Motor Sparking or Burning Smell: Brushes and When to Worry
A faint flicker through the vents is normal wear on an aging motor. Here is how carbon brushes work, when sparking means replace them tonight, and when it means unplug…
electrical safety
Burning Smell From the Machine: Stop and Diagnose
A burning smell is the one signal that means stop sewing immediately. Here is how to tell hot dust from a dying belt from a real electrical fault, and what…