Possible causes
- Utility switching or storm activity
- Loose or failing service connection
- Large load changes
- Damaged wiring or equipment
- Open neutral condition
Safe checks before you call
- Note when the surge occurs and which devices are affected.
- Disconnect sensitive devices only if the area is safe and equipment is not hot or damaged.
- Do not open the panel or rely on a power strip to correct repeated surges.
Professional assessment: A professional can help determine whether the concern is at an appliance, branch circuit, panel or service connection.
When it may be urgent
Call promptly for repeated surges or lights that brighten and dim; treat heat, burning odor, shocks or smoke as an urgent hazard.
FAQs
Can a surge protector stop every home surge?
No. Surge protection has limits and does not repair an underlying wiring or service problem.
What if lights suddenly get brighter?
Stop using affected equipment and call promptly because a service or neutral concern may need evaluation.