The cost to repair an air conditioner typically ranges from $150 to $600, depending on the nature of the problem. Minor repairs, such as replacing a fuse or circuit breaker, may cost around $150 to $290. More extensive repairs, like fixing refrigerant leaks or replacing a compressor, can range from $400 to $1,200. Labor costs, part prices, and service call fees all contribute to the total expense. For a precise estimate, it's best to consult a local HVAC technician.