Safety first! Before you start any maintenance work, turn off the power to your AC unit. This can usually be done by switching off the breaker in your home's electrical panel.
- Clean or Replace the Air Filters
One of the simplest yet most effective ways to maintain your AC is by cleaning or replacing the air filters. Dirty filters restrict airflow, making your unit work harder and reducing efficiency. If this task is difficult for you, you can always ask for help from the
AC maintenance provider.
Locate the filter: Most filters are found in the return air duct or near the blower compartment.
Check the condition: If the filter looks dirty, it needs to be cleaned or replaced. For disposable filters, simply replace them every 1-3 months. For reusable filters, clean them with a vacuum or wash them with water and let them dry completely before reinstalling.
Ensure your thermostat is working correctly. Consider upgrading to a programmable or smart thermostat for better control and energy savings.
Check the settings: Make sure the thermostat is set to the correct temperature.
Test the functionality: Switch between heating and cooling modes to ensure the system responds correctly.
Both the evaporator and condenser coils need to be clean for the AC to function efficiently.
Evaporator coils: Located inside the indoor unit, these coils can be cleaned with a soft brush or a no-rinse coil cleaner.
Condenser coils: These are found in the outdoor unit. Remove any debris around the unit and use a hose to gently wash the coils. Avoid using high-pressure water as it can damage the fins.
The aluminum fins on the coils can bend and block airflow. Use a fin comb to gently straighten any bent fins.
- Clear the Condensate Drain
The condensate drain allows moisture to escape from the system. If it gets clogged, it can cause water damage and increase humidity levels in your home.
Locate the drain line: Usually near the indoor unit.
Clear clogs: Use a wet/dry vacuum to remove any blockages. You can also flush the line with a mixture of water and vinegar.
Leaky ducts can cause your system to lose up to 30% of its efficiency.
Check for visible leaks: Inspect the ductwork for any holes or gaps.
Seal the leaks: Use duct tape or mastic sealant to fix any leaks you find.
- Check the Refrigerant Level
Low refrigerant levels can indicate a leak and affect your system's performance.
Visual inspection: Look for any signs of leaks around the refrigerant lines.
Professional help: If you suspect a refrigerant leak, it's best to call a professional as handling refrigerants requires special equipment and knowledge.
- Clear the Area Around the Outdoor Unit
Ensure there's at least two feet of clearance around the outdoor unit to allow for proper airflow.
Remove debris: Clear away leaves, grass, and other debris from around the unit.
Trim vegetation: Keep shrubs and plants trimmed back.
- Schedule Professional Maintenance
While these home AC service tips are great for regular upkeep, it's important to have your AC unit professionally inspected and serviced at least once a year.
Annual tune-up: A professional can perform a more thorough inspection and address any issues you might have missed.
Pre-season check:
Schedule maintenance before the peak cooling or heating season to ensure your system is ready to perform.