Coyote74 wrote:
it was a 34750 120/240 50amp portable unit its protects low voltage @ 102 or below and 132 above over voltage. one row over, a guy burnt a cord. check voltage on his row and it was 70v. My digital meter in the house plugged in to a 115 socket read 120v. I don't know how this happened and trying to understand. surgegard still works and counts off its delay. my heat pump runs off 125v 30amp or 50 amp
Given your posts I suspect that the failure was not due to low voltage. However given the techs input you might want to have the SG checked.