MCU Unable to Connect when trying to heat bed

General Discussion
1

I’m running an Ender 3 with SKR mini e3 v3 with a Raspberry Pi 4 connected to it. Everything worked fine for 2 weeks until today. Everything on Klipper works, except for when I try to heat the bed. I set the bed temperature to anything (say even 25 degrees), the bed heater goes to 100%, stays there, and then the error “MCU: ‘mcu’ is unable to connect”. I’ve re-entered the correct MAC path multiple times to no avail. Attached are my klipper and moonraker log. Any suggestions?
klippy (1).log (4.3 MB)
moonraker.log (472.3 KB)

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2

I am not a master
but I had the same problem last month Creality CR-10-SMART-PRO
bed heater resistor was broken
I changed the bed completely and everything was fine.
I recommend you check the bed cables and resistance
maybe it will help

2 Likes
3

Okay, I’ll try that haha

4

I remember. Weird issue - simple fix.

1 Like
5

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