Chosen Solution
Where can i buy to replace the motherboards for Nutri Ninja Ninja Blender Duo BL641
I did a cursory internet search and not much turned up. A full replacement main board may not be easy to come by. That leaves you with a handful of options: Take a roll of the dice and see if you can find a used one on eBay (I wouldn’t recommend this unless you have good relations with the seller)Contact Shark/Ninja and ask if they have the parts and get a quote/see if they will sell or give you oneSee if your ninja is still under warranty and file a claimSince the main board is relatively simple, determine which component has gone bad and replace it (i.e. resistors, capacitors, etc.) I don’t recommend performing option number 4 unless you are very comfortable with electronics. Best of luck! And remember to be safe when working with electricity and electric components. Here is a guide for using a multi meter to test components on the PCB Here is a guide for testing different PCB components.
