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How to Know When Evaporator Coils Need Cleaning

Why Dirty Evaporator Coils Are Bad

Cleaning the evaporator coils is one of the things that HVAC technicians do during annual maintenance appointments because it helps to keep the AC running smoothly. The AC evaporator coils are essential to the efficient performance of the HVAC unit. The evaporator coils and the condenser coils are the main parts of the function of an air conditioner. This blog post discusses the warning signs that evaporator coils are dirty and need to be cleaned. 

The coils are filled with refrigerant that makes them very cold, so when the fan blows air over them, the air is instantly cooled. This causes some of the moisture in the air to condense into a liquid recycled by the system. When the AC coils are too dirty, they can not do their job correctly. 

Evaporator coil cleaning is pretty simple, but a qualified technician should always do it for safety reasons. The air conditioner needs to be taken apart to reveal the coils, and then the technician can use a soft cloth and cleansing solution to wipe down the coils and remove any grime build-up. Cleaning the coils can improve function almost instantly and lead to a longer lifespan for the air conditioning unit. 

The Loss of Cooling Function

coolingHaving dirty evaporator coils reduces the air conditioner's ability to cool air and do the job efficiently. When the AC coils are dirty, the system loses cooling function until it stops cooling the house completely. As the air conditioner struggles to cool down the air with dirty coils, it drives up utility bills. Homeowners can save money on cooling costs by installing HVAC maintenance and regularly cleaning their evaporator coils.

A build-up of grime, dust, and debris on the coils' surface impacts the coils' temperature. When the coils are too cold or not cold enough, it negatively impacts the air conditioner's function. To keep an air conditioner working at its optimal capabilities for fast and efficient cooling, the AC coils need to be kept clean. Changing the air filter can help keep the coils clean between maintenance appointments. 

Frost On AC Evaporator Coils 

Frozen evaporator coils are often caused by not getting the coils cleaned enough. Because dirty evaporator coils can impact the temperature of the coils, this often leads to them freezing over. The condensation becomes frozen to the surface of the coils rather than dripping off like it is supposed to. 

Homeowners should pay attention to warning signs of dirty AC coils because the problem can worsen over time. The grime and ice on the coils can cause corrosion of the metal. Once the metal coils have corroded, they are often beyond repair and must be replaced. Cleaning the AC coils improves the AC system's lifespan so that homeowners can make the most out of their investment. 

AC Runs Longer Cycles

coilWhen the AC cannot produce cool enough air to lower the house's temperature to thermostat settings, the air conditioner ends up running forever. Homeowners may notice that the AC is always running, but the home is never quite cool enough. For example, the thermostat may always hover several degrees above the desired temperature. 

This is due to the reduced cooling capabilities of dirty AC coils. The system needs to be able to efficiently cool the air to keep AC cycles short. Why are long cycles a bad thing? The longer the AC runs, the higher the utility bills will be. Cooling can be extremely expensive for homeowners, and keeping the AC coils clean helps to lower costs. It is also better for the environment to promote efficient performance from cooling systems. 

About Chad's AC Direct 

Chad's AC Direct is a local team of expert AC technicians that provide outstanding service at an affordable price. Homeowners can depend on this local HVAC company to provide top-rated service with honesty and integrity. Call them today for evaporator coil cleaning in Montgomery, AL!