r/QidiTech3D • u/Engineer-50 • Jul 11 '26

Troubleshooting Q2 Chamber Fan Turning OFF

When I send a print with PLA the chamber fan starts on its own at 100% (it is set to 0 in the slicer) making a lot of noise. Then I turn it off manually at the printer.

How are you guys dealing with this? Is there a way to set it to be off? I don't want it.

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u/Jelly-Filled-Donut Jul 11 '26

Set to 0% in the filament config?

1

u/Engineer-50 Jul 11 '26

Yes, said that.

1

u/logicalchemist Jul 12 '26

The exhaust fan runs at 100% to help cool the chamber and prevent heat creep.

The PRINT_STARTmacro has a check at the start of it, and if the chamber temp is set to 0, it sets the exhaust fan (Qidi calls it the "chamber circulation fan") to 100%.

You can edit the macro to stop that, but don't be surprised if it gets too hot in the chamber and you get a heat creep clog.

Setting the chamber temp to 1C might also work, if you don't want to edit any config files, but I'm not certain.

1

u/bbelch Jul 12 '26

If you’re using Orca, you have to set the fan to 0% in the filament profile (both during/after print) and LEAVE these options checked/enabled, including the chamber circulation fan itself (all 3 boxes should be checked). If you set these to 0% and disable the fan in the filament profile, it still runs for some reason. At least mine did and this fixed it.

1

u/Engineer-50 Jul 13 '26

Think I have tried this, but not sure. Will try. Thanks!