By Alexander Georges · Last updated April 26, 2026

Electrical Repair Checklist

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Diagnose

Identify the electrical symptom

Is it a dead outlet, tripped breaker, flickering light, buzzing sound, or burning smell? Pinpointing the problem determines your next step.

Check if the problem is isolated or widespread

One dead outlet is different from half the house going dark. Test other outlets and lights on the same circuit to map the scope.

Inspect the electrical panel

Open the panel door and look for tripped breakers (handle in the middle position), burnt smell, scorch marks, or corrosion.

Test outlets with a receptacle tester

A $15 plug-in tester instantly tells you if an outlet is wired correctly, has an open ground, or has reversed polarity.

Check for GFCI or AFCI trips

A dead outlet may be downstream of a tripped GFCI in the bathroom, kitchen, or garage. Press the RESET button on all GFCI outlets.

Breakers

Reset a tripped circuit breaker

Flip the breaker fully OFF, then back ON. If it trips again immediately, you have a short circuit or overloaded circuit, do not keep resetting.

Identify an overloaded circuit

If a breaker trips when you plug in a high-draw appliance (space heater, hair dryer, microwave), the circuit is overloaded. Redistribute loads.

Understand your breaker panel layout

Map which breaker controls which rooms and outlets. Label every breaker clearly, this saves critical time during emergencies.

Check for a bad breaker

A breaker that trips with nothing plugged in, feels hot, or won't stay on may be failing. Breakers wear out after 25-30 years.

Outlets

Fix a dead outlet

Check the breaker, test for GFCI trips upstream, and verify wiring connections. A dead outlet is usually a loose wire or tripped GFCI.

Replace a damaged outlet

Cracked, discolored, or warm outlets are fire hazards. Turn off the breaker, verify power is off with a tester, then swap the receptacle.

Fix a loose or wobbly outlet

An outlet that moves when you plug something in has loose mounting screws or a broken box. Tighten the screws or install outlet shims.

Replace a faulty light switch

Switches that buzz, spark, feel warm, or don't toggle cleanly should be replaced. A standard switch is a $3 part and 15-minute job.

Add a GFCI outlet

Kitchens, bathrooms, garages, and outdoor areas require GFCI protection. Replace a standard outlet with a GFCI to add protection for the whole circuit downstream.

Lighting

Fix a flickering light

A single flickering bulb is usually a loose bulb or bad connection. Flickering throughout the house could indicate a loose neutral wire, call a pro.

Replace a light fixture

Turn off the breaker, remove the old fixture, connect wires (black to black, white to white, green/bare to ground), and mount the new one.

Fix a light that won't turn on

Check the bulb, the switch, the breaker, and the fixture wiring in that order. Most dead lights are just a burnt-out bulb or tripped breaker.

Troubleshoot a dimmer switch

LED bulbs need LED-compatible dimmers. Incompatible dimmers cause flickering, buzzing, and limited dimming range. Check bulb/dimmer compatibility.

Safety

Test and replace smoke detectors

Press the test button monthly. Replace batteries yearly and the entire unit every 10 years. Check the manufacture date on the back.

Test and replace carbon monoxide detectors

CO detectors expire after 5-7 years. Install one on every level and near sleeping areas. Test monthly with the test button.

Test GFCI outlets and breakers

Press TEST, the outlet should go dead. Press RESET to restore. Do this monthly. A GFCI that doesn't trip on test needs immediate replacement.

Check for proper grounding

Use a receptacle tester to verify all outlets show correct wiring. Ungrounded outlets are a shock and fire hazard, especially with electronics.

Wiring

Identify aluminum wiring hazards

Homes built 1965-1973 may have aluminum wiring, which expands and loosens connections over time. A licensed electrician can install COPALUM or AlumiConn connectors.

Recognize signs of electrical overload

Warm outlet covers, burning smell, discolored plates, frequently tripping breakers, and buzzing sounds all indicate potential overload or wiring issues.

Check for backstabbed connections

Outlets wired by pushing wires into holes (backstabbing) instead of wrapping around screws are prone to failure. Re-wire to screw terminals for reliability.

Address a buzzing or humming electrical panel

A slight hum is normal for large breakers. Loud buzzing indicates a loose connection, failing breaker, or overloaded circuit. Call an electrician.

Call a Pro

Know when to call an electrician

Any work inside the panel, new circuits, aluminum wiring, persistent burning smells, and frequent breaker trips require a licensed electrician.

Get multiple electrical quotes

For non-emergency work, get 2-3 quotes. Electricians charge $50-100/hour. Ask for flat-rate pricing on defined jobs like outlet or panel upgrades.

Decide: repair or upgrade

If your panel is under 100 amps, has fuses instead of breakers, or your home has knob-and-tube or aluminum wiring, a full upgrade is usually the right call.

Prevent future electrical problems

Don't overload circuits, use surge protectors, replace damaged cords, and schedule a professional inspection every 5-10 years.

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