TOP 4 REASONS OF ICE ON AIRCONDITIONER.|| REASON OF ICE ON AC AT NIGHT TIME ONLY.|| Jabirwaqas.com

Refrigerant is an important part of your air conditioner. It collects the heat in your home and moves it outside.

But over time vibrations and normal wear and tear can lead to refrigerant leaks. This causes your A/C system to work less efficiently and can also cause the air conditioner to freeze. (This is one of the reasons we strongly advocate regular air conditioning maintenance.)

When an air conditioner is low on refrigerant or charged incorrectly, the coils containing the refrigerant get too cold, causing ice to build up on the coils. The problem grows quickly when the air is humid or the coils are dirty.

How to fix it: Get a professional to inspect your refrigerant charge. If your air conditioner is low on refrigerant, get the leak fixed or you’ll end up in the same situation again soon.
The other main cause of an air conditioner freezing up is improper airflow. This basically means that your air conditioner is suffocating and not getting enough air to operate properly.

Insufficient airflow causes the coils to drop below freezing. The humidity in the air then collects on the coils, creating an even greater buildup of ice on your air conditioner.

This is usually a result of a dirty air filter that needs to be replaced but can also be caused by:

An air filter that is too restrictive
Not enough return ducts
Improperly sized or damaged ductwork
Dirty evaporator coils
How to fix it: Replace your air filter. If you’re still having problems, call a professional air conditioning repair company to take a look.

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Your central air conditioning isn’t cooling your home very well. So you go to check the inside unit and, lo and behold, your central AC’s inside unit is frosted over! (Which you probably find strange considering it’s summer).

What could be the problem?

There are 2 main issues causing this. Read on to learn what they are and what to do about them or reach out to us for expert air conditioning repair in Framingham, MA and the surrounding area
Reduced airflow to the inside unit will cause the refrigerant coil to freeze up.

First, we’ll tell you what usually causes reduced air flow to the inside unit and then explain the science behind why reduced airflow would cause the unit to freeze up.

What to Do:
Change the air filter: A dirty air filter blocks air from returning to the inside unit.
Unblock return grills: Move curtains or furniture blocking return vents that block air from returning to the inside unit.
Open closed supply vents in unused rooms: Closing supply vents in unused rooms does not save you money. It causes several problems instead, like a frozen inside unit.
Have a professional look at the blower: The coil will freeze if the blower’s motor malfunctions in the inside unit and isn’t pulling in enough air.
Have a professional clean the evaporator coil: Dirt insulates coils from heat, meaning that they can’t absorb heat from the air being pulled over it by the blower motor.
The evaporator coil (tubes forming the A-shaped part of the inside unit) has cold refrigerant flowing through it. A blower pulls in air from your home and over that coil, cooling the air.

But when there’s little to no air flowing over the cold evaporator coil, it quickly frosts over because there’s less heat to absorb.

When it’s frosted over, air can’t easily flow through the coils (it’s a solid block of ice now), reducing airflow to your home.

Here’s an illustration: Imagine you have a cup of water and every hour you add 5 ice cubes into it. You also have a hair dryer blowing hot air over the cup. Obviously, the ice would melt after you add ice into the cup.

Now imagine that you put something in between the hair dryer and the cup while you’re still adding ice to the cup. Because there’s something blocking airflow to the cup, the ice isn’t melting. This would continue until the cup is completely full of ice.
When your AC system is low on refrigerant, pressure drops causing the evaporator coil to get abnormally cold.

So when returning air hits the coil, humidity/moisture from the air beads ups on the coil and quickly freezes. This continues until the evaporator coil is frozen.

If you’re low on refrigerant you also have a refrigerant leak.

That means you’ll need a professional to find the leak and fix it before adding more refrigerant.
Turn off your air conditioner
Let the AC defrost
Change your air filter (If it’s dirty)
Open all the closed supply vents your home
Ensure no furniture or drapes are blocking the return vents
If the filter was not dirty and there were no problems with the supply or return vents, you most likely need to call a professional for AC repair help. Jabirwaqas.com