Extended Overvoltage Extended Overvoltage compaqtech (TechnicalUser) (OP) 15 May 06 04:50 Hi can anyone shed some light on this. I am using powerchute business edition and i get this error every morning "PowerChute Business Edition has detected the following event: Extended Overvoltage" I have checked and everything seems ok I cant find any relevant reference to it on the APC site.Thanks in Advance RE: Extended Overvoltage dkediger (MIS) 16 May 06 14:57 I'm surmising that message means that the UPS is measuring the incoming line voltage as above the appropriate "nominal" value. This would indicate that somewhere a stepdown transformer is supplying the overvoltage. It could either be the power utility's transformer if your a very small building with just "residential" type service, or a private transformer if you're supplied with a higher voltage from the utility.I would contact the utility, let them know the situation, and find out which type of service you have. If its a non-residential type, then the problem is most likely a private, internal stepdown transformer and you'll then need to contact an electrician.