Breaker Keeps Tripping? Causes and When to Call
Short answerA breaker that keeps tripping is usually overloaded, is protecting against a faulty appliance, or is reacting to a wiring problem. Unplug things on that circuit, reset it once, and plug items back in one at a time. If it trips with nothing plugged in, stop resetting it and call an electrician.
Safety first
- Do not keep resetting a breaker that trips again right away. It is doing its job.
- Never replace a breaker or fuse with a higher rated one. That lets wires overheat and can start a fire.
- Do not remove the panel cover. If you smell burning, see sparks, or an outlet or panel is hot or buzzing, leave that circuit off and call an electrician now. If you see smoke or fire, get out and call 911.
Likely causes
| Cause | How to tell | What fixes it |
|---|---|---|
| Too much on one circuit | It trips when a heater, hair dryer, microwave or vacuum runs with other things on. | Move a heavy appliance to another circuit. CPSC's guide says most 15 amp circuits can carry up to 1500 watts and some 20 amp kitchen circuits up to 2000 watts. |
| Faulty appliance | It trips every time one appliance is plugged in or turned on. | Stop using it, and have it repaired or replaced. |
| Problem at one outlet or switch | It trips when you use a certain outlet, switch or light. | Stop using that device and call an electrician. |
| Wiring fault or worn breaker | It trips with everything unplugged, or at random. | An electrician tests the circuit and the breaker. |
Why this is a job for a professional
- It trips with nothing plugged in, or trips again right after a reset.
- You notice warm or discolored outlets, a burning or rubbery smell, flickering lights, sparks or buzzing.
- Your panel has fuses or breakers rated higher than the wires they protect.
- Ask: which circuit is the problem, and what did you measure? Is this a bad breaker, a wiring fault or an overload? Do I really need a panel upgrade, or would a new circuit solve it? Will you pull a permit?
What it costs to have fixed
Electrical Panel Upgrade is estimated at $1,000 to $3,150 nationally. See your state
Common questions
Why does my breaker keep tripping in one room?
That room's circuit is probably overloaded, especially with a space heater, or something on it is faulty. Unplug everything, reset it once, then add items back one at a time and see which one trips it.
Why does my breaker keep tripping right after I reset it?
An instant trip with everything unplugged may point to a wiring fault or a failed breaker. Leave it off and call an electrician.
How do I reset a tripped breaker?
Some handles swing fully to off, and those just go back to on. Others stop in a middle position, and those must go to off first, then on.
Do I need a panel upgrade if my breaker keeps tripping?
Not always. A single overloaded circuit or a bad appliance can also cause this. Ask the electrician to show you the load and test results before you agree to a new panel.
What is the 80% rule for breakers?
It limits how much a standard breaker should carry for long stretches. Schneider Electric explains that a standard-rated breaker can be applied at only 80% of its rating for continuous loads, meaning 3 hours or more under the National Electrical Code, though it can run at 100% for shorter periods. Source
Can I just flip a breaker back on?
Only if you know the circuit was simply overloaded. University of Washington campus safety guidance says it is safe to reset a breaker only once that has been determined, that a short circuit or ground fault needs a qualified electrician, and that repeatedly resetting a breaker could cause an arc flash or fire. Source
How do I prevent breakers from tripping?
Avoid running high-draw appliances on the same circuit. University of Washington campus safety guidance names vacuum cleaners, refrigerators, hot plates and irons as examples. It also lists warning signs of an overload: lights that dim, buzzing outlets or switches, and covers that feel warm. Source
Related repairs
- Ceiling Fan Not Working? Safe Checks Before You Call
- GFCI Won't Reset? Why It Happens and What to Do
- Lights Flickering in House? Causes and What to Do
- Outlet Not Working? What to Check Before You Call
Last verified 2026-11-01
Sources
- CPSC: Guide to Home Wiring Hazards — Overloads, adding up watts on a circuit (1500 on 15 amp, 2000 on 20 amp), one appliance repeatedly tripping, a particular outlet tripping, never using a higher rated breaker, and how to reset the two breaker types
- NFPA: Electrical Safety Checklist — Call a qualified electrician for frequent tripping, warm outlets or burning smells; one heat-producing appliance per outlet
- CPSC: May Is National Electrical Safety Month — Breakers needing frequent resetting as a warning sign, and a licensed electrician check
General information, not professional advice. Conditions, codes and prices vary. Turn off power, gas or water before any work, and hire a licensed professional when in doubt. Cost figures are our estimates, not quotes.