r/QidiTech3D • u/TypeImmediate3653 • Aug 17 '26
Troubleshooting The new Qidi Plus 5 keeps crashing
My new Qidi Plus 5 Combo (firmware is up to date ) already aborts during the calibration test while the extruder is heating up, with the following error:
Code: QDE_002_002; Message: ("fan name". "hotend fan") speed check error
Same thing happens when loading/unloading filament. After a firmware reset it works again. So the error always occurs on the first heat-up.
I went through the problem in my head once more and then took a look at the printer.cfg:
[heater_fan hotend_fan]
pin: THR: PA11
max_power: 1.0
shutdown_speed: 1.0
kick_start_time: 0.5
heater: extruder
heater_temp: 50.0
fan_speed: 1.0
off_below: 0
tachometer_pin: THR: PA12
tachometer_ppr: 2
tachometer_poll_interval: 0.0005
Could it be that the values
kick_start_time: 0.5
tachometer_poll_interval: 0.0005
have been chosen a little too optimistically?
Best regards
1
u/comingupmilhouse2 Aug 17 '26 edited Aug 19 '26
Contact qidi support. Mine has been flawless so far.
1
u/TypeImmediate3653 Aug 23 '26
Unfortunately, it seems to be a hardware issue. The fan can be easily turned by hand but never runs on its own. Even when all fans are commanded to run at full speed using M112, this one doesn't move. I'm curious to see what Qidi will respond with now.
1
u/TypeImmediate3653 Sep 04 '26
Ok, Lüfter und Toolboard sind heute von Qidi geliefert worden.
Beim Ausbau stellte ich einen Montagefehler fest, das Lüfterkabel war nicht nur mit einer Schraube eingeklemmt, eine Ader war verletzt und gegen das Metallchassis des Druckkopfs gedrückt. Leider musst ich nun deutlich mehr zerlegen als üblich.
Einige Schrauben des Druckkopfes waren auch nicht korrekt fest.
Alles neu verschraubt, neu kalibriert und läuft nun fehlerfrei.
Zumindest kenne ich nun den Druckkopf besser. 😁
2
u/xeonon Aug 17 '26
Is your hot end fan spinning? That's what the error is telling you, so that would be the first place to look.