Tips
Troubleshooting Tips
Check disconnect switches (indoor and outdoor if you have a split system). Make sure that circuit breakers are ON or that fuses have not blown.
Check for sufficient airflow. Make sure air filters are clean and that supply-air and return-air grilles are open and unobstructed.
Check the settings on your thermostat. If you want cooling, make sure the temperature control selector is set below room temperature and the SYSTEM switch is on the COOL or AUTO position. If you want heat, make sure the temperature control selector is set above room temperature and the SYSTEM switch is at HEAT or AUTO. The FAN switch should be set at ON for continuous blower operation or AUTO if you want the blower to function only while the unit is operating.
Air Conditioning Tips
Air filters MUST be clean. They should be located near the return air duct adjacent to the air handler or in a return air grill. Check your air filter every 30 to 90 days to make sure it is clean. Depending of the house (if you have animals) you may need to clean the air filter more often.
Flip the switch on the thermostat for the fan setting to FAN ON, not AUTO. This will run the indoor fan nonstop. The outside A/C unit will still cycle with a call for cooling from the thermostat. The constant air moving will keep you cooler. You can probably keep the thermostat a degree or two higher then normal and still feel comfortable. You will also maintain a more even temperature between upstairs and downstairs. This will SAVE you MONEY because the outdoor condenser will not come on as much!
Make sure that you wash the outside condenser coil once a year. If it's dirty, the A/C will run hot and inefficient. A sign of the coil being dirty is the small exposed copper (pipe) (tubing) line, usually 3/8" O/D connecting the inside unit with the outside unit will be HOT to the touch.
