@Creality - You market the Hi Combo as an entry level, “Hands Off” printer. You REALLY need to re-design the extruder assembly!
I had my first clog and needed to open the extruder. It takes removing 9 bolts of 3 different sizes, and unplugging 3 wiring connectors just to access the extruder. This is NOT entry level! The wiring connectors are very fragile, and will not survive multiple disconnections.
If you want to design a truly ‘entry’ level machine you need to start by making the access for maintenance super easy and reliable.
I was thinking of purchasing a second Hi, but not now.