I have a Pinguino PAC WE 110 ECO. I brought the unit just over 2 years ago and it has remained in the box until today when i finally unpacked it and tried to use it. Firstly, im a refrigeration appren

probably the water sensor is bad and needs to be replaced.

Try this site
http://www.delonghi.com/en-int/search-results?q=DeLonghi+PAC85+Pinguino+Portable+Air+Conditioner+8,500+BTU+8.6+EER+%28PAC-85,+PAC+85%29&sfp=433

You may gave a refrigerant leak which would cause inefficient cooling.

Read instructions and see if it says anything about cleaning or filters. A.C units **** air in and there is a filter that probably needs cleaned.Also,while cooling, the vent to the outside should put out warm air. Also, if it is less than a year old, contact the manufacturer and they should help you out. Good luck.

Probably, the
"ft" means to check the filter. If your filter has not been cleaned in a while, it cannot breathe,and operate properly.

Vinegar is the cheapest. or CLR @ home depot. Tom

I had similar problem .... on very humid days unit leaks ..... temp solution for me was to drain the unit .... inserted wire coat hanger into tube .... lots of watery gook came out.. - even tilted/tipped the unit inorder to get as much water out of it.......afterwards unit worked fine.

We are VERY SASTIFIED with the Delonghi Pinguino - bought it years ago when it first came out and it has provided years of troublefree service .... the water build up / leaking was only recently - in fact we never drained the thing until this year.

CHECK AND CLEAN THE DUST FIELTER AND ALSO CHECK THE BLOWER THEN TRY IT

1. Clean air filer every 2 weeks.
2. clean ACCU and FCU every 3 months.
3. check and re-tight all electrical connection every 6 months.

www.myrepairmaster.com.