Is my controller fried?

I must have done something stupid :frowning:

Anyway, the blue light would turn on but slowly fade away.

It may have been an errant bit of static electricity, or the springs not quite being strong enough to hold up the router when you turned off the machine — saw your ticket on Help Scout and replied as best I could. Hope it helps.

Use contact cleaner spray .

Exact same thing happened to mine. Although it started happening after one of the stepper drivers overheat and melted. Had to get a new controller.

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