Troubleshooting Your AC: Practical Steps for Homeowners

Before diving into more complex issues, start with these simple checks:

Thermostat Setting: Ensure your thermostat is set to 'Cool' and the desired temperature is lower than the current room temperature. Check the fan setting; it should be on 'Auto' for the most efficient cooling. 

Power Supply: Verify that the AC unit is receiving power. Check the circuit breaker or fuse box for any tripped breakers or blown fuses related to the AC.

Air Filter Inspect the air filter for dirt and debris. Replace if necessary. A clogged filter restricts airflow and can cause the AC to work harder and cool less effectively.

Blocked Vents Ensure that air vents are not blocked by furniture, rugs, or curtains. Blocked vents restrict airflow, reducing cooling in certain areas.

Outside Unit Check the outside AC unit for any obstructions, such as plants or debris. Make sure the fan is running and that the unit is clean.

Refrigerant Levels Low refrigerant levels can significantly reduce cooling performance. Look for signs of leaks, such as ice buildup on the refrigerant lines. This is a job for a professional.

Clearing A Clogged Drain Line:

• Open the T-Valve located by your air handler, where the float switch is situated.
• Check for water in the valve; if it is filled, the float switch has turned off your system.
• Use your DryVac to remove any water from the T-Valve.
• Turn off your thermostat.
• Pour one cup of distilled white vinegar into the cleanout of the drain line and let it sit for 30 minutes.
• Important: Do not turn your AC back on during this time.
• After 30 minutes, place a pan underneath the drain line.
• Using a funnel, slowly pour approximately half a gallon of hot tap water through the cleanout.
• Check the pan to ensure the drain is functioning properly and remove any debris.
• You may need to run another half-gallon of hot tap water through to clear all debris.
• Finally, turn your thermostat back on, and your AC should resume cooling effectively.

If your AC is still not running properly after completing these simple steps, call Four Seasons Air Conditioning for all your repair, maintenance and installation needs. 941-548-4216 24/7/365 Emergency Service – We Always Answer, Never Voicemail.