6 Common Problems With Window AC Units

When the temperatures begin to warm, millions of Americans rely on a window AC unit to create a cool indoor living space. As you may know, these portable AC units are designed to fit into a window.

While they use the same mechanics to remove heat from the air as central AC systems, window AC units are susceptible to several problems.

#1) Leaking Water

A common problem with window AC units is leaking water.

As condensation forms on the evaporator coil, it will drip down to the area below.

Most AC units are designed with a hole or tube to drain the water out the back. If the hole or tube is clogged, the water may accumulate and spill out the front.

#2) Dirty Filter

Like central AC systems, window AC units remove dirt and particulate matter from the air by passing it through a mesh filter.

They pull air hot air through the bottom where the filter is located, after which the cooled and filtered air is released through the top.

If a window AC unit has a dirty filter, it may struggle to cool the room or space in which it’s used.

#3) Not Turning On

Window AC units may fail to turn on if there’s an electrical problem.

A typical window AC unit draws about 600 to 1,200 watts of power. Therefore, using a window AC unit on the same circuit as other power-hungry appliances may trip the breaker.

If the breaker trips, the window AC unit won’t turn on.

#4) Dirty Coils

Once installed, the rear part of a window AC unit will be exposed to the outdoor elements.

Unfortunately, this means leaves, pine straws and even insects can find their way into window AC units.

If either of a window AC unit’s coils become dirty, its cooling performance may suffer.

#5) Excessive Cycling

Another common problem with window AC units is excessive cycling.

If a window AC unit constantly turns on and off, for instance, it may be the result of a bad thermostat.

The thermostat is responsible for measuring the temperature of the air. When it fails, the window AC unit won’t be able to tell how cold the air is.

#6) Air Leaks

Window AC units are prone to air leaks.

When you install a window AC unit, you’ll have to pull thin and flat pieces of plastic to the sides. Known as accordion panels, they are designed to seal the window so that air doesn’t leak out.

Unfortunately, accordion panels aren’t particularly effective. They are made of plastic, which has a low insulation value.

As a result, air will almost certainly leak out the sides of your window AC unit.

If you are experiencing a problem with your air conditioning or heating call us at 512-336-1431 to schedule an appointment. We’ll be glad to come out and take a look at the issue.

1431-183 A/C & Heating proudly serves Round Rock, Georgetown, Cedar Park, Pflugerville, Leander, Liberty Hill, and North Austin.