How to Take Apart a Delonghi Air Conditioner


A Delonghi air conditioner is a unique heating and cooling system that operates as an air conditioner or heat pump and a furnace in one unit. It was developed by the Delonghi Company in Italy and first manufactured for sale in 1996.  The company now sells its products around the globe. Since this article focuses on how to take apart a Delonghi air conditioner unit, we will be discussing all these units. So let us get started.

How to Take Apart a Delonghi Air Conditioner

Step-wise Guide on How to Take Apart a Delonghi Air Conditioner

Step 1:

Tools you need. The tools we use for this job are a small flat-head screwdriver, a Philips head screwdriver, a power drill with steel core bits, and a 7/32 inch diameter carbide bit for making a hole in the wall. With these tools, you can easily take apart Delonghi Air Conditioner by yourself.

Step 2:

To open the unit, flip up the two buttons on the Delonghi AC unit, so they no longer lock the unit in place. Then, slide off the cover of your air conditioning unit. Once you have removed the upper panel, you will look at something like this: two cables and a power switch. Disconnect the wires from their respective location.

Step 3:

First, you must remove the metal bar that runs across the unit. It is best to use a crowbar or some such device to do this.

Now take off the screws at the bottom of the Delonghi Air Conditioner Unit. These are usually hexagon-shaped screws that require an Allen key. Once you have taken out all four screws, there will be one more screw located on top of where the airflow indicator was placed earlier. Some sticker might cover this screw located above airflow indicators, so make sure you remove that before doing anything else.

Step 4:

Now, you have to take out the control box. To do this, simply lift it out of its location and continue disconnecting all other wires attached to it.

Step 5:

This step shows how to take apart a Delonghi Air Conditioner. We are removing the bottom panel, which is very easy if your unit has a simple design.

After taking off the bottom panel from the Air Conditioner, you should see the air conditioner’s compressor. There will be some bolts holding this compressor in place. Later on, we will be installing a new one, so keep these bolts safe for later use. If your compressor also uses screws, it should not be difficult, but if it is a kind of screw requiring an Allen key, you can use the same method we used to remove the metal bar in step 3.

See the Air Conditioner's Compressor

Step 6:

We are almost there; once you have taken out all four bolts that secure the compressor, you can easily take off the compressor. You might need help from someone who knows about Air Conditioning units to do this as it is quite heavy and awkward to carry around and install alone. After removing the compressor, we can see a copper coil that converts electrical energy into thermal energy for cooling air, so loosen those two nuts and disconnect the copper coil by unscrewing its attaching screws with a proper tool like a socket driver or adjustable wrench.

Step 7:

There will be three wires attached to the copper coil so remove these wires, and there will be an electrical connector attached to the compressor, which also needs to get disconnected.

Precautions While  Taking Apart a Delonghi Air Conditioner

Turn On Air Conditioner By Using Ac
  • Ensure that the AC is switched off and disconnected from the power source.
  • Unplug the wire connected to the earth terminal (Grounding Terminal).  This step is important for safety precautions as one must not get electrocuted while working on the air conditioner. The wire connected to the ground terminal (the green-colored wire connected in between at least two wires with thick insulation – typically black, brown & blue, or red &blue; also look out for a copper-colored earthing rod inside the unit which can be used as an alternative grounding point.)
  • Preferably work away from water vessels; use a sander or dusty material. Gloves should be worn while handling broken parts, and keep them dry by wrapping them in cloth or paper while working on the AC.
  • Always wear safety glasses/goggles when dismantling any electrical or mechanical device. This step is indispensable as glass fragments may fly off if a window breaks during disassembly and injure your eyes.  

Common Issues With Delonghi Portable Air Conditioner

Problem 1: The air conditioner does not turn on.

The remote control or power switch may have turned the unit off. Would you please verify that the On/Off button is illuminated when you press it? The unit may be in standby mode; please press and hold the Cool or Fan key for 2 seconds to activate your unit.

Press and Hold the Cool

If no lights are visible in front of your AC, check if there is power at the outlet with a lamp or other appliance plugged into it (Please note that this is very important as many do not believe it can happen, but I have seen several reviews where people are mad at how long their brand new units sat and waited to cool while they thought they were broken).

When replacing batteries, never use different types at one time. Always use the same type of batteries in the remote control and conditioner.

If your unit is not cooling or dehumidifying, a circuit breaker may have tripped in the condenser; please check before calling for service. Also, verify that all connections from the outdoor unit to the inside air handler are tightly secured and insulated against the ground when installing on a metal roof without a conduit tube.

Always run a cool cycle first to allow sufficient water evaporation, then follow with heat mode if needed.

Problem 2: Unit Will Not Start After Being Off for Several Hours/days/weeks.

When you turn your unit back on after it has been off for a while, be sure to run at least two cycles of cool and dehumidify. The unit has a built-in air purifier and will not run if there is insufficient water evaporation or condensation. If you skip the first cycle, your unit may turn off automatically after 10 minutes since no operation was detected for several hours. If so, it will need to be reset before continuing operation.

Problem 3: Strong Fan Smell From Ac and/or Remote Control

Strong Fan Smell From Ac andor Remote Control

When turned on, the strong smell (often like paint thinner) that comes from the Remote Control or Air Conditioner can be caused by dry air being sucked into the vents from indoor and outdoor units. This is typical in the Summer months when doors and windows are closed more often than in the winter when homes are left closed all day. This smell will dissipate after a few minutes and is a normal operation.

This smell can also be caused by dust build-up on the airflow sensor located in the outdoor unit just below the evaporator coil, which kicks on when there is no airflow to move cool air around inside your home. Many people do not realize that this sensor also removes hot, humid indoor air from their house, causing condensation to form on it that drips into the drain pan. This hot moist air is pulled through your venting system where dryer lint, dead skin, hair, etc., gets stuck on it, creating a perfect place for a fungus called “Legionella” to grow and release toxic chemicals into your home. So please do not turn off your unit as this will worsen over time and cause many potentially fatal illnesses. Please refer to the Legionella vent cleaning sheet included in this article for more information on properly cleaning these sensors, which should be done once every six months.


Finally, I hope you have clearly understood how to take apart a Delonghi air conditioner. Ensure proper safety while dismantling the air conditioner. Thank you, and have a nice day!

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