# I think I fried my Taz 6 -- help!

**URL:** <https://forum.lulzbot.com/t/i-think-i-fried-my-taz-6-help/6715>\
**Category:** LulzBot TAZ\
**Created:** [May 21, 2019, 5:01pm UTC](https://forum.lulzbot.com/t/i-think-i-fried-my-taz-6-help/6715 "2019-05-21T17:01:52Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Tom18991](https://avatars.discourse-cdn.com/v4/letter/t/c68b51/32.png) [@Tom18991](https://forum.lulzbot.com/u/Tom18991)\
**Post date:** [May 21, 2019, 5:01pm UTC](https://forum.lulzbot.com/t/i-think-i-fried-my-taz-6-help/6715/1 "2019-05-21T17:01:52Z")

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I had my Taz 6 powered up and the nozzle hot, and used a brass wire brush to clean gunk off the nozzle. When I did, something apparently shorted out at the nozzle and the screen went blank. The on/off switch still lights up when I turn the machine on, but there are no other signs of life. Is there a fuse or breaker (or even power supply) inside that I might be able to replace, or am I looking at sending it in to Lulzbot for repair. I’m reasonably handy with electronics but never dug into the Taz. It’s been a workhorse for me for a couple years now, and instantly miss it. ☹

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**Author:** ![nopick](https://avatars.discourse-cdn.com/v4/letter/n/7bcc69/32.png) [@nopick](https://forum.lulzbot.com/u/nopick)\
**Post date:** [May 21, 2019, 6:49pm UTC](https://forum.lulzbot.com/t/i-think-i-fried-my-taz-6-help/6715/2 "2019-05-21T18:49:06Z")

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If you shorted the heater cartridge, it might have taken out the F3 fuse. I have heard of folks killing the board as a whole using a brush while the printer is powered on. Try using green or blue scotchbrite instead.  
  
  
[https://reprap.org/wiki/File:Ramb1-2-fuses.jpg](https://reprap.org/wiki/File:Ramb1-2-fuses.jpg)

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**Author:** ![Tom18991](https://avatars.discourse-cdn.com/v4/letter/t/c68b51/32.png) [@Tom18991](https://forum.lulzbot.com/u/Tom18991)\
**Post date:** [May 22, 2019, 1:47am UTC](https://forum.lulzbot.com/t/i-think-i-fried-my-taz-6-help/6715/3 "2019-05-22T01:47:39Z")

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Thanks for that reply. After posting here, it occurred to me to just call Lulzbot support, and they were great! No phone tree, no scripted call-center nonsense, no “ticket” – just a knowledgeable person who listened to my story, sized up the likely issue (the fuse) and sent me the info needed to diagnose it and get a replacement fuse. The whole call took maybe 2 or 3 minutes. Way to go Lulzbot! The Taz 6 has already proven itself to be wildly better than my former MakerBot, but little did I know the its support was equally superior. MakerBot charged me $100 to open a support ticket, then took two weeks to determine the firmware that shipped new with the machine made it a brick. They emailed me a firmware update and kept the $100. So happy to learn Lulzbot support it the exact opposite! 🙂

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**Author:** ![b-morgan](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.lulzbot.com/b-morgan/32/11517_2.png) [@b-morgan](https://forum.lulzbot.com/u/b-morgan)\
**Post date:** [May 22, 2019, 5:11pm UTC](https://forum.lulzbot.com/t/i-think-i-fried-my-taz-6-help/6715/4 "2019-05-22T17:11:50Z")

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I’ve protected myself from these potential shorts by adding some high temperature silicone (Permatex Red RTV High Temp Gasket Maker #81160) to the wires as they enter the heater block.