Dimming or Flickering Lights
Dimming lights are another common indication of circuit overload or improper wiring. Flickering lights can result from damaged fixture wiring, a problem with the switch or a fault somewhere. In older homes with 60-amp service panels, underpowered fixtures and appliances may indicate that the household system is being overtaxed and should be upgraded.
Outlets and switches are never supposed to buzz, and their faces or coverplates should never be hot to the touch. These are clear warning signs and should be inspected immediately. It is normal for most dimmer switches and coverplates to be warm, but they should not be hot.
“Live” Appliances
If touching an appliance, cord or plug gives you a zing or even a mild buzzing sensation, unplug it and have it checked out. Same goes with buzzing light fixtures.
Smell Something Burning?
Even the faintest scent of overheated plastic can be a big warning sign. If you can’t find the source of a burning smell, whether it’s in a room or next to an appliance, assume that wiring is a possible culprit.
Damaged or Worn Insulation
Without completely intact insulation, electrical wiring is extremely dangerous. Frayed, cut or burned insulation on any wire is a serious hazard. Also, cable splices should always occur inside an approved junction box.
Funny Wiring
Stories of DIYers using extension cords for circuit wiring are not unheard of. It happens, and it’s the equivalent of using a garden hose for water-supply pipes. If you find inappropriate wiring anywhere in your house, assume the worst; it’s time for a complete inspection.
Overrated Circuit
If you’re in your service panel and see a 20-amp (or larger) breaker or fuse on a standard lighting/receptacle circuit, it could be that someone has “fixed” a trip-prone circuit by installing a larger breaker than the circuit wiring is designed for. Standard circuits are 15 amps and should have a 15-amp breaker; a 20-amp breaker will allow overloads without tripping, heating the circuit wires and possibly causing a fire. 20-amp receptacle circuits are common in kitchens and garages, while 15 amps is standard for most other rooms.
Inspection is the Best Defense
The U. S. Consumer Product Safety Commission recommends an electrical inspection of your home every 10 to 40 years, if you’ve added substantial new loads (such as high-wattage appliances) or if you detect any warning signs of wiring problems. Call AMPT Electric for professional, licensed and insured electrical service you can trust.