Small Appliance Repair Questions? Ask a Technician ASAP
Please just have a quick look through the user manual... ATTACHED
There is nothing "tricky" about the blade here, so it may be jammed with food, or otherwise damaged on the shaft
Let me know how you get on, and please get back to me if you have any other questions or concerns and I will try help you more.
It may take more than one exchange to get a fix, so please work with me, you are my eyes and ears here