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Posted 5/14/2010 8:06:41 PM
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Last Login: 5/14/2010 8:03:23 PM
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i was useing my dremel to cut 1/16th inch aluminum and after just 5 minutes it was getting hot and then just stoped working. this was the third time i used the tool.

anyone else having this problem or know how to fix it?
Post #6797
Posted 5/23/2010 8:45:48 PM
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Last Login: 5/29/2010 5:40:47 AM
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I have the exact same problem. I was using it, turned it off for a minute, and it would not turn back on. I checked it out completely. Continuity where there should be, none where there shouldn't. Brushes are good, even tried replacing them with no luck. Its only 6 months old...

Post #6824
Posted 10/12/2010 6:08:00 AM
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Last Login: 10/12/2010 5:58:34 AM
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I pulled the front seat apart in our 47 Packard Super Custom Clipper so I could cut a small opening in the lower seat frame for seat belts. My 4000 Dremel failed within about 30 seconds of cutting 22ga sheet metal with a thin blade mounted on an EZ lock at somewhat low RPM to avoid throwing sparks at the headliner. At the time I thought a reverse option would be useful, doesn't matter now that I am dead in the water, may have to make a 22mi round trip to Lowes . to buy another brand . . . now the car is blocking the shop with the front seat apart, in all probability a bean counter caused an inferior component to be included in the construction of the 4000.
Post #7202
Posted 12/26/2010 7:48:13 AM
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Last Login: 3/20/2013 3:24:42 PM
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I had a 400XPR for a couple of years and it burned up about 2 months ago.  I sent it to Dremel and they replaced it with a 4000.  I was using the 4000 and all of a sudden it started clicking very loudly and I could see sparks through the air vent.  I think the clicking was actually arcing noise from the brushes.  I had about 15 hours or so use on the 4000.  I really like the Dremel products but am beginning to wonder about durability.  I called customer service and they told me to box it up and they will schedule UPS to pick it up for repair.  I will say I have gotten a lot of help from the customer service dept.

Jack

Post #7467
Posted 12/31/2010 4:28:38 AM
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Last Login: 1/21/2011 2:54:22 AM
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I exchanged a new 4000 to replace another 4000 that quit working. Prior to that I had a much older model for almost five years - it ran flawlessly

I noticed the original 4000 became rather hot when I turned it on for 10 minutes to break it in, so I allowed it to cool off for a couple of hours. When I came back home and started using it with a thin cutting wheel I could hear a popping noise and see sparks flying everywhere through the vent holes. Needless to say I returned it immediately to the store. They only allowed me to return it for the same item, so im stuck with another 4000. This one also becomes uncomfortably hot after just a couple of minutes use, and on more than one occasion I am unable to control the RPM's. I can set it to 20, but it will turn at 5, and later jump up to 35 and ruin my project or send a cutting disc flying into pieces.

I actually decided to look it up online to see if there is some sort of fix, I really cant have my hands being burned, my projects ruined, and all the expensive attachments destroyed. The fix I found, is to buy an older dremel if I can find one and throw this one in the trash. My projects cant wait three or more weeks for me to receive another faulty 4000
Post #7492
Posted 1/17/2011 10:24:13 AM
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Last Login: 1/21/2011 2:54:22 AM
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jack0458 - your dead on with your thoughts on the problem. I decided to look a little farther into my problems and this is clearly the brushes arcing constantly. When i pulled out the brushes one of them had worn to nearly nothing, and the other appeared new.

Worse yet, both of the springs were useless. They were nearly completely compressed and lacked any of the recoil one would expect.

Part of the brush (where the spring rests) on the more worn part was missing, and I found it wedged inside the motor

I looked for replacement brushes, and apparently the bush hasn't changed in ages... most somewhat modern dremels use the exact same part. so im left wondering where the problem began

To think people complained about their floor mats getting stuck... I have a product that arcs several times a second in my bare hands (for the first two minutes before it becomes unbearably hot). Is there some sort of recall going on Dremel? I see a lot of people having the same problems, and very few talking about how awesome this model is
Post #7543
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