Visual Inspection: Check the unit for any visible damage, wear, or rust.
Check for Leaks: Inspect the system for refrigerant leaks.
Inspect Ductwork: Ensure no blockages, leaks, or damage in the ductwork.
Air Filters: Clean or replace air filters to ensure proper airflow and air quality.
Coils (Evaporator & Condenser): Clean both the evaporator coil (inside) and condenser coil (outside) to prevent dirt buildup, which can reduce efficiency.
Drain Line: Clear the condensate drain line to prevent water buildup and potential leaks.
Blower Wheel and Fan: Clean the blower wheel and fan blades to ensure they are free of dust and debris.
Check Refrigerant Level: Ensure the refrigerant level is correct (too low or high levels can affect performance).
Refrigerant Recharge: If necessary, recharge refrigerant after addressing leaks or low levels.
Thermostat Calibration: Ensure the thermostat is functioning correctly and properly calibrated.
Inspect Capacitors and Contacts: Check capacitors, relays, and contactors for wear or malfunction.
Test Circuit Board: Inspect the circuit board for proper operation and ensure no shorts or faults.
Inspect Electrical Connections: Tighten any loose connections and ensure no signs of electrical wear.
Start-Up Test: Test the unit to ensure it powers up and cycles properly.
Temperature Differential Test: Measure the temperature difference between the intake and output air to determine if the unit is cooling properly.
Pressure Test: Measure the pressure of the refrigerant to ensure the system is operating within the manufacturer’s specifications.
Insulate Ducts: Check insulation around the ductwork to ensure there are no areas of heat loss.
Insulate Refrigerant Lines: Ensure refrigerant lines are properly insulated to minimize energy loss.
Check Compressor: Ensure the compressor is working efficiently, without unusual noise or overheating.
Inspect Fan Motors: Check the indoor and outdoor fan motors for proper operation, lubrication, and wear.
Check System Settings: Ensure all settings, like temperature and mode (cooling, heating, etc.), are set properly.
Adjust Fan Speed: Make sure the fan speeds are appropriately adjusted for optimal airflow.
Check for Refrigerant Leaks: Detect refrigerant leaks using electronic leak detectors or UV dye.
Seal Leaks: Repair any detected refrigerant or air leaks.
Seasonal Checkups: Schedule seasonal inspections to ensure the air conditioner works efficiently, especially before the summer or winter season.
Lubricate Moving Parts: Lubricate moving parts like the fan and blower to reduce friction and prevent wear.
Upgrade to Programmable Thermostat: Recommend and install energy-efficient or programmable thermostats to improve energy savings.
Add Zone Control: Install zoning systems for better control over air conditioning in different areas of the house.
Clean the Area Around the Unit: Remove any debris or dirt around the indoor and outdoor units.
Test System Post-Service: Perform a final test to ensure the system is functioning properly after maintenance or repair.
These tasks can help your air conditioning system run efficiently, prevent breakdowns, and extend its lifespan. Regular maintenance is recommended to keep your system in good working order.