So had a big crash on the cnc router the other day. Z axis dived into the part and stalled spindle for about 4 secs. After I pulled power and reset spindle homed machine the spindle would not power up so I emailed the seller of the unit asking if they had any idea if there was a user replaceable fuse inside. Being impatient I decided to take lid off so I can root around. Removed 2 screws and cut the warranty sticker. Found a F6AL250V 20mm fuse that was bad. Ordered a few off amazon. Just wanted to post to show there is a replaceable fuse in the unit. That it might help someone else latter.