Ender 3: Fan or board failure - advice sought

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PLAPLAPLA
Posts: 3
Joined: Tue Oct 06, 2020 11:20 am

Ender 3: Fan or board failure - advice sought

Post by PLAPLAPLA »

I am running an Ender 3 Pro.
Prints started to fail and I noticed that the fan that cools the hot end (extruder part) was not running.
I bought a new fan. I cut off the old fan and tested it on a 24v battery. It worked.
A voltmeter on the supply wires from the main board showed just a few millivolts.
So I suspect the main board has failed.
Before I go buy a new one, I would appreciate the view of experienced 3D print experts.
Does my diagnosis make sense? Do boards fail in that way? Just seems odd to me.
PLAx3



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