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Wrenches, Very seldom do inverters in off grid systems ever go to sleep anymore, given the increase in phantom electronic loads and greater customer expectations. Coupled with lower module prices, we usually size larger arrays and inverters remain on continuously. However, we also service and upgrade many existing systems, and some customers still want their inverters to go into search mode. They typically either have gotten used to a more energy frugal lifestyle over many years, or (to their credit) choose to buck the system and live with a lighter energy and resource footprint. Twice in recent months we have added Midnite MNSPD MV surge arrestors to the AC output of smaller systems and discovered that the inverters will no longer go into search mode. It doesn't appear to make any difference where the search watts threshhold is set. One system used a 24V Outback FX2524T (with current boards following a nearby lightning strike) and the other used a Magnum MS2812. In the former case, we defeated the search (against the customer's preference, as she liked the total silence once her day was done). In the latter, the customer rejected and we removed the surge arrestor once it became clear that the inverter wouldn't sleep. Has anyone else experienced this? Is there a fix for it? Robin, can you chime in here (off list if necessary; I'll carefully post your response)? Thank you, Allan --
Allan Sindelar
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