AC Tripping Breaker
Quick Answer
An AC that repeatedly trips the breaker is drawing too much current, which signals a serious problem. Common causes include dirty filters/coils, a failing capacitor, or compressor issues. Don't keep resetting the breaker - this can cause fire or equipment damage.
Safe Checks You Can Do
- 1Stop resetting repeatedly - If the breaker trips twice, don't keep resetting. This can cause fire or damage.
- 2Check the air filter - A severely dirty filter forces the blower motor to overwork and draw excess current.
- 3Inspect the outdoor unit - Clear away debris and check if the condenser coils are dirty or clogged.
- 4Wait before resetting - If you do reset, wait at least 30 minutes for pressures to equalize first.
Likely Causes
- Dirty air filter or condenser coils
Restricted airflow makes motors work harder and draw more current, overloading the circuit.
- Failing capacitor
A weak capacitor can't start the compressor properly, causing it to draw excessive amps.
- Compressor issues
A hard-starting or grounded compressor draws too much current at startup or continuously.
- Electrical short or damaged wiring
Frayed wires, loose connections, or shorts cause immediate breaker trips. Fire hazard.
- Undersized breaker or wiring
If the circuit wasn't properly sized for the AC, it may trip under normal load.
When to Call a Pro
- The breaker trips more than twice (this is a safety issue)
- You smell burning or see smoke
- The breaker or electrical panel is hot to touch
- The AC worked fine until recently
- A new filter and clean coils don't solve the problem