Why Does My Breaker Keep Tripping?

A circuit breaker tripping once is doing its job. A circuit breaker tripping repeatedly is telling you something. Here are the five most common reasons and what to do about each one.

1. The circuit is overloaded

This is the most common cause. You have too many things drawing power on the same circuit. A standard household circuit handles 15 or 20 amps. A space heater alone pulls 12.5 amps. Add a hair dryer and you're past the limit.

What to do: Unplug some devices from that circuit. Spread high-draw appliances across different circuits. If you keep running into this, the house may need additional circuits added to the panel.

2. A short circuit

A short circuit happens when a hot wire touches a neutral wire or a ground wire inside a junction box, outlet, or appliance. This creates a sudden spike in current that trips the breaker immediately.

Signs: The breaker trips the instant you flip it back on, or the moment you plug in a specific appliance. You might see a small spark or smell something burning at an outlet.

What to do: Stop resetting the breaker. If the trip happens only when you plug in a specific device, the problem is in the device, not the wiring. Unplug it and try again. If the breaker trips with nothing plugged in, the problem is in the wiring itself. Call an electrician.

3. A ground fault

Similar to a short circuit, but instead of hot touching neutral, the hot wire touches the metal box or a ground wire. Ground faults are especially dangerous in wet areas: bathrooms, kitchens, garages, and outdoors. That's why code requires GFCI protection in those locations.

What to do: If a GFCI outlet keeps tripping, it's detecting a ground fault somewhere downstream. Don't tape the reset button down (yes, people do this). The GFCI is protecting you from electrocution. Call an electrician to find the fault.

4. The breaker itself is failing

Breakers wear out. After thousands of cycles and decades of thermal stress, the internal mechanism weakens. A failing breaker trips at lower and lower current levels, or trips randomly even when the circuit isn't loaded.

Signs: The breaker feels loose in the panel. It trips on a circuit that hasn't changed in years. It won't stay in the ON position even with nothing plugged in on that circuit.

What to do: The breaker needs to be replaced. This is a panel-level job for a licensed electrician. The breaker must match the panel manufacturer and the wire size.

5. An arc fault

Arc faults happen when damaged or deteriorated wiring creates small electrical arcs, like tiny sparks inside the wall. Modern code requires AFCI breakers in bedrooms and living areas specifically to catch these. If an AFCI breaker keeps tripping, it's detecting arcing somewhere in the circuit.

What to do: Don't replace the AFCI breaker with a standard breaker to "fix" the tripping. The arc fault is real. An electrician needs to find where the arcing is happening, usually at a loose connection, damaged wire, or deteriorated insulation.

When to stop resetting and call

If a breaker trips more than twice in a row, stop. Repeated resetting generates heat in the breaker and the wiring. If you smell burning, see discoloration on the breaker or panel, or the breaker is warm to the touch, that's an emergency. Call (405) 436-4776. We answer 24/7, and we'll diagnose the problem with up front pricing before any work begins.