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"Air Conditioner Service" Posts

AC and Its Role in the Modern World

How AC invented the modern world Back in August, we talked on this blog about how Willis Carrier invented the air conditioning unit as a way to control humidity in a printing warehouse during a…

Baltimore Schools have no AC – No Relief in Sight

Two years ago, light was shed on a situation in Maryland. The Baltimore County school system came under fire for a lack of air conditioning in many of the public school system’s facilities. At that…

Many will Need New AC Systems by 2020

Air conditioners are making a shift. Many air conditioners use a refrigerant called chlorodifluoromethane, though it is often known better by the generic term R-22 or the brand name Freon. Unfortunately for many homeowners, this…

SMU Power Outage Did Not Stop Classes

Earlier this month, Southern Methodist University found many of its buildings without power. While a few classes were stopped early or did not meet, many students and faculty kept on keeping on through the SMU…

Why is My Air Conditioner Frozen?

Frozen AC Unit Coils is Not a Good Thing Your home air conditioning system cools your air, and makes your home a place of comfort. Many people take a look at their indoor air conditioner,…

How to Winterize AC Unit Systems

At Metro Express Service, we always recommend that customers make sure to comprehensively winterize AC unit and related devices. Taking care to disconnect power and provide sturdy protection against the harsh winter weather can help…

What to Do if Your Thermostat Keeps Blinking

As we get into the hottest part of the year, you definitely don’t want to experience any issues with your air conditioner, of course. However, if you do that doesn’t automatically mean it will be…

Rules of Thumb for When to Change Your Air Filter

One of the most important things you can do to keep your heating and cooling systems working properly between maintenance checks is to change your air filter on a regular basis. But just how “regular”…

Cleaning Your Air Conditioner Evaporator Coil

Your air conditioner evaporator coil is an extremely important component of your cooling system. It circulates the refrigerant that absorbs heat from your indoor air and takes it outside so that you can be cool…

Common Reasons Your Air Conditioner Makes Odd Sounds

There’s nothing much more alarming than when your air conditioner makes odd sounds. It may seem that if you don’t immediately turn it off, catastrophe will strike. While the truth is that a strange noise…