Why Does My Ductless Mini-Split System in Mesa, AZ, Leak?

A ductless mini-split system offers an efficient way to cool or heat your home in Mesa, AZ, but it might occasionally leak water. Water leaks are frustrating and can cause damage to your walls or floors. Here are some reasons your ductless mini-split might leak water:

Clog in the Drain Line

A mini-split removes moisture from the air and directs the condensation to a drain line. If dirt and debris build up inside the drain line, it might develop a block that prevents proper water flow. When this happens, water may back up and leak from the indoor unit.

Incorrect Installation

If an indoor unit was installed incorrectly, it might not drain properly. You need a level unit or one that tilts slightly toward the drain line to ensure proper water flow. If the unit is in a bad position, water can pool inside it and eventually leak out.

Low Refrigerant Level

A low refrigerant level can cause the evaporator coil to freeze. When the ice on the coil melts, the water may overflow from the drainage system. Refrigerant issues often point to a leak in the system, which you need an HVAC service technician to resolve.

Loose or Faulty Drain Pan

The drain pan under the indoor unit collects condensation and sends it to the drain line. If the pan has a crack, damage or is loose, the water might not drain properly. You can occasionally check this pan with regular maintenance.

If your mini-split is leaking water, getting help right away can help prevent damage to the system or your floors and walls. It’s best to call an HVAC professional instead of trying to solve the problem yourself. Contact Island Breeze AC today so that we can discuss your ductless mini-split service options.

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