Airadri
2 min readOct 17, 2021

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Why has ice formed on my air conditioner?

Have you ever wondered that there is ice formed on my air conditioner and what does it mean? Well, the first thing for you to know is that ice formation on an air conditioner is a common problem. When ice or frost builds up on your AC unit, the cooling process gets affected. In worse cases, an air conditioner stops cooling completely.

3 most common reasons behind the ice formed on my air conditioner are:

Dirty air filter

The dirty air filter of your air conditioner hampers airflow over the cooling coils or evaporator coils. Constant airflow inside your AC maintains the temperature of the cooling coil above the freezing point. But when this airflow gets restricted by the clogged air filter, the cooling coil gets too cold. This phenomenon later causes the moisture in the room to condense on the coil and freeze. The frost developed over the coil further reduces the airflow and eventually, the AC stops cooling completely. To prevent this problem of ice formation on AC, clean the air filter of your AC from time to time.

Insufficient coolant level

When the level of coolant (Freon) is less than the required amount, the temperature of the cooling coil drops much below the normal. Due to this phenomenon, the moisture in the room condenses on the coil and freezes. To rectify this issue of ice formation on AC, call an AC repair professional as he will be able to accurately determine if the refrigerant level is just right in the cooling coils.

Faulty evaporator fan

The evaporator fan constantly blows air inside the AC unit and keeps the temperature of cooling coils above the freezing point. This prevents frost formation on coils. But a faulty fan allows the temperature of cooling coils to drop much below the freezing point causing room moisture to condense and convert into frost on the coils. To rectify this issue of ice formation on AC, call an AC repair professional. If you want know common problem regarding AC. Click below link

Most Common Problems with split AC

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