Dirty air filters, condenser coils, or a failed fan can cause an air conditioner to overheat and draw too much electricity, potentially tripping a circuit breaker. Regularly changing the air filter every 30-60 days and keeping condenser coils clean allows the air conditioner to efficiently cool refrigerant. A lack of refrigerant due to a leak also makes the air conditioner work harder and risk tripping the circuit; a contractor should repair leaks and refill the refrigerant. Proper maintenance and repairs can prevent overheating and overdrawing of electricity that leads to tripped circuits.