Side filament sensor not connected, check wiring.
 
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Side filament sensor not connected, check wiring.  

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Gizmotoy
(@gizmotoy)
Eminent Member
Side filament sensor not connected, check wiring.

I noticed that the filament sensors on my Core One+ stopped working.  It seems like neither one is currently functional, but they just silently failed.  However, if I go into settings and toggle them off, then back on, I get a message that says "Side filament sensor not connected, check wiring."  This seems clear, but I don't see anything obviously wrong, and the printer has not undergone any recent changes.  Is there a service guide or something for how to check this more thoroughly?

Posted : 08/05/2026 5:07 pm
Gizmotoy
(@gizmotoy)
Eminent Member
Topic starter answered:
RE: Side filament sensor not connected, check wiring.

For anyone else finding this later, I ended up going to support.  We checked connectivity on both ends of the sensor cabling.  In "Info" it said "disconnected / 3", and it sounds like the filament sensor needs to be replaced.

Posted : 08/05/2026 11:59 pm
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