One other thought came to mind, if there is a cluster of homes experiencing the problem, it might be a good idea to call SECO and ask them to check the facilities in the area, incase there is a problem on the utility side. I have not seen this as a proposed cause, but that would typically be the only thing in common with several houses.
Please keep us up to date with what you find.
__________________
Pennsylvania, for 60+ years, most recently, Allentown, now TV. 
|