Luxaire A/C Troubleshooting Flowchart

Is your air conditioner... The problem might be your... What's wrong? How you can fix it
Thermostat Batteries may be dead, or the thermostat may be switched off. Change the batteries and check that the thermostat is set to cool.
Circuit breaker The breaker may have been switched off. Turn the switch to the “on” position.
Not blowing cold air? Air filter The filter may be clogged or full of debris. If you haven’t changed your air filter in a while or you’ve been running your A/C more than normal, it’s probably due for a change.
Outside unit The air conditioning unit outside your home may not be able to vent the hot air from your home properly. Check to make sure your unit has at least 2 feet of clear space. Remove vegetation and leaves from in, on and around your unit.
Refrigerant If the refrigerant is leaking, you won’t be getting cool air. Call an HVAC expert to fix the issue, since it requires trained expertise.
Insulation Old homes may have insulation gaps that let the cool air leak out. Windows are common culprits, consider replacing or using blackout curtains.
Dripping water? Condensate line The PVC pipe that leaves the A/C unit may be clogged. Use compressed air to clean it out and allow normal function.
Making odd sounds? Blower motor or belt Squealing may indicate that there is an issue with the belt or blower motor. Adding lubricant to the oil port can help the parts run smoothly.
Fan blades If the sound is more like a slapping noise, the problem may be with the blades of the fan. Something may be stuck in the blades. Turn off power to the unit to check if this is the cause and remove it.