Why does the circuit breaker keep tripping on the A/C unit?

The purpose of a circuit breaker is to protect the equipment, including the wiring that may cause overheating and fires. The first thing to do is check the motor to see any visible smoke or feel for any hot spots. If everything seems normal – reset the circuit breaker. Turn it to the “off” position if it isn’t there already, then back to the “on” position.

If the breaker trips a second time, then it means there’s an overload condition and you should call your service company immediately. The breaker is tripping for a reason – a locked motor, obstructions, faulty wiring or insulation.

One very common cause for breakers to trip is loose electrical connections. Expansion and contraction of the wire lugs on a breaker cause the connections to loosen over time. Don’t tighten the connections with the power on – it’s hazardous to your health.

It’s best to call us and get the problem corrected by a professional.