Lockups &/or strange things happening are definitely a sign that line transients are occasionally present. Unless you want to lease a Dranetz line monitor analyzer for a week to 30 days, just buy a basic used line conditioner right here & try it. Resell if you do not achieve the desired results; you'll lose a little $ on shippings but will save much time & expense vs. doing it with an analyzer. Filtered AC cord(s) are another possible approach. A suitably spec'd MOV installed across your utility outlet may help as well, but unless you already know what that is, you may not be technically equipped to spec out the required model. Sorry but I won't go into further detail on that here, for basic liability reasons.
