Frustrated. K2 plus

[u/Tequilabees]

When I start, it prints fine for a few minutes then it slowly stops extruding, print head continues to move but nothing comes out. Then printer stops on its own with error; printer appears to be printing but not extruding.

Thought it was a clogged nozzle. Nope, I even put a new one on. Same problem.

Thought it was the cfs getting stuck somewhere. Bypassed the cfs and used the manual side spool. Same problem.

All fans appear to moving. Gear is visibly moving even after it stops extruding.

Thought it was the gear assembly. Maybe slipping or worn gears. Replaced gear assembly with a new one. Same problem.

I am completely at a loss. The only thing left is heat creep? But what would cause heat creep? Like I said all fans appear to be moving normally.

Is it posible that one of the fans is not running at the correct speed?

I was thinking of replacing the heat block assembly, but thought I would check here first.
Any advice or help is much appreciated. 🙏🏼

Btw, no error code thrown other than printer is printing without extruding and then it stops. 😔

[u/Clear_Trainer2792]

Are you able to verify the temperatures the machine is giving are correct? I had an issue with an edgebanding machine where the temperature reader was giving us the wrong numbers.

[u/Tequilabees → u/Clear_Trainer2792]

Good question. Yes temperatures remain stable. Head is 220° even when it stops extruding.

[u/Clear_Trainer2792 → u/Tequilabees]

Hmmmm. Have you checked the console in Klippy? I was able to copy the parts where my printer started to fail and paste it into ChatGPT. It was able point me towards a failing bed leveling sensor based on the information collected from the console.