📦 Recommended Universal Soft Serve Machine Brush Cleaning Kit (paid link): br Clogged parts can stop the spin—this brush kit helps you clean tight spots that might be causing the jam.br br As an Amazon Associate, I earn from qualifying purchases — it helps support the channel at no extra cost to you.br br Ninja Creami (NC300UK) not spinning — even though it’s fully locked?br This guide walks through what causes the motor to stop or fail to start, even when everything looks ready.