How To Reset A Delonghi Portable Air Conditioner

Air conditioners help cool down the temperature of a space by transferring heat outside. If you own a Delonghi portable AC, you may wonder how it can be reset when needed. Luckily, were have done the legwork for you, and here is what we found.

An air conditioner may require resetting after a power outage. Follow these steps to reset your portable AC:

  • Turn off or unplug your air conditioner
  • Leave it for a few minutes
  • Start it up again

It is easy to reset a portable AC, and doing it yourself saves costs. Keep reading to get detailed information about resetting a portable AC and when to do so. We'll also see how to troubleshoot portable AC problems and how to get the most from yours!

a blue Delonghi brand logo in electronics and home appliance store, How To Reset A Delonghi Portable Air Conditioner

Resetting A Delonghi Portable Air Conditioner

Nothing beats knowing how to do things by yourself without spending an arm and a leg to get it done. Not all HVAC problems require putting a call through to a professional immediately.

To reset a Delonghi portable air conditioner, all you need to do is follow the simple procedure below:

a white portable electric purifier

Turn Off Your Air Conditioner

The first thing to do if you want to reset a portable AC is to turn it off. To do this, just press the power button. You can also unplug your AC if need be. Obviously, you can't reset an AC when it is on.

Leave It For A Few Minutes

After turning it off, leave the air conditioner for about five minutes. This is because switching it on immediately may lead to other problems.

Turn It Back On

You can turn on your AC or plug it back in after waiting. Turn on the thermostat so the air conditioner begins a new cooling phase.

You can simply reset your portable air conditioner by pressing the reset button on your controller. But if your Delonghi air conditioner does not have a reset button, all you have to do is a hard reset. 

You can check out your owner's instruction manual for a guide on resetting your portable air conditioner according to the model. 

Generic portable air conditioner standing near the window in the room

How Long Does It Take For Delonghi Portable AC To Reset? 

Resetting an air conditioner can take some time. Delonghi portable air conditioner takes about five minutes to reset and begin a new cooling cycle.

The resetting process will leave your air conditioner off for a few minutes and clear off any settings you have saved. After this process, you can ensure your portable air conditioner has been reset. 

Why Is My Portable AC Not Working?

You will know it is time to reset your Delonghi portable air conditioner when it stops working due to a power outage or electrical failure. Here are other reasons why your air conditioner is not working well:

Clogged Air Filter

If your air filter is filled with debris or dust, the cooling capacity of your Delonghi air conditioner will be reduced. To fix this, remove the grill at the back of your air conditioner and remove the dust in the filter with a brush. Then rinse it off with water. 

Click here to see this AC air filter on Amazon

Dirty Condensation Coil

When cleaning your filter, check your condenser coil in the top compartment of your portable air conditioner to know if it is dirty. If it is, you should clean it also so it won't affect how your system works.

Blocked Exhaust Hose

Ensure you check the exhaust hose for blockage or kinks because your portable air conditioner will not be able to cool off your room if hot air cannot pass out through the vent

In the process of doing this, take note that portable air conditioners are designed to only cool spaces with a specific temperature. If the outdoor heat is above 95°F, the Delonghi air conditioner will find it hard to keep up.

Is There A Reset Button On The Delonghi Portable AC?

The older Delonghi portable air conditioner units have a reset button on the remote control. If you have a model like this, you just need to press the remote, and your air conditioner will reset. 

Some of the later units have a reset button, too, but not on the remote control. It is positioned under the grill of the inside unit. For some models, it can be found on the outer side.

In the latest units of the Delonghi series, it is now possible to reset the system in two ways. Either you press the control button in the control panel or hard reset it by unplugging.

Click here to see this Delonghi portable AC on Amazon

Can You Run A Portable Air Conditioner All Day?

You can leave your AC running all day and all night if you want. But doing this means you must pay a lot for electric bills.

If you check the amount you end up paying for your electricity bill when your AC is constantly on and the amount paid when your system isn't run often, you will see that the difference is clear.

It is better to turn off your AC for some time so it can cool down, reducing wear and increasing longevity. Many people prefer to leave their AC running long, reducing the system's lifespan.

When a portable AC is constantly on and does not go off, there could be more heat or moisture sources in the space that need isolation.

An air conditioner of the right size can run in 1020 minute intervals, cooling your home according to the temperature setting.

Portable Air Conditioner on the wooden planks

How Long Can Portable AC Last?

Portable air conditioners can last up to 510 years, depending on how well it is maintained. Portable air conditioners are cheap, but their lifespan can't be compared with that of a central air conditioner as they are different.

Moving a portable air conditioner affects its durability. They are not made from long-lasting materials and usually have low compressor quality. All of these can reduce the lifespan of a portable AC.

What Should I Do When My Delonghi Portable AC Is Not Cooling?

There are things you can do to get your system running efficiently again when it stops cooling your home. Do these if you notice that your AC is not cooling:

Check The AC Mode Setting

The first thing to do is to check if the AC mode is set correctly. Air conditioners have three settings, which are Cool, Dry, and Fan. Make sure to set it to "cool" mode and see if it starts cooling again.

Check The Temperature

The reason why your air conditioner is not cooling might be because it is set to a low temperature.

For example, if the temperature of your room is 70 degrees, and the thermostat of your portable air conditioner is at 80 degrees. Then, your air conditioner will not cool.

To resolve the problem, use the thermostat control on your air conditioner to set the temperature lower to see if it starts cooling. 

Can A Portable AC Be Repaired?

Electric air purifier in the room

Yes, most issues you might experience when using a portable air conditioner can be solved.

Over time, your system will start getting old, which means that it will require more frequent repair. If that is the case, you should consider getting a new one.

Pros And Cons Of Portable AC

Just like other home appliances, portable AC has some advantages and disadvantages. Despite its cons, portable AC does the work it is designed for but isn't as efficient as the traditional air conditioner.


Here are some of the benefits a portable AC offers:

  • Portable air conditioners don't need installation.
  • They can be easily carried from one place to another.
  • Portable AC is affordable.
  • They don't occupy too much space and can be easily hidden.


Here are the disadvantages of using a portable AC:

  • Portable AC produces unwanted noise.
  • The tank of a portable AC needs to be emptied often.
  • They cannot cool large rooms.

To Wrap Up

a blue Delonghi brand logo in electronics and home appliance store

Delonghi portable air Conditioners are affordable and can be easily repaired. But it may need retting after power outages.

To reset your portable air conditioner, you have to unplug it, leave it for a few minutes, and then plug it back. You can consult a professional if problems persist.

If you enjoyed this post, here are similar articles you may like:

Do LG Portable Air Conditioners Need To Be Drained?

What To Do When Portable Air Conditioner Makes Loud Buzzing Noise

How To Install A Black And Decker Portable Air Conditioner [In 5 Easy Steps!]

Share this article

Leave a Reply

Your email address will not be published. Required fields are marked *