Between maintenance checks by an HVAC technician (such as one from Advanced Heating & Cooling), you might be called on to perform basic troubleshooting of problems with your air conditioning system. Many of the problems you can face are easily handled with a little prep. Here are some of the most common problems and what you need to do to resolve them. 

System Is Not Turning On

In most instances, when the air conditioning system is not working at all, the problem is usually with the circuit breaker. The breaker can occasionally trip. Check the electrical panel in your home to see if the breaker is tripped. If so, the one for the air conditioning system will be switched to "Off." Flip it to the "On" position and restart your system.

If that does not resolve the issue, the problem might be the capacitor. At this point, contact your HVAC technician to have the appliance professionally serviced.

Hot Air Is Blowing From the Vents

When there is hot air coming from the vents of your air conditioning system, it is possible that the air conditioning system is in need of more refrigerant. In most instances, when the refrigerant is low, it is a sign that there is a leak in the system. Although the materials to refill the refrigerant are available to purchase in some areas, it is important that you rely on a professional to perform the repair. The air conditioner could be damaged if the refrigerant is incorrectly filled. The HVAC technician can also test your air conditioner to determine if there is a leak.

Another cause for hot air blowing from the vents is the exterior emergency shutoff switch is flipped to "Off." Check the breaker box that is located next to the outside unit to locate the switch. If it is off, flip the switch to the "On" position.

Cooling Effect Is Low

If the air conditioner is blowing cool air, but it is inadequate, the problem might be related to the cleanliness of your system.  When system components, such as the blower wheel and evaporator coil, are dirty, the cool air is obstructed.

To clean the coils, remove the access panel from the system and use a no-rinse coil cleaner. You can find the cleaner at your local home improvement store. Simply spray the cleaner on the coil and wait the time recommended in the instructions. Once the spray has cleaned the area, you can close up the access panel.

If you are experiencing any other problems with your system or the troubleshooting has not resolved your original issue, contact a professional.