Originally Posted by BKM1066
... I have one fuse that seams to blow whenever I connect, disconnect shore power or the battery, it is the top fuse labeled bedroom lights, it runs the bedroom lights, sink light, stove fan and light, two lights in the garage, and the thermostat. I also have a surge protector but for some reason I did not use it when connected at home
Surge protector would do nothing. Depending on its specs, it may ignore anything on 120 VAC until voltage well exceeds 330 volts. Others should have known that. To say more requires spec numbers for that protector.
AC power cord should be constructed so that appropriate hot conductors disconnect before neutral or safety ground. If not, a voltage spike may exist for reasons too complicated to explain. IOW you should never have to first cut off a beaker. Good practice always says everything must have a backup. Do that to avert problems. If that plug and receptacle do not work right, then breaker will provide backup protection. Only so that a problem does not cause a failure.
That procedure is to avert a failure. But never ignore that failure. Find and fix it. Woefully too few facts are provided for a useful answer.
What is provided says (as Bama Rambler also notes) that tripped fuse is a serious problem unrelated to what else is on that circuit. Even power interruptions do not blow fuses. That defect should be addressed. One thing to inspect has been described. Protector would not and does not claim to solve that defect.