Brownout: Protect Appliances and Know When to Call the Utility

If lights stay unusually dim or appliances struggle to run, switch off nonessential appliances and unplug accessible electronics where safe. Stop laundry and EV charging, and switch off air conditioning that is struggling to run while you check your utility’s outage notices and report the voltage problem. Brownouts can cause equipment to malfunction or suffer damage; utility InnPower recommends reducing appliance use and disconnecting equipment where feasible. InnPower guidance

If cooling is unavailable during extreme heat, seek an air-conditioned location rather than staying in an overheating home. Your local health department or emergency management agency can help locate one. CDC heat guidance

If there is smoke or fire, leave and call 911 from outside. Do not approach electrical equipment that is sparking, wet or visibly damaged. Home fire evacuation guidance

What is a brownout?

A brownout, sometimes written “brown out,” is a reduction in supply voltage: electricity is still present, but below its normal level. A blackout is a complete loss of power. High electricity demand or grid problems can cause brownouts. Dim lights are a possible symptom—not proof of the cause. InnPower explanation

The distinction matters because “some power” does not mean appliances are safe to keep running.

Check the pattern—not the wiring

What you notice	Safe next action
Lights remain dim across several rooms; equipment malfunctions	Reduce electrical use and report a possible low-voltage problem to your utility.
Some lights become unusually bright while others dim, or large parts of the house lose power	Report partial power promptly. Do not assume this is an ordinary neighborhood brownout.
Power is missing only in one room or a small group of outlets	Use the one-room outage safe checks rather than assuming the whole grid is affected.

Eugene Water & Electric Board identifies bright lights in one part of a house and dim lights in another as a possible partial-power condition. It advises customers whose partial power persists after breaker checks to switch off the main breaker and report the outage. Follow your own utility’s instructions, and operate a breaker only if the panel is safely accessible, dry and undamaged. Do not remove covers, touch service wires or test inside the panel. EWEB partial-power guidance

When calling, describe exactly what changed: sustained dimming, unusually bright lights, rooms without power, or repeated interruptions. If the utility finds no supply-side problem, arrange a licensed electrician’s inspection. Dimming or flickering can also stem from customer equipment, including loose wiring or dimmer compatibility—not just the grid. Entegrus guidance

A surge protector is not a voltage regulator

A basic surge protector responds to electrical spikes; it does not correct low voltage. A UPS may add voltage regulation and short-term battery backup, but features vary by model. Check the manual rather than assuming every UPS offers the same protection. Schneider Electric’s comparison

Protection equipment is not a repair for a household electrical fault.

Protect food, then restart gradually

If you disconnect the refrigerator or it stops cooling, keep its doors closed. A closed refrigerator keeps food safe for up to four hours without power. Without reliable temperature information, discard refrigerated perishables such as meat, poultry, fish, eggs and leftovers after four hours without power. FoodSafety.gov also provides item-specific discard rules for exposure to 40°F (4°C) or above for more than two hours. A working interior light does not establish that food stayed cold. Federal food-safety chart

Once normal service is restored, wait a few minutes and reconnect appliances one at a time, following any manufacturer restart instructions. Staggering large loads helps avoid a sudden jump in electricity demand. If bright/dim imbalance or partial power continues, report it rather than restarting everything. Grant PUD restoration guidance