Skip to main content
True Trade Path

Diagnostic guide

Breaker Won't Reset

A circuit breaker that trips and will not stay on — the circuit has a fault that must be found before you reset again.

System
Electrical
Causes covered
7
You can check
2 without a technician

Stop and read this first

  • Do not reset a breaker more than twice. Repeated resetting of a faulted circuit causes fires.
  • Never replace a breaker with a higher amperage rating — the wire is sized for the original breaker.
  • A buzzing breaker, warm panel cover, or burning smell means shut off the main and call an electrician immediately.
  • Never bypass, tape, or wedge a breaker closed.

Work through these in order

Ordered from most to least likely. Working top down means you rule out the cheap, common causes before paying anyone to look at the expensive, rare ones.

  1. Faulty appliance on the circuit

    CommonYou can check
    How to check
    Breaker tripped when a specific device was running. Unplug everything on the circuit and try resetting.
    The fix
    Plug devices back one at a time to identify the culprit. Repair or replace the faulty appliance.

  2. Short circuit in wiring

    CommonNeeds a pro
    How to check
    Breaker trips instantly on reset with nothing plugged in. May hear a snap or pop.
    The fix
    Leave the breaker off and call an electrician. A short in concealed wiring must be located and repaired ($200 to $800).

  3. Ground fault on a GFCI-protected circuit

    CommonYou can check
    How to check
    Circuit serves kitchen, bathroom, garage, or exterior outlets. Moisture may be present.
    The fix
    Dry all outlets and reset. If the GFCI breaker or outlet will not reset, an electrician traces the ground fault.

  4. Failed breaker

    PossibleNeeds a pro
    How to check
    Breaker handle is loose, wobbly, or feels different from others. Breaker trips at low load.
    The fix
    An electrician replaces the breaker ($150 to $300). Never substitute a different amperage rating.

  5. Arc fault detected by AFCI breaker

    PossibleNeeds a pro
    How to check
    Bedroom or living area circuit. AFCI breaker trips with nothing obvious plugged in.
    The fix
    An electrician locates the arcing connection — usually a loose wire at a switch, outlet, or light fixture.

  6. Damaged wire from renovation or pest

    PossibleNeeds a pro
    How to check
    Problem started after construction, drilling, or signs of rodent activity near wiring.
    The fix
    An electrician locates and repairs the damaged section. Rodent-damaged wiring should be inspected throughout the run.

  7. Defective panel (Federal Pacific or Zinsco)

    UncommonNeeds a pro
    How to check
    Panel label reads Federal Pacific or Zinsco. Breakers fail to trip properly or will not reset reliably.
    The fix
    Replace the panel ($2,000 to $4,500). These panels have documented failure-to-trip histories.

Once you know what it is

Step one

Know what it should cost

Get the range before you call, so the first number you hear is not the only number you have.

Step two

Decide repair or replace

On equipment near end of life, the repair is usually the first of several.

Step three

Check the quote

Compare against the typical range and confirm the terms before you sign.

Electrical Panel Upgrade cost guideRepair or replace calculatorEstimate repair costAnalyze a quote

What the fix costs

Tools for this decision

Other symptoms