Question about DeLonghi Pinguino PACL90 Portable Air Conditioner

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Delonghi Pinguino PAC L90 is flashing Lt on the display.

What does that mean? Also, where can I get a new filter for it?

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Re: Delonghi Pinguino PAC L90 is flashing Lt on the...

I was able to buy the 3M filter for it from

Posted on Feb 28, 2008

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Re: Delonghi Pinguino PAC L90 is flashing Lt on the...

It is in Frost Prevention mode - the appliance will start up again automatically once finished.

Posted on Feb 26, 2008

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Have a pac L90 and behind the filter it develops ice buildup after running for about 1 hour. Cleaned filter but problem is still there. Have used this unit for about 2 years

I have the same problem and mine is the same age. I think it's low on freon but no one near me works on them so I'll never know for sure.

Jul 06, 2010 | DeLonghi Pinguino PACL90 Portable Air...

1 Answer

How to conect my air condittinion pinguino pca L90

This really Expensive AC quite on me. The fan works great, I hear the Compressor turn on and it still doesnt blow cold air. Should I flip out?

May 14, 2009 | DeLonghi Pinguino PAC-700T Air Conditioner

1 Answer


they all take refrigerant but there are other things like dirty filter or condensor coils that will cause the same problem

May 09, 2009 | DeLonghi Pinguino PACL90 Portable Air...

1 Answer

PAC L90 LT thermostat not working, unit icing over

No that would be either a dirty filter/coil ir low refridgerant if it's freezing in cooling mode.

Clean/replace the filter, clean the coil and if it keeps doing it, have a technician who is EPA certified for servicing systems with refridgerant to look at it/add refridgerant.

Mar 24, 2009 | DeLonghi Pinguino PACL90 Portable Air...

3 Answers

Error Message

It's actually "Ft", which means "Full Tank".  The instruction manual says to drain the internal safety tank through the drain hoses.
To drain the tank, open the cover on the rear of the appliance. Pull out the 2 drain hoses, take off the caps, and let all the residual water flow out.  When all the water has been drained, place the caps back on the hoses and put the hoses back inside.
It also says you need to clean the filters and let them dry thoroughly before putting them back.
This is also the procedure for "End of Season Operations."
Hope this helps!

Jun 05, 2008 | DeLonghi Pinguino PACL90 Portable Air...

2 Answers

Delonghi pac l90 air filter

Call 800-865-6330.  The white accordion 3M Filtrete filter is $37.95, and is NOT available on the Delonghi website.

May 27, 2008 | DeLonghi Pinguino PACL90 Portable Air...

1 Answer

Delonghi Pac L90

Hoses for proper connection should have been included with your purchase. Without the hoses the set-up can not be done satisfactory. One is for fresh air supply and the other is the hot air exit hose. These are normally vented out a window. Check with the dealer where you perchased the unit from. If from a private individual contact them.

May 21, 2008 | DeLonghi Pinguino PACL90 Portable Air...

1 Answer

FE Light

You need drain the water and then function normally.

Sep 23, 2007 | DeLonghi Pinguino PACL90 Portable Air...

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