The answer to 'how to maintain evaporator coil' is to regularly clean and inspect the evaporator coil. The evaporator coil is a critical component of your HVAC system that helps remove heat and humidity from your home. Proper maintenance is essential to keep it operating efficiently and prevent costly repairs.
To maintain the evaporator coil, you should clean it at least once per year, or more often if you have pets or live in a dusty environment. This involves turning off power to the unit, removing the access panel, and using a soft brush or compressed air to gently remove any dust, dirt, or debris from the coil fins. Avoid using water or harsh chemicals, as this can damage the coil. You should also check the coil for any signs of damage or leaks and have a professional HVAC technician inspect and service the unit if needed.