After a suspected power surge, deal with immediate danger before testing equipment. If you see smoke, fire, sparks, heat, damaged wiring, hear persistent arcing or buzzing, or smell burning, move away, call emergency services when appropriate, and do not touch electrical equipment. For non-emergency damage, document the event, check utility status, keep suspect devices disconnected, inspect only visible indicators, and contact qualified help.
Do not open the electrical panel, surge protector, disconnect, or appliance enclosure to investigate. Water, storm damage, and damaged service equipment require extra caution.
1. Check for immediate hazards
From a safe position, look and listen for:
- smoke, flames, sparks, or a burning odor;
- melted plugs, scorched outlets, or hot enclosures;
- fallen lines, damaged service equipment, or storm debris;
- water near electrical equipment;
- repeated breaker operation, buzzing, or arcing; and
- anyone shocked or injured.
Do not approach a fallen line or anything it touches. Follow the utility’s emergency guidance. For fire or medical danger, call emergency services.
2. Separate a surge from a continuing outage problem
Check the utility’s official outage map or alert channel. Ask whether neighbors lost power. A surge can occur before, during, or after an outage, but sustained flickering, unusually bright/dim lights, repeated restoration attempts, or partial power can signal an ongoing supply or wiring problem.
Do not repeatedly cycle the main breaker or plug equipment back in to “see what happens.” Contact the utility for supply symptoms and an electrician for property-side concerns.
3. Record the event before cleanup
Write down:
- date and approximate time;
- weather, nearby lightning, utility switching, outage, or restoration sequence;
- rooms/circuits/equipment affected;
- visible error codes and indicator states;
- odors, sounds, smoke, or heat; and
- utility incident or outage number.
Photograph visible damage and equipment labels only when safe. Save receipts, model/serial numbers, estimates, and communications. Do not discard a failed SPD or appliance before warranty/insurer instructions; it may be needed as evidence.
4. Check the whole-home SPD externally
Look at the device’s visible light, display, or alarm without removing any cover. Compare it with the exact model’s instructions.
- A changed/off indicator may mean protection is diminished, failed, or simply unpowered; the manual defines it.
- A normal light does not prove every connected appliance is undamaged.
- A damaged enclosure, heat, odor, or abnormal sound requires professional attention.
If the status is unclear, note it and contact the installer or manufacturer. See how to check and maintain a whole-home SPD.
5. Keep damaged or abnormal equipment out of service
Do not keep restarting an appliance that smells burned, trips protection, displays an electrical fault, makes new sounds, or operates abnormally. If it can be unplugged safely with dry hands and no visible outlet/cord damage, disconnect it. Otherwise leave it alone and get help.
Follow appliance instructions. HVAC, ranges, dryers, pumps, and hardwired equipment require the appropriate electrician, HVAC technician, or appliance professional.
6. Restore ordinary electronics cautiously
After the utility confirms stable service and no hazard is present, follow equipment manuals for restart. Restore critical systems in a deliberate sequence rather than energizing everything at once. Check computers, networking, alarms, refrigeration, HVAC, and smart-home controls for error states or lost settings.
A device can have hidden damage even if it powers on. Back up accessible data and monitor for heat, odor, intermittent operation, or repeat faults.
7. Contact the right party
- Utility: outage, downed line, service-voltage, or restoration issue.
- Emergency services: fire, active arcing, injury, or immediate danger.
- Licensed electrician: panel/service/SPD status, damaged outlets/wiring, repeated tripping, abnormal voltage symptoms.
- HVAC/appliance professional: equipment diagnosis after electrical safety is established.
- Insurer/agent: policy-specific notice, documentation, deductible, and claim steps.
- SPD manufacturer: status interpretation and warranty/connected-equipment process.
Ask before disposing of damaged items or authorizing non-emergency replacement if a claim inspection may be required.
8. Review the protection path after recovery
Once the immediate issue is resolved, identify how the event may have traveled:
- power service and branch circuits;
- coaxial, telephone, Ethernet, or antenna lines;
- outdoor HVAC or other equipment; and
- interconnected electronics.
Review whole-home status, point-of-use protectors, signal-path coverage, grounding/bonding concerns identified by the electrician, and documentation. Do not interpret one damaged device as proof of a specific path without professional evidence.
What not to do
- Do not touch wet or visibly damaged electrical equipment.
- Do not open the panel or SPD.
- Do not reset a breaker repeatedly.
- Do not bypass a failed protector or safety device.
- Do not claim a direct lightning strike solely from appliance damage.
- Do not discard evidence before checking warranty/insurance requirements.
- Do not assume a green SPD light clears every device.
Prepare for the next event
Keep a home electrical file with panel/SPD model, photos, electrician invoice, permit record, warranty, point-of-use device list, insurer contact, utility outage channel, and a periodic status reminder. This small record is more useful after an event than trying to reconstruct purchases under stress.
Read surge protectors and lightning for event limits and insurance coverage for surge damage for bounded claim questions.
Sources
- Electrical Safety Foundation International — Surge Protection
- Ready.gov — Power Outages
- National Weather Service — Lightning Safety
- NIST — Surges Happen
Emergency and equipment conditions vary. Follow public-safety, utility, manufacturer, insurer, and qualified-professional instructions for the actual event.