Fan dont work anymore
mickey30m last edited by mickey30m
Suddenly my layer fan dont work any more.
i change the fan for a other one, but that also dont work.
so i put a meter on the pins on the board and i measure 0,99 volt. (Fan0)
what can i do.
the jumpers are good, on 12v
what can i check.?
When i put the fan directly on 12v he works fine
If the fans don't work even when connected to the always-on fan connectors, then the fan voltage supply has fused. This happens if you short the two pins of one of the fan outputs together.
To fix it:
- First check that you have the jumper in the correct position in the 3-pin fan voltage selector jumper block.
- If you have a version 1.03 or later Duet, check the 1A blade fuse visually or with a multimeter, and replace it if it has blown.
- If you have an older Duet, use a multimeter to check that there is continuity between the pin at the VIN end of the fan voltage selector jumper block, and the VIN+ terminal. if there is no continuity, then a via in the PCB trace between those pins has fused. You can bypass it using a piece of wire on the back of the PCB. There is another thread about this issue that includes a diagram.
- Before applying power again, check that you have resolved the short that caused the problem.