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Fix Delonghi Portable Air Conditioner Not Evaporating Water

I have started to hear from several people in the past month that their Delonghi portable air conditioner is not evaporating water, it will still cool, but all of the water just stays in the basin!

I decided to write this quick guide to help all of you out with this problem and help you avoid buying a new unit. If you are having problems evaporating water on your Delonghi portable air conditioner, you may want to check out this guide and see if this solves your problem!

Delonghi Portable Air Conditioner Not Evaporating Water

Are you considering buying an air conditioner?

The decision to buy an air conditioner is one that should not be taken lightly. If you are considering buying an air conditioner, here are some things you need to consider before making your final decision.

1) What will you be using the air conditioner for?

2) What size room does it need to cool?

3) Is your home new or old and do you want to minimize maintenance costs?

4) Do you want a single unit, window AC, or ductless system for larger spaces?

5) If the unit is broken, who’s responsible for fixing it, and how much does that cost?

6) How long should I expect my AC to last (in terms of BTUs)?

7) Who provides repairs and at what cost if needed

Best portable air conditioners reviews

When it comes to spending a ton of money on a home air conditioner, you need one that can handle the job and work for a long time. However, not everyone wants to invest in an HVAC system. This is where portable ACs come in! They are much cheaper, but still capable of doing the same things as their more expensive counterparts.

After extensive research and hours of use, I’ve put together this list of reviews for the best portable air conditioners on the market: *Lennox 14K BTU Window Air Conditioner *Cool & Quiet 10K BTU 3-in-1 Portable Air Conditioning System *Ovente 8,000 BTU Dual Hose Cooling Fan.

Best cheap portable air conditioners

The Delonghi portable air conditioners have a lot of features to cool off your home or office. But with that, you may also want to know how it deals with water.

The Delonghi portable air conditioners evaporate any water that is inside the compartment. With its circulation pump and venting system, all the water is expelled from inside and outside the unit as well.

Frequently Asked Questions about portable air conditioners

If your unit is not evaporating water and feels cool to the touch, you have a clogged condensation coil. To unclog it, run cold water over the unit for at least five minutes and then restart the air conditioner. If that doesn’t work you can also try letting it sit in a shallow pan of hot water (90 degrees Fahrenheit) for an hour before reattempting to restart it.

In extreme cases, if neither of these methods works or if your unit is leaking from its exhaust vent, replacement of the water pump is needed. If you want more details about how this process works please refer to our blog: Delonghi portable air conditioner not evaporating water–ultimate guide.

Trouble Shooting – Why my Delonghi unit is not evaporating water?

If the unit is not evaporating water, or water is collecting at the base of the air conditioner instead of evaporating in front of the machine, there are three possible reasons. One reason could be that it has been unplugged. Unplugging the unit could cause it to not function properly.

Second, if you have a ventless window air conditioner and you have set it to Cool or Fan only, then it will not be evaporating water because these settings do not cycle through all options for cooling (heat/dry/evaporate). Third, your environment may not be hot enough for effective evaporation.

Common issues with Delonghi portable air conditioner not evaporating water

One common issue people experience with Delonghi portable air conditioners is that the water will not evaporate from the unit. This can result in mold, mildew, and other hazards.

The problem is often solved by removing the drain plug and letting it drip for a few minutes. However, this must be done carefully as water could splash out of the unit or get on something it shouldn’t.

Delonghi portable air conditioner reset button

Many Delonghi portable air conditioners have a reset button. Press the reset button for 10 seconds and the unit will go into standby mode until turned on again. If this doesn’t work, then you may need to replace your water tank as they are not usually replaceable. The panel may need to be removed first, so use a screwdriver to carefully open it up and examine what needs to be done.

Generally, if the bottom right of the panel is loose that is where you need to remove screws and lift it up slightly before pulling out the wires. Be careful not to touch any metal parts and consult with an appliance professional before making any changes yourself or attempting any repairs.

Delonghi air conditioner error codes

The air conditioner’s error codes will show up as LED lights on the control panel. These cases are indicated below.

1. The A/C is not switched on: If your air conditioner is not running, switch it on by pressing the ON button for at least 3 seconds. If it still does not start, your problem might be an electrical connection, faulty power switch, or compressor.

2. The A/C is cooling but the water tank has run out of water: Fill up the water tank and press OK to resume operations.


Why is my portable AC not draining water?

This is a common problem. The water in the base pan on the back side of the unit has turned to ice, preventing any drainage. Turn off the unit, wait ten minutes and then remove all ice from the backside pan. Your cooling should be up and running again in no time!

Why is my portable air conditioner filling up with water so fast?

The Delonghi portable air conditioner is designed to pump water into the base of the unit. After that circulate it through an evaporator coil in order to cool the room. The circulation process takes a lot of energy. Which it causes some of the water in the coil to boil off as humidity.

This humidity is then released into your room as dry cold air. Although this system is efficient and keeps you cooler, sometimes there can be too much liquid on the coils and you’ll see that your portable air conditioners won’t stop filling up with water so fast.

In order to fix this problem, it’s important that you don’t overfill your tank–try adding just enough ice cubes or ice packs that will last for 2 hours.

Also read: How To Reset AUX Air Conditioner – An Ultimate Guide


Like any major appliance, there are some pretty common fixes for the Delonghi portable air conditioner not evaporating water. The first thing to try is to detach and then reattach the drain hose from the rear of the machine. This may dislodge any obstruction and allow water to flow freely.

Next, try simply running a cycle without anything in it just to flush out any obstructions that might be in the tube. If all else fails, there are still some other things you can do! There’s always a way to fix your Delonghi portable air conditioner!

Talha Hanjra

Hi! I'm Talha Hanjra. I have a natural affinity for cutting-edge technological devices, and I enjoy finding solutions to their difficulties. I'll tell you how to fix various outdated gadgets and where to buy the best products. My research and experience will be of tremendous use to you.

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