Factory reset (CORE One, MK4/S, MK3.9/S, MK3.5/S, MINI/+, XL)Troubleshooting > Printer troubleshooting
Bed preheat error #26201 (MK4S) #13201 (MK4) #27201 (MK3.9S) #21201 (MK3.9) #28201 (MK3.5S) #23201 (MK3.5)Troubleshooting > Printer troubleshooting
Bed thermal runaway #26203 (MK4S) #13203 (MK4) #27203 (MK3.9S) #21203 (MK3.9) #28203 (MK3.5S) #23203 (MK3.5)Troubleshooting > Printer troubleshooting