Stay Powered and Safe After Chicago’s Rough Storms
Chicago summer storms hit hard. Heavy rain, sudden wind, flooding, and lightning can knock out power for hours or even days. When the power comes back, your standby or portable generator has already done a lot of work, and the storm may have affected it in ways you cannot see right away.
The time right after power returns is the best time to check your generator. You want it ready for the next round of storms, not left with hidden damage or problems. This guide walks through simple, practical generator maintenance steps you can safely handle on your own, and points out where it is safer to let a licensed electrician or generator technician step in.
The goal is to help homeowners and small building owners on Chicago’s North Shore keep backup power safe, reliable, and ready for the next outage.
First Safety Checks When the Power Comes Back
When the lights come back on, do not rush straight to your generator. Take a moment to stay safe and look around.
Start with a quick safety sweep:
- Look for downed or sagging power lines nearby
- Check for standing water around the generator pad or on the ground
- Smell for gas or fuel odors in the area
- Listen for odd buzzing or crackling from electrical equipment
If you see downed lines, heavy flooding around electrical equipment, or smell gas, move away and call the utility or 911. Do not try to fix or unplug anything in those situations.
If everything looks safe and utility power seems stable, you can shut down the generator. Follow the manufacturer’s steps, but the basic idea is:
- Let the generator run with no load for a few minutes to cool
- Use the controls to stop the unit; do not pull wires or flip random switches
- Keep children and pets away until the unit is cool to the touch
Do not touch the system at all if:
- The generator is sitting in floodwater or mud
- The housing is cracked, bent, or has broken pieces
- You see scorch marks, melted plastic, or burned wires
In these cases, have a licensed electrician or qualified generator technician inspect it before anyone tries to start or service it.
Visual Inspection After Wind, Water, and Lightning
Once you know the area is safe and the unit is off and cool, a simple visual inspection can tell you a lot. You do not need to open panels or handle wiring; just use your eyes and nose.
Walk around the generator and look for:
- Loose or missing panels or screws
- Damaged conduit or wiring running to the house
- Frayed or pinched cords on portable units
- Dents, cracks, or debris wedged into vents or fans
Wind can blow branches, siding, or even patio furniture into your generator. Anything blocking vents or fans can cause it to overheat the next time it runs.
After heavy rain or flooding, check for water signs:
- Puddles or soggy ground right around the unit
- Rust spots that look fresh or spreading
- Mud lines on the enclosure or nearby walls that show how high water reached
If you suspect water got inside the enclosure, that is a job for a professional. Internal parts, such as electronic controls and wiring, do not mix well with moisture.
Lightning and power surges can leave clues as well. Step back and look at:
- Outlets on a portable generator for burned or melted plastic
- Transfer switches for dark smoke marks or melted labels
- Any burned-plastic or electrical smell near the equipment
If you see or smell these signs, leave the generator off and have it checked before the next use.
Smart Generator Maintenance Checks You Can Do Safely
There are a few simple generator maintenance tasks most homeowners can do without tools or electrical training. The key is to stay outside the unit and stick to what you feel comfortable doing.
For both standby and portable generators:
- Clear branches, leaves, and trash from around the unit
- Gently wipe off dirt from louvers and vents with a dry cloth
- Keep at least a few feet of open space on all sides for airflow
For standby generators, stand in front of the control panel and:
- Check for warning lights, error messages, or unfamiliar symbols
- Confirm the unit is set to “auto” mode, not “off” or “manual”
- During a short test run, listen for new rattles, grinding, or loud knocking
You do not need to change settings or reset codes on your own. Just note what you see so you can tell a professional later.
For portable generators, focus on:
- Extension cords: look for cuts, crushed plugs, or melted spots
- Placement: make sure the unit is kept outdoors, far from doors, windows, and vents
- Oil and air filter: if the generator ran many hours, check the oil level with the dipstick and look at the air filter for heavy dirt
If something seems unusual, noisy, or difficult to start, pause and have it checked instead of pushing through.
When Flooding Hits: Special Care for Water-Exposed Generators
Water and electricity are a bad mix, and that is especially true after flooding. Even if a generator looks fine on the outside, water can get into bearings, wiring, and electronic controls.
Light splash or surface dampness is one thing. If the generator only got a little rain on the case and the area around it has dried, it may be fine after a careful check. Still, let everything dry fully and have any questions reviewed by a professional.
More serious water exposure needs extra caution:
- If water reached any outlets, wiring, or the bottom of the enclosure
- If the unit sat in standing water or wet mud
- If you see lines of dirt, silt, or algae on the unit showing flood height
In those cases, do not try to start the generator or plug anything into it. Take photos, note how high the water came, and leave the rest to a qualified electrician or generator technician. Turning on a flood-soaked generator can cause permanent damage or create a shock risk.
Testing and Ongoing Generator Maintenance Before the Next Storm
Once you have done your post-storm checks and any needed service has been taken care of, it is time to think ahead. A calm, dry day is the best time to test and maintain your generator.
A safe test run usually looks like this:
- Start the generator according to the instructions
- Put a light, steady load on it, not every appliance at once
- Listen for odd noises, watch for smoke, and check for warning lights
- Walk around and look for new vibrations or shaking
Keep up with regular generator maintenance during storm season:
- Run the unit on its recommended exercise schedule
- Check that fuel is fresh and stored safely
- Change oil, filters, and spark plugs based on the manufacturer’s timing
Consider keeping a simple log. Write down:
- When the generator ran and for how long
- What kind of storm or outage happened
- Any odd sounds, smells, or warning codes
That small habit can make it much easier for a professional to spot patterns and stop small issues from becoming major failures.
Build a Post-Storm Generator Checklist You Will Actually Use
After one or two rough storms, it helps to have a written routine instead of trying to remember each step. A simple checklist you keep with the generator can make a stressful time feel more manageable.
Your list might include:
- Stay clear and look for downed lines, floodwater, and gas smells
- Shut down the generator safely once power is stable
- Walk around and inspect for damage, water signs, or burning smells
- Clear debris and check cords, vents, and basic controls
- Do not touch or start the unit if it was in floodwater or shows scorch marks
Keep this checklist with the generator manuals, warranty details, and emergency phone numbers. Make sure other adults in the home know where it is and how to follow it. A quick review each spring, before Chicago’s stormy season, can help you spot issues early and keep your backup power as reliable as the rest of your electrical system.
With smart post-storm generator maintenance and the right professional help when you need it, you can face the next summer storm with greater confidence.
Keep Your Home Powered Safely and Reliably
Reliable backup power starts with consistent generator maintenance from a team that knows what to look for before problems start. At iConduit, we inspect, test, and service your system so it is ready when the power goes out. If you are noticing unusual noises, error codes, or simply cannot remember your last service, we are ready to help. Reach out today through our contact us page to schedule your appointment.