Delonghi Portable Air Conditioner Error Code and Solution

Are you looking for a solution to eliminate errors in your AC Delonghi? If so, maybe this post can help you to solve it. We have found from sources on the internet about manuals for Delonghi portable air conditioner products that contain how to install, how to use it to solve problems if an error occurs, and there are many more instructions available in this Delonghi manual. Please see the table below, and don’t forget to download a pdf file about this fault code air conditioner.


The air conditioner  • There is no current • Wait
does not come on • It is not plugged  into the mains • Plug into the mains
• The internal safety device has tripped • Call the Service Centre
The air conditioner works for a short time only • There are bends or kinks in the air exhaust hose • Position the air hose correctly, keeping  it as short and free of curves as possible to avoid bottlenecks.
• Something is preventing the air from being discharged •Check and remove any obstacles obstructing  air discharge
The air conditioner works, but does not cool the room • Windows, doors and/or curtains open • Close doors, windows and curtains, bearing in mind the “TIPS FOR CORRECT USE” given above
• There are heat sources  in the room (oven, hairdryer, etc) • Eliminate the heat sources
• The air exhaust hose is detached from the appliance • Fit the air exhaust hose in the housing at the back of the appliance (fig. 1).
• Dust filters clogged • Clean or replace the filters as described above
• The technical specification of the appliance is not adequate for the room in which it is located.
During operation, there is an unpleasant smell in the room • Dust filter and (when present) electrostatic  filter clogged • Clean the filters as described above
The air conditioner does not operate for about three minutes after restarting  it • The internal compressor safety device prevents the appliance from being restarted until three minutes have elapsed since it was last turned off. • Wait. This delay is part of normal operation.
The symbol <!>  and one of the following messages LT/HL/Cf/PF/FI appears on the appliance display: • The appliance  has a self diagnosis system to identify a number of malfunctions. • See the SELF-DIAGNOSIS chapter.

Error Code and Solution

Error Message Solution
The appliance is fitted with a frost protection device to avoid excessive formation of ice. The appliance starts up again automatically when the defrosting process is completed.
Low Temperature (frost prevention)
You can empty the internal safety tray following the instructions in the section “End of season operations”. If it reoccurs in cooling mode, contact your local authorised customer services. In heating mode: empty the internal tray.
High Level (internal tray full)
 you can do the water filter needs replacing as described in the section: “Replacing the limescale filter”.
Change filter
Please contact your local authorised service centre if this is displayed.
Probe Failure (sensor damaged)
This message could appear if the water filter is particularly clogged. See section: “Replacing the limescale filter”. If the filter has been replaced recently, contact your local authorised service centre.

The two tables above are some of the instructions from the manual for Delonghi Portable Air Conditioner. If you want to see more details, download the file below

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