Factors such as the age of the system, the intricacy of the problem, and local labor rates affect the cost of air conditioner repair. Smaller fixes, like changing a thermostat or repairing a capacitor, might run you between $100 and $500. More involved fixes, like replacing a compressor or repairing a refrigerant leak, might cost anywhere from $500 to $2,500 or more. The total cost is influenced by elements like the hourly rates of the technician and the requirement for new parts. For precise figures, it’s best to get many quotations and speak with experts.