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- Wed Sep 05, 2018 9:07 am
- Forum: Geeetech I3 Pro W
- Topic: Control Board issues
- Replies: 10
- Views: 13890
Re: Control Board issues
First, use a multimeter to detect that the fuse is bad. Second, if the fuse is bad, change a good fuse, remove all 4988, and re-power. (A bad 4988 may cause such a fault)