Fixing a $400 used Plasma Cutter! Diagnosing & Repairing a Loud Noise (Diagnose, Tips, & Fix)

After snagging a used Thermal Dynamics Cutmaster 52 plasma cutter for just $400, I discovered a concerning issue: a loud chatter noise when turned on. While the unit still cuts fine, I couldn't ignore the sound. In this video, we tackle diagnosing and repairing the problem together.

I share the steps I took, from identifying the issue online to sourcing a replacement contact coil on eBay. Watch as I share a handy trick for securing discounts from sellers. We'll then walk through the repair process, ensuring I reassemble the wiring correctly.

The moment of truth comes when we flip the switch—will the noise be gone? With just $72 invested in a new contact coil, this gamble paid off big, and now I have a powerful plasma cutter ready to pair with my Langmuir CrossFire CNC table! Subscribe, like, and share your repair stories or tips in the comments.

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