Updated at: 08-12-2022 - By: Sienna Lewis

Exactly how long does it take for your air conditioner to de-ice up? De-icing your air conditioner might take anything from one to 24 hours. However, the amount of accumulation in your unit will affect this time frame.

The evaporator coils in your air conditioner will freeze if you use it in cold weather and are prone to setting the temperature too low.

Even if your air conditioner doesn’t work properly, this could be a huge problem for you. Bits of ice can be blown out of the fan’s blades. The fan’s evaporation will stop after enough ice has developed.

This can lead to additional issues including an increase in ice. An air conditioner running in this situation can inflict irreversible harm if it freezes. This is a serious matter that should not be ignored. I recommend that you make the appropriate adjustments.

How Long Does It Take To Deice An Air Conditioner?

How long do you think it will take for your air conditioner to defrost? The time it takes to defrost the air conditioner varies greatly.

However, the amount of ice that has built up is a major factor. While you wait for your air conditioner to emerge out of its slumber, be cautious of these issues:

Check for an empty drain pan spilling or leaking

Some garments or towels may be helpful in soaking up the water if you can access the inside of your air conditioning machine. Drainage issues can be avoided if the ice thaws faster than the drain basin and drips into the earth.

Shot of air conditioner st a hotel

Be aware of the condensate vent that is blocked

The condensate drip tray would collect the water that had evaporated from the air. The condensate will ultimately leak out of your evaporator’s coils when the ice there melts.

Steps To Deice Your Air Conditioner

Numerous issues can arise if your air conditioner does not work properly. If the evaporator coils freeze, this is one of the most prevalent problems that needs to be addressed.

When the air conditioning system is functioning, condensation forms on the Evaporator Coils because the colder air passing through the coils can freeze it. If you have a frozen evaporator, follow the instructions below for a simple fix. This is how to proceed:

Step #1. Turn off your air conditioner.

Turning off the air conditioning is the first step. Disconnect the USB port on your air conditioner if it isn’t fully connected to the house.

Close the circuit breaker to prevent the air conditioner from being mistakenly turned on when the lid is opened. This can help prevent any potential hazard or electrical problems..

Step #2. Remove the filter from your air conditioner.

By raising the lid, you may get rid of the filter and the gadget. Replace the filter after cleaning it in line with the manufacturer recommendations. To remove the ice buildup, you’ll typically need to use low-pressure water to flush the filter.

You’ll then need to expose it to the sun to dry it. As a last step, you’ll need to remove the old filter and install a new one.

Step #3. Examine the fan

The blade and inside parts should also be checked for signs of mold spores or other impediments in the fan’s path, in addition to the ice itself. Remove any dust that is obstructing the fan’s movement.

Clean the inside of the appliances with a moderate mold treatment to remove the mold. If this doesn’t entirely eradicate the fungus, 1 gallon of water can be used to make an acidic bleach solution. Scrub the moldy areas once more after that.

Step #4. Wash the cabinet.

The exterior and interior of your cabinet can be cleaned using a hot water-soaked towel and a light soapy liquid solution. Make care to thoroughly clean every area of the house. To finish cleaning the cabinets, simply run them under warm water and blot them dry.

Step #5. Switch the air conditioning on

Close the air conditioner’s front door. Connect the gadget and turn it on after that. It is possible to de-ice your air conditioner if it has this feature:

De-icing your air conditioner is an option if it has one. The software will do its duty. How long it will take to finish the process is described in the air conditioning handbook. However, you should set the AC’s temperature to cold rather than warm.

How Long Does Air Conditioner Need To Deice?

Your Air Conditioner Is Estimated To Take Between One and 24 Hours to De-Ice. Your unit’s ice buildup will determine how long it takes to defrost.

For an air conditioner, a coil filled with extremely cold refrigerant is a must. Warm Air Must Be Blown Over The Refrigerant When It Is Turned On. This prevents the coils from freezing by cooling the air while keeping them sufficiently warm.

Using a Refrigerant, the Indoor Coil receives heat from the interior and transfers it to the Outdoor Coil, which then dissipates it outside. This is the reason your outdoor unit appears to be blowing air that is significantly hotter than the ambient temperature, since the system extracts heat from the air in your home and transfers it to the outdoors..

The pressure in the refrigerant circuit can be adjusted to achieve this. Coils can quickly become too cold and freeze if warm air cannot pass over them or if the pressure within is not correct. Because of poor ventilation, pressure, or both, you may find yourself with frozen air conditioners at home.

Humidity Ends Up Making The Problem Worse.

Ice forms on the coils when the air is humidified, making it impossible for warm air to reach inside and re-heat the coils. Ice forms when there is a lot of moisture in the air. It engulfs the air conditioner’s inside, clinging to the copper pipes like an old chest freezer.

How To Know If The AC Is Iced /Frozen?

The second most obvious sign of a frozen AC unit is a lack of cold air coming out of the vents of your air conditioner. Putting Your Hand In Front Of Your Air Vents, You’re More Likely to Have Ice in Your System.

It is also possible to hear a hissing sound coming from the device. You should take action immediately if this is the case in order to avoid further damage. The money you save now will come in handy in the future, I guarantee it.

What Causes The Icing Of Your Air Conditioner?

While your air conditioner is always running, moisture collects on the evaporator coils. If the water is left on the coils for too long, it will freeze, even if it is meant to be dripped off and dried.

It’s possible that water vapor in the grill, cooling coils, condensate lines, and other components will quickly freeze and condense while your air conditioner is running at maximum capacity When your air conditioner is covered in ice, you may notice that it only blows warm air. If there is ice on the outside unit, ice may be building up on the coils inside the air handler.

The following is a list of things that can impede the aforementioned process and cause your air conditioner to freeze.

Poor Airflow

Your Air Conditioner Is More Likely To Overheat When There Isn’t Enough Ventilation. Could be caused by numerous issues, from the Blower Motor to the Air Intakes. In order to keep your air conditioner from freezing, you must ensure that the airflow system allows warm air to pass over the coils. Some of the causes of poor airflow include

Collapsed Duct

Getting in the way of air flow via your home’s ducts might cause problems for your heating and cooling systems. In the event that the rest of your air conditioning system is functioning properly, a collapsed or clogged air duct (or several ducts) in your home may cause your air conditioner to stop working. They begin to freeze because there isn’t enough warm air to keep them at the proper temperature.

Blower Motor Failure

The Blower Motor Is Obviously A Crucial Component Of This Setup. Due to the spinning motor or the Blower Motor’s Run Capacitor, the air does not flow quickly enough over the coils if the Blower Fan stops blowing. The coils begin to freeze when the air supply is cut off. Noises from your air conditioner may be erratic or rattling when the blower motor is dying.

Fan Getting Low Voltage

Occasionally, Home Power Is To Blame. Air conditioners account for a significant portion of your summer energy costs since they require electricity to run many high-power components. A similar problem occurs when your fan or blower motor is underpowered when the compressor is running.

Filtration Is Clogged

In the End, There’s The Air Intake Filter to Consider. Even though it’s easy to overlook, the air filter in your air conditioner needs to be checked often. Your house’s dusty vent filter and the AC unit are separated by this filter which keeps the air (and the compressor coils) clean.

Filters can become a hindrance to flow when they become clogged with dust, and this is no different. It’s impossible to keep your coils from freezing if your air filter is obstructed, even if your blower is at its most efficient.

Coils Blocked By Dust

Additionally, running without an air filter or using an inferior filter can be dangerous. Dust. Refrigerant coils become wet due to condensation on the icy surface of the cooling system’s refrigerant lines. It forms a dense blanket when dusty air is blown over a layer of moist coils. Frostbite can be fatal if the body’s natural insulation, dust, prevents the cold from penetrating the coils. This could lead to a “Icebox” effect because of the additional moisture that collects on the dust.

Refrigerant Levels Have Dropped

Another common cause of freezing is being too low. Your Air Conditioner’s Refrigerant Pipe Is More than likely Clogged With Ice.

Freon is the brand name of the refrigerant used in your air conditioner’s evaporator coils to keep them cool. It is chemically permeable and capable of undergoing rapid state transitions. Freon, for example, may be a liquid that boils or does not boil at the same temperature depending on the pressure.

Your Air Conditioner’s Pressure Is Affected By The Flow Of Air. If any part of your compressor to your interior unit restricts airflow or alters the system’s temperature, this delicate balance could be thrown off. Freon is stored as a gas in your condenser during the normal operation of your air conditioning system. At 100 degrees Fahrenheit, your compressor heats this Freon to the point where it changes from a gas to a liquid.

In addition to being extremely hot, something that’s scalding is also incredibly pressurized. You’ll see this high-pressure, liquid-hot Freon fired up by your air conditioning system as a result. The Freon That Makes Its Way Into Your AC System Is Chilled To About 20 Degrees Fahrenheit Before It Makes Its Way Into Your House. Pressure in the Freon-passing tubes is also too low when refrigerant levels are too low.

Low pressure causes the Freon to cool down before it enters your evaporator coils, making it a lot cooler than normal. There is a risk that the water in the Evaporator Coils will freeze because of this. In order to accurately measure the pressure and level of refrigerant in your system, you should leave it to the professionals.

Filthy Refrigeration Coils

Using an air conditioner removes hair, dander, dust, grime, and mold from your home’s air. As a result, the evaporator coils in your air conditioning system may become caked in filth over time.

Cleaning Some Of The Cruds Yourself May Also Help. Get the Air Conditioner Shut Off First. In addition, some people recommend disabling the system’s breaker. Use A Soft Brush, Such As A Toilet Or Toothbrush, To Remove Debris From Your Evaporator Coils.

Use Your Hand To Gently Rub The Filth Off The Fins Instead Of A Paper Towel. Avoid applying excessive pressure to avoid bending any metal fins or coils.

De-Icing Your Air Conditioner: A Step-By-Step Guide:

A malfunctioning air conditioner can cause a wide range of issues. As an illustration, one of the most common problems is frozen evaporator coils. Condensation forms on the evaporator coils of your air conditioner as the colder air moves over them. Follow These Steps To Restore Your Frozen Evaporator Coil ASAP..

Turn Off The Air Conditioner

The First Step Is to Unplug Your Air Conditioner. If you have any USB ports on your air conditioner that are not fully connected to your home, disconnect them. Use a Circuit Breaker To Prevent Your Air Conditioner From Running When The Lid Is Open.

This procedure is designed to keep you safe from potential hazards or electrical problems. Defrosting takes time, so give yourself plenty of time. Wait a minimum of 24 hours before turning on your air conditioner. For quicker results, use a low-heat setting on a blow dryer alone.

Disable Your Air Conditioner’s Filter

The Filter Can Be Removed from the Device by Lifting the lid. Replace the filter after it has been cleaned according to the package instructions. This Step Typically Requires Low-Pressure Water Cleaning to Remove Ice Buildup from the Filter. After that, it’s time to let the sun do the drying for you. After That, Remove And Replace Any Detachable Filters That Are Easily Removed And Replaced.

Check The Fan

In addition to the ice, check the blade and the interior of the fan for signs of mold spores or other obstructions. Keep The Fan Running Smoothly By Clearing Away Any Dust. Use A Non-Toxic Mold Treatment To Remove Mold From The Appliance’s Interior. Add 1 Gallon of Bleach to 1 Gallon of Water if this does not remove the fungus. After that, re-scrub the moldy areas.

Clean The Cabinet

In order to clean your cabinet, soak a hot towel in hot water and add a mild soapy liquid solution to it before wiping it down. Don’t Forget About The Tucked-Away Spots. After cleaning, use warm water to rinsing and drying the cabinet.

Keep An Eye On The Situation

While your HVAC unit defrosts, you may sustain some unintended damage. This much water coming out of your air conditioner might lead to clogged condensation drains and overflowing drainage pans. Place a few towels around the unit to catch any future leaks, and keep an eye out for any signs of water damage. Once your air conditioner is completely free of ice and all of its components are dry, you can turn it back on. Keep an eye on the device over the next few hours to a few days for any more issues.

Turn On Your Air Conditioner

Close the air conditioner’s front door. Turn on the device after connecting it. Follow These Steps Instead If Your Air Conditioner Has A “Deice Option”:

If your air conditioner has a de-icing feature, use it. Don’t Interfere With What the App Is Trying To Do! The Air Conditioning Handbook has information on how long it takes to complete each step. Turn On The Air Conditioner’s Heat Setting, Not Its Cool Setting.

Is It Possible To Put Hot Water On A Frozen Air Conditioner?

“Can I use hot water to thaw out a frozen AC?” What Do Others Ask? The answer is “yes.” Your AC will defrost faster if you use hot water to melt the ice. It’s not necessary to use really hot water, but rather warm or running water would suffice.

Damaged Parts And Other Issues.

A collapsed duct, a weak blower, or blocked valves can all cause your air conditioner to freeze up. In general, air conditioners are complex pieces of equipment with a plethora of parts and sections. These less obvious problems can be diagnosed with the help of HVAC experts.

Now That It’s Been Deiced, What’s Next?

An HVAC technician’s inspection of your cooling system is highly recommended. Frozen coils are often caused by a lack of refrigerant. Your HVAC Professional Is Able To Add The Correct Amount Of Cooling If Necessary To Restore Your System’s Optimal Performance.

What To Do If Your Outdoor Unit Is Covered In Ice?

For those who have noticed that their air conditioner is blowing warm air and ice has begun to form near the exterior unit, there are a few things you may do. Switching off the thermostat is the first step you should do if you notice ice forming around or near any part of your air conditioner. Don’t Ask for Cold Air That Doesn’t Exist Anymore. Stopping the compressor will allow the refrigerant to cool.

While the air conditioner is off, keep the fan running. An increase in airflow can help melt the ice and make things a little more bearable.

Contact an AC Repair Company as soon as possible. You’re in a dangerous situation that could permanently damage your system if the problem’s root cause isn’t found and remedied. Explain to the technician that your air conditioner is frozen and that you need their assistance. As a result of your urgent call, your service will be prioritized immediately.

You should inspect and replace your air filter if it becomes clogged. In order to help your technician better diagnose and solve your problem, let them know if this was the cause of the problem or only a part of it. Don’t Worry. If the compressor has been shut off and service has been called immediately, a frozen air conditioner can be repaired.

How to Unfreeze Your AC Unit Fast

There is a good chance that your AC unit is malfunctioning if you observe ice on the interior or outdoor unit.

Even worse is the possibility of destroying the compressor, which may cost more than $1,495 in AC repair if you don’t stop operating the AC (more on that later).

With that in mind, here are the procedures to swiftly defrost your air conditioner:

Make sure that the temperature in your house is at a comfortable level.

2- Switch the fan on.

3 – Check and replace your filter if necessary. Before re-starting the air conditioner and assuming that the filter is clean, it’s best to contact a repairman.

If your air conditioner freezes, these steps will only help it to thaw; they won’t protect your unit from further harm from falling ice chunks or ice on the controls, water damage, or any other potential issues.

Here, we’ll discuss the rationale for each of the stages above. In addition, we’ll offer advice on how to avoid costly water damage or a broken AC unit.

There is a reason why your air conditioner is freezing up, and thawing it out will not cure it. We’re here to assist you get to the root of the problem. Just give us a ring or send us an email.

The first step is to turn the thermostat off.

Your home’s air will be substantially cooler if the refrigerant liquid that cools the air is covered in ice. That frigid refrigerant could damage your compressor if it’s routed to the exterior unit. Rather than a cold liquid, the compressor should only be supplied with a superheated gas.

Turning the thermostat from COOL to OFF prevents your AC from sending cold refrigerant to your exterior unit on a continuous basis (where your compressor is located).

Superheated gas should be the sole refrigerant that enters your compressor during normal operation—not cold liquid.

You may be interested in learning more about why your air conditioner is freezing up. Visit our “Why Is My Air Conditioner Refrigerant Line Covered with Ice?” blog post for more information.

Step 2: Activate the fan.

To thaw the frozen coils, you must use your AC’s inside fan, which can only be activated by turning the fan on. This will speed up the thawing process of the ice.

Avoid using the AUTO option on your fan. This option only activates the blower motor when the temperature drops. The AC won’t be able to cool down because you simply changed the thermostat setting from COOLING to OFF.

When you turn on your air conditioner, the blower motor draws in warm air from within your house and blasts it over the evaporator coils.

Is your AC unit going to thaw in time for you to get home?

Unfreezing an air conditioner might take as long as an hour or even 24 hours. It all depends on how much ice has accumulated on the ground.

Keep an eye out for these things while you wait for the unit to thaw out.

A clogged drain is a common example of this. Place a few towels around the perimeter of your indoor AC unit if you can. Water damage can be avoided if the drain pan becomes clogged by melting snow or ice.

A condensate drain that is plugged. Your evaporator’s condensate drain pan will collect the water that condenses as the ice on the coil melts (a white PVC pipe). Drain lines can become clogged with dirt picked up along the way, resulting in water backup and overflow. If you suspect a clog in your condensate drain pipe, please follow the instructions provided in this blog post.

Step 3: Inspect and, if necessary, replace your air filter.

While you’re waiting for your air conditioner to defrost, the most typical cause of a frozen unit is a dirty or clogged air filter.

As soon as you turn the thermostat off, be sure to check your filter. It’s more likely that ice will melt over your air filter and form a soiled pool the longer you leave it in place.

Replace your air filter right away if yours looks exactly like the one pictured below.

Your AC system can fail even if the dust or dirt on your air filter isn’t quite as bad as the one pictured above, so don’t hesitate to replace it out.

Your air conditioner is suffocated by a dirty air filter. Your air conditioner’s evaporator coil will also become colder and colder if there isn’t enough warm air flowing over it. Recall: ice is made of extremely cold refrigerant coils combined with atmospheric moisture.

No, I don’t know where to find it. Look at our blog, “Where Is My Air Conditioner Filter?” if you have any questions.

What do you do now that your unclean filter has been replaced?

As long as your AC isn’t entirely thawed out, you won’t be able to use it. As soon as your AC has been defrosted, you can restart it and use it regularly, but be sure to keep a close eye on it for the next several days.

To ensure that there is no other problem, keep an eye on the AC lines for any ice that may be forming. Call a professional if you observe any ice developing or if you notice any other AC issues.

Step 4: What if your filter isn’t dirty? Make a quick phone call to a specialist as soon as possible.

The only problem that can cause a frozen air conditioner is a dirty air filter. Fortunately, this is the one problem that you can fix on your own.

you may have a more serious issue with your AC if your air filter is clean.

There was a leak in the refrigeration system.

Evaporator coil is clogged with dirt.

-An underpowered or malfunctioning blower motor

-Expansion valve stuck or closed

Disintegration of ductwork

If your indoor or outdoor AC unit has ice on it, it’s a sure sign that something is wrong with it.

In the long run, you’ll end up paying more than $3,000 for a damaged compressor if you neglect this issue.


It can take up to 24 hours for your air conditioner to freeze. This time, however, it is dependent on the specific type and model of the device. There are a number of different ways to defrost your air conditioner, depending on whether or not you have a de-ice option.