Question about Quartet gbc 4220S Shredder

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Gbc shredmaster 4220S just stopped working

This shredder just stopped working. Indicator lamps come on (all except "R" light). The unit was never jammed or forced. There is no smell that could be associated with electrical burning or melting, motor overloaded and running hot, etc. The gearbox is in good shape and moving freely. Is there anything else I should look at (fuses, reset buttons, etc. or even electronic components)?

Oh, I did check to make sure the outlet I'm plugging it into has power!



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  • Jimmy Johnson Nov 01, 2008

    Thanks nerygi!

    I sort of came to the same conclusion, as the red "Door open" light shines all the time. When I shut the door the light remains on. The shredder is not sensing the door being closed. Do you have any idea how the door open sensor works (magnetic, lever, optical, etc.


  • Jimmy Johnson Nov 04, 2008

    I ended up fixing the problem myself. After careful inspection, it appears that there was a filler strip between the door and the collection bin. That filler is missing. I disassembled the shredder and found the "Door open" switch is magnetically activated. I made a wooden filler strip to replace the missing one, attached it to the top of the door and glued a small magnet on the top of the filler strip. Everything works fine now!

    Thanks to everyone for their help!

    - Jimmy



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The swich is contac only , look corner up right for the located the swich internal machine. if have dude of located the swich answer........good luck

Posted on Nov 03, 2008

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Check swich door , if door is open the machie stopped for securyti of the operator . the swich is closed whith the door is closed , good luck

Posted on Oct 31, 2008


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This is how a got my hard to fine gear!

Contact Michael Business Machines for your local dealer 1-800-223-2508

Good luck, Tom

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