Peak summer on the northern plains means heat, humidity, and severe thunderstorms that arrive with little patience for equipment that was “probably fine” in May. If you own a standby generator, storm week is when exercise logs, fuel margin, and transfer switch behavior either pay off—or do not.
Prairie Power - Generator Solutions fields more service calls during June and July storm clusters than during quiet weeks in between. This checklist is what we want every customer to have done before the sky turns green—not because fear sells generators, but because maintenance is cheaper than emergency work.
Before the forecast turns
Confirm your last professional service date. If you are on Essential Annual, Preferred Semi-Annual, or Premier Uptime, know when your next visit falls relative to peak summer. See service plans for tier details.
Run a visual walkaround: clear ventilation openings, confirm clearances after mowing, and note any damage to conduit or fuel lines.
Exercise and run hours
Standby units need exercise that tests transfer switch behavior, not only a brief idle spin. Verify run hours advance on schedule and listen for smooth starting and normal shutdown.
If exercise failed twice in a row, stop forcing automatic retries and schedule licensed service. Repeated failed starts can damage fuel lines and starter batteries.
Fuel checks
Propane: write tank percentage with today’s date. Exercise cycles and summer cooking both draw from the same supply.
Natural gas: look for obvious piping damage. Treat any sulfur or rotten-egg odor as urgent.
Priority circuits under summer load
Air conditioning, refrigeration, sump pumps, well pumps, and medical equipment are the loads customers notice first during a heat wave outage. Confirm your transfer switch covers the circuits you assume it does—especially if you added EV charging, pool equipment, or shop circuits since last season.
Transfer switch warning signs
Hesitation, buzzing, or failed transfers during exercise belong in licensed hands before the next outage. Visual inspection for damage or pest activity is fine. Do not open energized equipment.
When to call
Schedule service when exercise fails, alarms repeat, or you are unsure how the system behaved during recent utility bounces. Contact us or call 701-935-3617. For ongoing coverage, ask about service plan enrollment.
Related reading
For mid-season rhythm, see mid-summer storm weeks standby rhythm. For summer load context, read July heat and summer storms. For installation questions, visit residential generators.
Wrap-up
Storm week at peak summer is manageable when the basics are confirmed: fuel, exercise, clearances, transfer behavior. Do that work in calm weather. When you want a technician to verify the system end to end, request a free estimate or schedule service through contact. Kieley Electric serves North Dakota and Minnesota as a Generac Authorized Dealer.