Mini-split air conditioning systems offer a convenient cooling alternative to central air conditioning systems. Also known as ductless air conditioning systems, they feature many of the same parts as their central counterparts but without the ductwork. Mini-split air conditioning systems feature a condenser coil, an evaporator coil, a compressor, air filter and fan (among other things). When using a mini-split air conditioning system to cool your home, however, you’ll need to maintain it.
Clean the Coils
You’ll need to clean the coils to ensure optimal performance and efficiency. Mini-split air conditioning systems have an evaporator coil that’s located indoors, and they have a condenser coil that’s located outdoors. Over time, debris will build up on the surface of these coils. If left unchecked, this debris will interfere with the heat exchange process.
Try to get into the habit of cleaning your mini-split air conditioning system’s coils twice a year. Clean coils will result in better cooling performance and efficiency.
Clean the Air Filter
Another important maintenance task for mini-split air conditioning systems is cleaning the air filter. While central air conditioning systems use a disposable air filter, most mini-split units have a washable air filter. Therefore, you won’t have to buy a new air filter; you can simply wash your unit’s existing air filter.
You should clean your mini-split air conditioning system’s air filter at least once a month. A clean air filter will allow air to circulate through the unit more easily. At the same time, it will protect your mini-split air conditioning system from unnecessary wear and tear.
Professional Inspection
There are some maintenance tasks that only a qualified heating, ventilation and cooling (HVAC) technician can perform. If your mini-split air conditioning system has a refrigerant leak, for instance, you’ll need an HVAC technician. You can prevent problems such as this from occurring, though, by getting your unit professionally inspected at least once a year.
Inspect the Drainage Line
A maintenance task that many homeowners overlook is inspecting the drainage line. Mini-split air conditioning systems produce condensation. Airborne moisture vapor will condense on the evaporator coil. It will then travel through a drainage line leading to your home’s exterior.
Drainage lines can become clogged, however. Mildew may grow inside of your unit’s drainage line, thereby restricting the flow of water. And if water can’t flow through the drainage line, it will back up in your home.