Ductless mini splits are becoming a popular choice for heating and cooling due to their energy efficiency and flexible zone control. In this post, I will talk about how you can maintain your ductless mini split for maximum performance.
1. Clean Out The Air Filters
The air filters in your ductless mini splits can be accessed via the side of the indoor unit. A good rule of thumb is to open the filter and clean it every 3 to 4 months. If you do not use your ductless mini splits often, you can get away with cleaning the filters every 6 months. Remember that the filters remove dust, bacteria, pollen, allergens, and other particles from the air. A clean filter can dramatically improve your indoor air quality. The indoor filters are designed to be very durable and should last several years. Every 5 years, you should change out the air filters for new ones.
2. Clean The Outdoor Condenser
For the outdoor condenser to operate at its maximum efficiency, it needs to be clear of leaves, debris, grass, etc. Before cleaning the outdoor condenser, make sure that the power to the unit has been safely turned off. You can open the unit's grill and remove any leaves and debris inside it. A quick rinse with a low power garden hose can help clear out any dirt or dust inside. Remember that the outdoor condenser needs to direct air flow to heat and cool your house. Ideally, the line of site for the condenser should be clear of any trees, brushes, or other air blocking items.
3. Recharge Your Refrigerant R410a Gas
Ductless mini splits heat and cool your home via a refrigerant cycle of R410a gas. The flow of this gas from the condenser to the indoor air handler allows the system to pump out hot air so that your room can stay nice and cool. Depending upon the method of installation, the refrigerant gas may leak from your mini split over time. A good rule of thumb is to have an HVAC contractor check your system for leaks every 5 years. If there has been a leak, the contractor can weld it shut and fill the unit with new refrigerant.
4. Replace Your Old Unit
Ductless mini splits are designed to last between 10 to 15 years. Like any old appliance, as time passes new technology leads to higher energy efficiency and better features. If your ductless mini split is older than 15 years, you should consider replacing it with a newer model. New inverter technology has made the current line-up of products up to 40% more efficient than what was available 15 years ago. The difference in energy efficiency will save you money. The new units are also quieter, smarter, and loaded with extra features that have only been available recently.