Reference
How often should you test a standby generator?
Run the standby generator under load every 3 months so it starts the day the power goes out. That is the interval the HomeAlmanac app schedules for this job, adjusted for the systems your home actually has.
- How often
- Every 3 months
- Time needed
- 20 min
- Best time
- Any time of year
- Priority
- Medium
Why it matters
A generator that won't start during an outage is useless. Regular exercise keeps it ready.
How to do it
Run the generator under load for the manufacturer's recommended interval, check oil and fuel, and confirm the transfer switch works.
When to do it
There is no season for this one. What matters is the interval, which is exactly the kind of thing that quietly slips when you are tracking it in your head.
HomeAlmanac schedules this one for you, works out the next due date each time you mark it done, and reminds you before it is late.
Build your free planWhat this protects
Staying on this schedule is one of the biggest levers on how long these last.
Quick answers
- How often should you test a standby generator?
- Run the standby generator under load every 3 months so it starts the day the power goes out.
- Why does it matter?
- A generator that won't start during an outage is useless. Regular exercise keeps it ready.
- What happens if I skip it?
- Nothing, right up until it is expensive. These jobs are cheap and quick precisely because they are preventive; the repair they prevent is neither.