I just fixed my chnc was the main spindle encoder. I just wondering how many amp fuses are you running? The second thing is to check the spindle encoder and see if you have a scratch on the pickup or if it's to far away from the wheel. These things need to be set between .004 to .008 away. I'am thinking you encoder is messing with you but keeps blowing your fuse before you get all the alarms.