It’s understandable to neglect the AC during the rainy season—since you aren’t using it, you may not see a need to service it. However, performing a few essential air conditioning maintenance tasks during the colder months will ensure the system is ready to run once winter ends. Here are a few steps you can take.

How to Maintain Your AC in the Winter

1. Lubricate the Moving Parts

The air conditioner has many moving parts that require adequate lubrication to reduce wear from friction. To prevent excessive friction come spring, apply a high-quality oil to the motor shafts and bearings during the winter so that the parts are slick when you need them.

2. Clean It

air conditioning maintenanceThe AC unit’s internal parts will accumulate dust, dirt, and grime over time. To ensure optimal efficiency and performance, clean the evaporator coils, fan blades, and condenser after turning off the system for the season. If you don’t know where to locate these components or how to clean them, leave the task to a skilled air conditioning maintenance technician.

3. Clear the Drains & Lines

Debris can also accumulate in the drains and condensate lines. If left unchecked, clogs will form the next time you turn on the system. Blockages can also contribute to the growth of mold and mildew.

Locate and clear these lines every winter, so you aren’t faced with water damage or a mold problem come spring. After removing the drip pan, use a wet-dry vacuum to remove clogs from the condensate line. If mold has started growing, clean the drain and lines with a bleach solution.


If you want help tackling winter air conditioning maintenance, turn to Cool It Kauai Air Conditioning in Lihue, HI. These professionals help homeowners care for their cooling systems by performing routine inspections, tuneups, and repairs. Call (808) 315-1888 to learn more about their services or schedule an appointment.