Why breakers trip
Possible causes include overload, short circuit, ground fault, connected equipment trouble, a loose connection or a breaker issue. The pattern and circuit served help guide testing.
Warning signs
Call promptly for a breaker or panel that is hot, damaged, buzzing, arcing, corroded or producing a burning odour.
- Trips immediately after reset
- Trips when specific equipment starts
- Will not reset
- Heat or discolouration
- Loose or physically damaged handle
What not to do
Do not install a higher-rated breaker, hold a breaker on or repeatedly reset it. The electrician must confirm conductor size, load, equipment and panel condition before selecting a repair.
Practical takeaway: If there is smoke, fire or immediate danger, keep clear and call 911 first.
Frequently asked questions
Questions property decision-makers ask
Does a tripping breaker always need replacement?
No. The breaker may be responding correctly to a problem elsewhere on the circuit.
Can I replace a breaker with a larger one?
Not without a qualified assessment. Breaker rating must protect the connected conductors and equipment.
Current authoritative resources
Requirements and programs can change. Confirm current information directly: