called 'Navigator' :>D
https://www.google.com/search?q=Shark+Navigator
When switch to carpet, the difference is that the brush roller turns. When it is on hard floors setting it doesn't. Remove the base plate, remove the brush and the belt. There is likely something wrapped around the drive spindle or clutch.
It is possible that the issue is with the motor or an electrical component. If you have access to a multimeter, you could try testing the motor and other electrical components to see if they are working properly. If not, then it may be necessary to replace the motor or another component. You may also want to make sure that all of the wiring connections are secure and not damaged in any way.
You can find diagrams of the wires in a Shark Professional Vacuum Handle online. You can search for the specific make and model of your vacuum to find the diagram. Alternatively, you can contact the manufacturer of your vacuum to request a diagram.
Question edited for clarity and correct name of the vacuum.
Where is the shark vacuum brush bar reset button? You can find the shark brush-bar reset button on the underside of the vacuum.
Jul 12, 2020