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by jone liu
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)