As a homeowner, when you see water dripping from your indoor unit, you automatically think it’s a huge problem. But there are times when it’s only a minor issue and a quick fix. Let’s take a look at the reasons this could occur.
Possible Causes of Water Leakage
When the unit is in the cooling mode, the evaporator coils and suction line will sweat. If you aren’t familiar with these terms, the suction line is the refrigerant line that's inside of the black insulation. One of the main functions of the black insulation is to keep condensation from escaping and dripping onto the floor. If the seams are open or if insulation is missing, it can result in dripping.
During the summer months, the evaporator will produce a lot of water, which then runs down the length of the coil, into a reservoir pan and then down the drain. This drain empties into a condensation pump or into the ground itself. If the coil is not clean, the water isn’t able to run down the coil as efficiently and the flow is halted by dirt buildup. This is one of the primary reasons homeowners encounter water on the floor. Cleaning the coils annually is a simple way to avoid such problems.
The evaporator produces a lot of water during the summer, which runs down the coil into a pan and then down a drain. If the root of the problem is a dirty coil, then the water mixes with dirt and empties into the drain and other places where it could become problematic. Similar to drains in the kitchen or bath, it doesn’t take a lot of dirt or buildup to clog a drainage system and cause issues. A bigger problem arises if the unit is situated in a finished basement or attic. Leaking water can cause massive damage that goes unnoticed until it’s too late. This is another important reason to schedule annual inspections and air filter changes.
To the contrary, when heating your home, if it seems like your heat pump never turns off, it's possible the unit is too small and has to work double time to compensate. In addition, poor insulation can also prove to be problematic, so it’s best to have a certified HVAC technician inspect the heat pump and make sure everything is in working order.