Any air conditioning system can stop working, but the costs associated with the types vary widely. Your central air conditioner is probably one of these types:
Only heating, ventilation and air conditioning (HVAC) technicians should service your central air conditioner, regardless of type.
Hiring reliable contractors and avoiding scams is easy when you read free reviews. Be sure to follow up on the background of the company. Air conditioner equipment is expensive to buy and expensive to service, so save money by doing your homework with this list of air conditioner repair service near you.
Remember, service call charges alone can be $60 or more. For a unit needing fresh refrigerant, for example, expect to pay $160 to $400.
US Department of Energy - Weatherization Assistance Program | A/C Repair Hiring Guide | Air Conditioning Contractors of America - National Trade Association | US Department of Energy - Central Air Conditioning Information