Since installing a 16-kilowatt Generac Guardian in March 2021, one homeowner said they have handled the oil, filter, and battery upkeep themselves rather than calling in a factory technician.
At 63 run hours, the owner wanted to know whether any other checks were worth doing before paying for service.
Here's what to know
In a Reddit thread in r/Generac_Generators, the owner described a self-installed 16-kilowatt Guardian with a 100-amp automatic transfer switch, saying it had "never been seen by a factory tech," and that "all oil, filter changes, battery checks and replacements and 'scheduled' items done by me."
They also said the five-year Mobile Link warranty had already run out, and that they later paid to extend the remaining coverage to 10 years. Explaining why, the owner said, "I'm stingy with money and do not want to pay a tech to come and 'look' at it without doing anything I can't do myself."
Replies mostly said the routine maintenance sounded solid, while also pointing out a few easy-to-overlook items.
One user said, "I recommend checking valve clearance at least every 5 years just need new valve cover gaskets as to parts."
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Another user said, "If your 16 kw is the newer hydraulic valve units, than oil changes and battery are the big issues to maintain. If it has manual valves, youll need to adjust them."
Another added, "If it has not run under a load in the last few months I would do that as well. Check the firmware to make sure it is up to date."
Where can I learn more?
Homeowners sorting out generator maintenance often end up weighing bigger backup-power questions too. These stories look at noise and warranty concerns, carbon monoxide risks, battery alternatives, and newer home backup setups.
• Generac owners debating noise, airflow, and warranty risk found some enclosures can create new problems.
• After Hurricane Beryl, experts warning about health risks of backup generators pushed safer home options.
• Energy advisors say newer battery systems can replace gasoline generators that raise carbon monoxide concerns.
• Across the U.S., installers say home backup batteries are replacing aging generator setups.
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