A small spark can sometimes occur when plugging or unplugging certain electrical devices. However, sparks coming from the surge protector itself, visible smoke, burning odors, melting plastic, or discoloration are not normal.
These signs may indicate:
- An overloaded surge protector
- A damaged or aging surge protector
- A short circuit
- Loose or damaged electrical connections
- A faulty appliance connected to the protector
- Excessive heat buildup
- An electrical circuit that is being asked to handle more load than it should
A surge protector is not a substitute for properly designed and maintained household wiring.
What Should You Do Immediately?
1. Stop Using the Surge Protector
If you see smoke, sparks, melting, or signs of burning, stop using the surge protector immediately.
Do not continue plugging appliances into it just to see if the problem goes away.
2. Disconnect Power—If It Is Safe to Do So
If you can safely unplug the surge protector without touching a damaged, melted, or energized portion of the device, disconnect it.
If there is active sparking, significant smoke, visible fire, or the device appears dangerously damaged, do not touch it. Move away from the area and call 911 if there is a fire or immediate danger.
If you are unsure whether it is safe to approach the device, leave it alone and contact a qualified electrician.
3. Don’t Pour Water on an Electrical Fire
Never use water on an electrical fire. Water can conduct electricity and increase the risk of shock.
If a small electrical fire occurs and you have an appropriate, readily accessible fire extinguisher and know how to use it safely, follow the extinguisher’s instructions. Otherwise, evacuate and call 911.
4. Check the Appliances That Were Connected
Once the situation is safe, make a note of what was plugged into the surge protector.
High-power appliances such as space heaters, portable air conditioners, refrigerators, microwaves, and other heating or motor-driven equipment may require substantial electrical power and generally should not be connected to a basic power strip or surge protector unless the manufacturer specifically permits it.
If one particular appliance appears to have caused the problem, don’t plug it back in until it has been checked.
Why Overloading a Surge Protector Is Dangerous
One common mistake is treating a surge protector like an extension of the home’s electrical system.
A surge protector does not increase the amount of electricity a circuit can safely provide. Plugging multiple high-demand devices into one protector can cause excessive current to flow through the device and its cord.
Over time, this can result in:
- Excessive heat
- Damaged insulation
- Melted plastic
- Electrical arcing
- Circuit breaker trips
- Fire hazards
Even if the circuit breaker doesn’t trip, a damaged power strip or surge protector should never be considered safe simply because it still works.
Don’t Ignore a Burning Smell
A burning or electrical odor near an outlet, surge protector, appliance, or electrical panel deserves attention.
Sometimes the smell comes from a failing power strip or appliance. In other cases, it could be a warning sign of a loose connection or overheating wiring.
Watch for other warning signs, including:
- Brown or black marks around an outlet
- Warm or hot outlets
- Flickering lights
- Buzzing or crackling sounds
- Frequently tripping breakers
- Melted plugs or electrical cords
- Discolored receptacles
- A burning-plastic smell
If you notice multiple warning signs, have a licensed electrician inspect the electrical system.
When Should a Connecticut Homeowner Call an Electrician?
Call a qualified electrician if:
- An outlet is hot, discolored, or damaged
- A surge protector has melted or burned
- You see recurring sparks or arcing
- Circuit breakers repeatedly trip
- You smell burning near an outlet or electrical panel
- You aren’t sure what caused the surge protector to fail
- You suspect an overloaded circuit
- You notice damaged wiring or electrical cords
Replacing the surge protector may solve the immediate problem, but it doesn’t necessarily solve the underlying electrical issue.
An electrician can determine whether the problem is isolated to the surge protector or whether the outlet, circuit, appliance, or wiring needs attention. How Can You Prevent the Problem?
A few simple habits can reduce the risk of electrical problems:
Avoid overloading power strips. Check the manufacturer’s rating and the electrical requirements of the devices you’re connecting.
Use the right device for the application. Power strips, extension cords, and surge protectors are not interchangeable with permanent household wiring.
Replace damaged equipment. If a surge protector has melted, cracked, burned, or shows other signs of damage, replace it.
Don’t use damaged cords. Frayed or damaged electrical cords can create shock and fire hazards.
Keep electrical equipment away from moisture. Water and electricity are a dangerous combination.
Have persistent problems investigated. Repeated breaker trips, flickering lights, or overheating outlets should not simply be reset and ignored.
A Surge Protector Should Protect Your Home—Not Become a Warning Sign
Seeing sparks or smoke from a surge protector is not something to troubleshoot casually. Disconnect it only if it is safe to do so, stay away from active electrical hazards, and have the problem professionally evaluated when necessary.
Your surge protector may have failed because of the protector itself, an overloaded circuit, a faulty appliance, or another electrical issue. Finding the cause is just as important as replacing the damaged device.
If you’re a Connecticut homeowner experiencing electrical problems, Sunderland Electric can help identify potential electrical hazards and determine the right solution for your home. When something doesn’t look or smell right, don’t wait for a small electrical problem to become a serious one.