The Original Prusa i3 MK3 is the successor of the award-winning Original Prusa i3 MK2 3D printer.

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Problem with the filament sensor

During the self test. I keep getting a filament sensor wiring error. I have chk both connections and they are connected correctly. I have used a multimeter on all the wires and power is flowing from one connection to the next on all wires. What could the problem be?

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2 Answers

Hi David,

the filament sensor can be faulty, please contact our support using live chat or email (info@prusa3d.com)

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How do I access the live chat ?

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Hi David,

please see the Step 7 : 1. Introduction

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I'm having the same problem; have rechecked all wiring, tested the cable, and inspected the sensor for visible damage or debris. No response from info@prusa3d.com (sent 12 Apr). Please help.

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Hi Christopher, I will alert colleagues to get in touch with you.

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David gallegos will be eternally grateful.
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