Maintenance of the AC Unit

1. Coil Cleaning:
   • Frequency: Annually.
   • Steps:
     • Turn off the unit.
     • Clean the evaporator coil inside the unit with a coil cleaner.
     • Clean the condenser coil outside the unit, using a coil cleaner or a garden hose to remove debris.

2. Condensate Drain Cleaning:

   • Frequency: Annually.
   • Steps:
     • Locate the condensate drain line.
     • Flush the line with a mixture of bleach and water (1:1 ratio) to prevent algae and mold buildup.
     • Ensure the drain is clear and flowing properly.

3. Fan and Blower Maintenance:

   • Frequency: Annually.
   • Steps:
     • Turn off the unit.
     • Clean the fan blades and blower assembly.
     • Lubricate the motor bearings if they are not sealed.

Seasonal Maintenance

1. Pre-Summer Checkup:

   • Inspect the refrigerant level and recharge if necessary.
   • Check and calibrate the thermostat.
   • Inspect the electrical connections and tighten any loose connections.
   • Ensure the outdoor unit is clear of debris and vegetation.

2. Post-Summer Checkup:

   • Clean the outdoor unit and remove any accumulated debris.
   • Inspect the unit for any signs of wear or damage.
   • Test the heating system if the unit is a heat pump.

Advanced Maintenance Tasks

1. Refrigerant Level Check:

   • Frequency: Annually.
   • Steps:
     • Have a professional check the refrigerant levels.
     • Recharge the refrigerant if levels are low.
     • Inspect for refrigerant leaks and repair as necessary.

2. Electrical Components Inspection:

   • Frequency: Annually.
   • Steps:
     • Inspect capacitors, contactors, and wiring.
     • Replace any worn or damaged components.

3. Ductwork Inspection and Cleaning:

   • Frequency: Every 2-5 years.
   • Steps:
     • Inspect ductwork for leaks and damage.
     • Seal any leaks with duct mastic or metal tape.
     • Clean the ducts to remove dust and debris.