Question about Metabo ® 12 Amp 9000 RPM Model WE14150 Quick 6" Electronic Angle Grinder With Locking Paddle Switch ® 12 Amp 9000 RPM Model WE14150 Quick 6" Electronic Angle Grinder With Locking Paddle Switch

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I had been using this grinder for about 2 weeks with no problems. A few days ago while using it it just popped and hasn't worked since.

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The part number for the replacement brush from Ohio Carbon Industries is #20-870 and they are $3.53 each or less depending on the quantity purchased. We do have a minimum order. Ohio Carbon Industries is a manufacturer and distributor of carbon brushes for nearly all electric motors. Call our sales dept. at 419-496-4456 or email them at

Posted on Mar 20, 2012

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These are great grinders. I have two of them. One version (more expensive one) has soft start and good overload system. Other version is basic grinder. if it (popped) most likely a short in the motor. Is it possible you got an unusual amount of grinding dust into the grinder? This grinder has a safety feature on the brushes, that keeps from burning up the armature when the brushes wear out. I doubt you've worn out a set of brushes in 2 weeks, unless you've been using it non stop. At least one of the brushes has a small plastic insulating pin inside the carbon. When the brush wears down enough to expose the plastic pin, the spring loaded pops out, lifting the brush from the armature , which opens the circuit. You could remove the brush holders and inspect the brushes. If it is 2 weeks old it is under warranty, and you should return it where you bought it.

Posted on Jul 14, 2010


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