# What do I do for a printer head having filament stuck in the nozzle and not heating up to extrude?

**URL:** <https://forum.lulzbot.com/t/what-do-i-do-for-a-printer-head-having-filament-stuck-in-the-nozzle-and-not-heating-up-to-extrude/24427>\
**Category:** Filament\
**Created:** [April 19, 2022, 4:52pm UTC](https://forum.lulzbot.com/t/what-do-i-do-for-a-printer-head-having-filament-stuck-in-the-nozzle-and-not-heating-up-to-extrude/24427 "2022-04-19T16:52:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![filaNinja](https://avatars.discourse-cdn.com/v4/letter/f/7bcc69/32.png) [@filaNinja](https://forum.lulzbot.com/u/filaNinja)\
**Post date:** [April 19, 2022, 4:52pm UTC](https://forum.lulzbot.com/t/what-do-i-do-for-a-printer-head-having-filament-stuck-in-the-nozzle-and-not-heating-up-to-extrude/24427/1 "2022-04-19T16:52:34Z")

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What do I do for a printer head having filament stuck in the nozzle and not heating up to extrude?

I went through the menus to heat up the plastic to a state at which it could flow through the nozzle and it isn’t working…Any thoughts?

Thanks…

PS what color do you love?

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**Author:** ![TheVirtualTim](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.lulzbot.com/thevirtualtim/32/9965_2.png) [@TheVirtualTim](https://forum.lulzbot.com/u/TheVirtualTim)\
**Post date:** [April 20, 2022, 10:48pm UTC](https://forum.lulzbot.com/t/what-do-i-do-for-a-printer-head-having-filament-stuck-in-the-nozzle-and-not-heating-up-to-extrude/24427/2 "2022-04-20T22:48:52Z")

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If it isn’t heating up (you’ve verified that?) then there can be several causes.

There is a fuse on the board inside for the heater. I would start by checking the fuse.

If the fuse is ok, I’d use a multi-meter to test continuity from the board to the heater-cartridge on the print-head.

Your heater cartridge may have gone bad and need to be replaced.