Fan Hotend Abnormalities

Bambu Lab P1 Series Troubleshooting
1

Fan Hotend Abnormalities. Desperate! Any ideas?

After trying all the compressed air solutions I started buying ALL the recommended replacement parts. Nothing has worked. I don’t know what else I can replace and I am getting killed in shipping costs and time every attempt I make.

Here’s what I replaced

  1. Replaced the TH Board FPC Cable - P1 Series - P1 Series Exclusive
  2. Replaced TH Board - P1 Series - P1 Series Exclusive
  3. Replaced the Complete Hotend Assembly - P1 Series - 0.4mm Hardened Steel / P1 Series Exclusive
  4. AND MOST RECENTLY replaced the Extruder Interface Board - P1 Series
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2

I hope you find a solution im in exact same boat. was print ASA in an enclosure and got this message. i changed out all the parts you did as well. tried 2 different brand new hotends and i replaced the extruder interface board. nothing works. the fan doesnt even spin up when the printer is first turned on like it should. only part not replaced was the th board FPC cable. i dont think its the cable. im at a loss. hope you find answer and post it back here or get some help as customer support takes weeks to answer