If your home isn't feeling as cold as it should, even after the air conditioner has been running for a while, it could be a sign that the evaporator coil is dirty. A thick layer of dirt, dust, and other debris on the coil is a sure sign that it needs to be cleaned. Additionally, if you notice ice forming on the coil, this is another indication that it needs to be serviced. The most common symptom of a dirty evaporator coil is that your home isn't reaching the temperature you set on the thermostat.
Even if the air conditioner is running for an extended period of time, your home may not reach the desired temperature. This is because a dirty coil prevents your machine from working properly. You may also notice that your unit is constantly running, but your house isn't getting any cooler. If you suspect that your evaporator coil is dirty, it's best to contact a trusted air conditioner service professional.
They are trained and equipped to properly clean the evaporator coil and air conditioning unit. This will help ensure that your air conditioner runs efficiently and effectively.