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Generac Error Codes List Serial Number To GoEnter your model or serial number to go directly to your specific information or find your model through the Product Lookup.Energy insights are accessible right from your pocket so you never miss a thing.Support for Trimmer Mowers Support for Wood Splitters Support for Chipper Shredders. Below is a graph showing the battery voltage during the generators weekly exercise. Note this is a follow up on the post linked below where we installed an external battery charger on this Generac generator. The Battery Tender we installed has been working well for over 4 years using the same battery that failed twice using the factory charger. The most recent issue with the generator was a failure to complete its weekly self test. So I started looking for reasons that the sensor board might not be getting power. Let the sleuthing begin Danger Will Robinson You should have a qualified generator service technician diagnose any issues with your generator. The voltage levels in the generator and associated switch gear are lethal. Forgetting to disconnect the power or touching the wrong spot at the wrong time can and will kill you. It is too easy to forget that you closed a breaker a few minutes ago. Even then I pretend that every circuit is still live and avoid touching any conductors. Belt AND suspenders type of caution is the only way to go when dealing with electronics that can kill you. When everything was off, I open up the generators electrical panel and the transfer switch panel to look for obvious issues like disconnected wires, loose wire terminals and blown fuses. I got luck and found a blown fuse in the top of the transfer switch. There had been thunderstorms in the area shortly before the generator failed its first weekly test. I ordered a pair of fuses, 7 each, and a 15 fuse pullerinstaller. The fuse were not cheap but I ordered two since there is at least a 50-50 chance that the fuse blew for a reason and the first replacement will blow again as soon as you power the unit back on. I would start with again killing the power and checking the resistance between the fuse terminals and the chassis, looking for a frayed wire shorting against an edge somewhere. The fuses arrived quickly, thank you Amazon, and I repeated the process of turning the generator off and turning off power to the house. I then used the fuse puller to remove the old fuse and install the new one. To be honest, I also wore rubber gloves when working with the fuses. We reconnected the house power, set the exercise time and the generator ran fine. It has now been over a year since the fuse was replaced and the generator has not missed a weekly self-test. It has also automatically started several times during actual power outages. I am doing some early testing for a battery voltage monitoring system that I put together for this generator.
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