4 Most Common Misconceptions About Air Conditioner

Misconceptions About Air Conditioner

Here are some misconceptions about air conditioners which might change the way you select, use and treat your air conditioner unit. This article will increase the performance of your AC unit, increase its life and will save you some money and trouble, so read to the end.

1.    Air Conditioner only controls the temperature of the room

Air conditioner unit controls both temperature and humidity of the room. The comfort conditions for the human range from temperature of 23C to 27C and relative humidity from 45% to 55%. So, it is important for the air conditioner to maintain the temperature and the humidity of the room, to achieve desired human comfort conditions. The humidity from the room is removed in form of condensed water droplets that is dripping form the indoor unit’s drain.

If the humidity is not removed the sweat will not evaporate effectively for the body surface and hence you will fill suffocation and stickiness on the skin even if the temperature is not that high.

2.    Turning your air conditioner on high will cool your home faster

When you adjust Air Conditioner temperature to the lower value, you cannot expect the air conditioner to cool faster. Because Air conditioner does not work in this way. Indeed, the temperature setting is a target for the air conditioner. It will run (at its full/optimum potential) until the room temperature reaches the desired value. The speed to reach that temperature is not controlled by temperature settings.

In the worst case the lower temperature waste more power and possibly damage the components of AC. We recommend you, to operate your Air Conditioner on temperature range from 23C to 27C.

3.    Higher the cooling capacity cooler will be the room.

Cooling capacity does not determine the minimum temperature, rather it determines the rate of cooling. So bigger units will take less time to cool same area as compared to smaller unit. But the minimum temperature for both cases is same.

As the room is constantly gaining heat from the environment, solar radiation, electric equipment inside room, peoples inside room. As to maintain appropriate temperature and humidity conditions the amount of heat gain must be removed to by installing appropriate sized air conditioner unit.

So to select appropriate size and specifications of air conditioner unit you must read Complete Guide to Select Air Conditioner.

4.    Your AC does not need regular maintenance.

In terms of maintenance we mean the maintenance of indoor and outdoor as well. All the manufacturers optimize their design so that the need for cleaning and maintenance is minimum. Still there are limitations as both indoor and outdoor are open units and need maintenance after some time.


AC Maintenance
AC Maintenance

First talking about the indoor, there are air filters installed inside the indoor unit. These filters are installed to clean dirt particles form the air, so the dirt does not damage or deposit on the evaporator coil of the indoor. If this filter is not cleaned regularly then the dirt will attack on the sensitive evaporator coil of the indoor, also the dirty filter will start to choke, and the cooling efficiency will be reduced. For proper functioning of the air conditioner we advise the used to clean the indoor filters annually just week before the summer.


As the outdoor unit is placed outside in open environment it is even more vulnerable to debris and dirt particles. There are also target for insects and birds’ nests. So, cleaning the outdoor unit annually, is also mandatory for the proper functioning of the air conditioner.

Refrigerant Gas

One of the most concerned issue regarding the maintenance is maintaining the refrigerant gas pressure inside the air conditioner for as long as possible and the manufacturers are doing this job quiet well. Still there is a minimum unavoidable leakage form the AC unit which is unavoidable (at this rate, it will take several years for any noticeable pressure drop). Other reasons for gas leakage include gas leak due to extreme summer conditions or damaged components of the air conditioner. So, if you feel lesser cooling of the air conditioner as expected there are high chances that there is some pressure drop of refrigerant gas.

How to clean AC indoor unit

  1. Take out the air filters inside the indoor unit and rinse them thoroughly
  2. Use blower to remove dust from the indoor evaporator coil
  3. Use no-rinse evaporator spray on the evaporator coil
  4. Use anti-fungal spray to prevent molds.

How to clean AC outdoor unit

  1. Use vacuum cleaner a brush attachment to vacuum the condenser fins or use blower.
  2. Give a wash to the outdoor unit by pressurized water spray.
  3. Use anti-fungal spray to prevent molds.

Use AC Covers

It’s a good practice to keep the air conditioner covered up while not in usage. This will save your air conditioner from the dust, insects and molds through our the off season.

If you want to check-out common error codes in air conditioner read: Error Codes in Air Conditioners

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