Sorry for the delay. Constantly hitting a Surge Protector with surges WILL "use it up". Most are sacrificial devices. Each "hit" grinds down what it will do "next time". And the better ones come with lights to tell you when they "are gone"...
If at all possible, this should be handled another way, maybe like a different circuit to isolate the surge farther "downstream" from the protector or computer. I'm assuming they were plugged into the same wall outlet or something? Rick Glazier From: "Hunter, Gary" February 18, 2010 10:30 PM
Thanks for the advice Duncan.
Got my new surge protectors delivered today and guess what. When the Laser printer kicks in the PC no longer turns off :) So I guess the surge protection on the old UPS is not up to scratch :-)