Ductless Mini-Split Maintenance Checklist

When you invested in a ductless mini-split, you may have been sold on its energy efficiency, aesthetics, or environmental friendliness. There are many good reasons to recommend these systems. To continue enjoying the array of benefits the system offers, ductless mini-split maintenance is critical.

More versatile and less expensive to run than conventional central air, a mini-split may require more upkeep to keep it working its best. Our ductless mini-split maintenance checklist will help you preserve the life of your equipment and get the most out of it.

The Importance of Regular Ductless Mini-Split Maintenance

Routine ductless mini-split maintenance is crucial to the efficient functioning of your equipment. As the machinery heats up and cools over and over again, gaskets become worn, seals may unseat, and moving parts require lubrication. Particulates and debris build-up, impeding airflow and making the system work harder.

Learning how to maintain a ductless mini-split system and providing regular care saves you money while improving performance. Routine maintenance keeps your system running efficiently, saving you up to 15% on your energy bills. Catch minor issues during routine service maintenance before they cause bigger, more costly breakdowns. Not only does it postpone expensive mini-split A/C repairs, but it extends the serviceable life of your system.

Comprehensive Ductless Mini-Split Maintenance Checklist

You can perform many steps on our ductless mini-split maintenance checklist while you want to defer to the pros for others.

Monthly Tasks:

Clean primary mesh filters.
Remove debris and vegetation from within 18” of the outdoor unit.

After Approximately 400 Hours of Operation (Every 2 - 6 Months):

Clean internal air quality filtration components.
Dust indoor unit exterior and vents.

Every 6 Months:

Examine and clean evaporator coils. If grimy, professionals do a bleach deep cleaning.
Clean the blower and fan wheel and have pros balance the fan wheel.
Have professionals check refrigerant levels and lines for leaks.
Schedule a professional tune-up to handle all ductless mini-split maintenance tasks.

Annually:

Inspect and clean the condensate drain and pan. Call the pros if water is found.
Check the condition and mounting of the condensing unit.

We recommend two tune-ups a year to protect your equipment and keep it running at peak efficiency.

How to Clean a Ductless Mini-Split System

As part of your ductless mini-split maintenance tasks, homeowners can clean the system, reducing the load on the equipment. Always follow the manufacturer’s instructions for your particular HVAC model.

First, turn the system off.
Using a dry cloth or vacuum attachment, clean inside the system cabinet.
Remove the reusable air filters and clean them according to the manufacturer’s instructions. Most call for a thorough rinse with warm water and drying filters completely before returning them to the system.
Clean the indoor air quality filtration components according to the manufacturer’s instructions and replace disposable filters after 400 hours of use.
Wipe down the exterior of the indoor unit with a damp cloth.
Use a soft-bristled vacuum attachment or spray from the hose to gently clean the A/C fins. Be careful — the coils bend very easily.
Spray a solution of one part bleach to nine parts water onto the blower wheel and fan to remove grime. Let sit for five minutes, then wipe clean with a damp cloth.
Wipe the drain pan with the same diluted bleach solution.

Common Issues and Troubleshooting Tips

Routine ductless mini-split maintenance will help you avoid common issues, including:

Poor Airflow: Clean or replace filters and clear any obstructions.
Poor Heating or Cooling: Check the thermostat settings, check for ice on the coils, and clear debris from the outdoor unit.
Strange Noises: Inspect for loose parts or debris in the fan.
Water Leaks: Clear the condensate drain line and ensure the unit is level.
Foul Odors: Clean filters and check for mold in the unit.

If these actions don’t resolve the issue, contact your trusted HVAC service pros.

Benefits of Professional Ductless Mini-Split Maintenance

Regular ductless mini-split maintenance keeps your system running at peak efficiency, saving you money on your energy bills and extending the life of your equipment. Homeowners can handle some of the maintenance, but some are best left to professionals. Consider the biannual tune-ups an investment in your mini-split system. Regular cleanings and tune-ups will save you money by preventing damage that can turn into costly repairs.

Schedule Your Ductless Mini-Split Maintenance Today

Aire Serv^® is your go-to for air conditioner repair and all of your other HVAC needs. Follow our ductless mini-split maintenance checklist to keep your system in peak condition, and call us for its tune-ups. We help you manage indoor temperatures year-round, lower your energy bills, and protect your HVAC equipment.

Your satisfaction is baked right into our services because the Neighborly Done Right Promise^™ backs everything we do. Request an appointment today. Let’s keep your mini-split humming.

This article is intended for general guidance only and may not be applicable to every situation. You are responsible for determining the proper course of action for your property and your situation. Aire Serv is not responsible for any damages that occur as a result of any advice or guidance derived from blog content. For the most accurate guidance, contact an independently owned and operated Aire Serv for more information and a professional on-site assessment.