What does it mean to put your standby generator system in “Exercise Mode”?

All home standby generator systems have a function known as exercise mode, which automatically turns the generator on at a scheduled time. Once on, the generator will typically run for 20 to 30 minutes and then shut off. This is important as it keeps everything lubricated and allows you to monitor the standby generator system for any issues.

The generator can be programmed so that it switches to exercise mode each week on a specific day and time. After the installation is complete, the electrician will set the system so that it turns on in exercise mode. During this time, the generator will run but the transfer switch will not activate. This enables the electrician to inspect the standby generator system and make sure that there are no leaks or other issues.
Once this is done, you can then program the unit so that it switches to exercise mode at a day and time of your choosing. It is always best to set it so that this happens when you will be home and can monitor the standby generator system for any signs of a problem. Most manufacturers recommend that you set it so that the generator runs once a week, but some say it is only necessary every two weeks or even once a month. Whatever the manufacturer recommends is what you should follow.