Question about LG Art Cool LA121CNP wall/window Air Conditioner

1 Answer

The unit behind the filter is frozen solid.

The unit behind the air conditioner filter is frozen solid, when the unit is on it's spirting out water, and there's a grinding noise coming from the unit. It's going to be 9+ degrees + humidity in Houston and I have cats in the house.


Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.


    An expert that has over 500 points.

  • Expert
  • 340 Answers

Turn it off thaw out clean evaporator clean filter the grinding is the blower wheel hitting the froze solid. hope the blower wheel is not wrecked. use 409 to clean. Tom

Posted on Jun 17, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Water Filter Frozen

Air blowing directly on things like a water bottle has frozen it solid ( in the REFRIGERATOR SIDE! -- Block airflow BUT... I think the problem is YOU NEED TO CLEAN ( blow out with air!...the ONLY WAY) YOUR CONDENSOR COILS ( in the back, outside...behind the cardboard cover nowadays) Your fan has to run too long ( because refrigeration is the "removal of heat"...this is what those coils do but they are insulated with dust!)...too long blowing to achieve the same temp result = Frozen Stuff

Sep 24, 2017 | Frigidaire Refrigerators

1 Answer

My air conditioner is no longer blowing cold air it only seems so be on fan mode though i have it set on cold. Also there is a wire hanging down behind the filter which i hadn't seen in the past.

Hello my name is Heath it will be my pleasure to assist you. The first thing to check is the filter in the furnace or air handler. Also check the inside coil to be sure its not frozen up. Does the air coming out feel cold? It sounds like the unit could be low on charge which means it has a leak and should be leak checked repaired and properly charged. You would need refrigeration gauges to put on the system in order to properly check the refrigerant charge in the system. One other thing could be a dirty condenser coil. Turn the power off to the unit and use a garden hose with a strong nozzle and spray water through the whole coil to try and blow any dirt or debris through the condenser coil in the outside unit.

Aug 27, 2011 | Haier HWF05XC7 Thru-Wall/Window Air...

1 Answer

I have a Goodman A/C unit model number cpke 36-1a. My problem is that the fan in the house works along with the unit fan outside, but no cold air in the house. What do I need to check? thermostat is set at...

First check the filter to see if it is not completely clogged and make sure the
coil fins behind it are not frozen solid. If it is then shut off system or switch it over to
Heat to defrost the coils if you have a heat pump, then replace the filter.
Then check the outdoor unit to see if the large copper line coming to it is cold
(this means the compressor is running and not just the fan)
Also Make sure the thermostat is in "AUTO" and "COOL"
The last thing to check is to make sure the duct work to the return has not separated or
has not been torn open by animals (cats love to do this under mobile homes).
Sounds like a ductwork problem or plugged filter from what you describe. Hope this helps.

Aug 10, 2011 | Heating & Cooling

1 Answer

Water dispenser just stopped working. Ice dispenser still works and the refrigerator has a new filter

two possibilities

1) the water valve is defective it has one inlet from the house plumbing,two outlets, one for i/m one for water dispenser

2) the reservior that chills the water is frozen, it is located behind the lower crisper drawers in the ref. to see if its frozen remove crispers and shelves and tap on it , if hollow sounding it's not froze if solid sounding its froze. to thaw it turn off unit for at least a hour

Jul 21, 2011 | Kenmore Side by Side Refrigerator

1 Answer

The interior of the air conditioner behind the adjustable directional flow fins is covered with mildew. How can it be cleaned?

Remove the front of he unit, as if you're going to clean the filter. That will give you access to what you need to clean. Use warm water and dish washing liquid to wipe off the mildew. Rinse with clear water and a sponge, dry thoroughly and replace the filter and the front of the unit.

NOTE: Before attempting any of the above. Turn the unit OFF & Unplug it.

Jul 20, 2011 | Frigidaire FAC124N1A Air Conditioner

1 Answer

How to change or clean the filter and where to download a manual

DeLonghi has the manuals for their portable air conditioners here: . The direct link to the PAC C120 manual is .

Before cleaning, turn off the air conditioner. To clean the filter, pull it straight up from behind the top of the air intake (on the back of the PAC C120). Vacuum off the filter. If it is very dirty, immerse it in warm water and rinse several times. (The water should not above 40 degrees Celsius (104 degrees F)) several times. Then allow the filter to air dry. Slide the filter back into the air conditioner and turn the unit back on.

I hope this helps.

Cindy Wells

Jul 17, 2011 | DeLonghi PAC C120 Portable Air Conditioner

1 Answer

Not cooling looked at inside behind filter and it is frozen


A frozen evaporator coil means one of two things, a lack of air flow or low refrigerant (freon).

Make sure the filter is clean and the coils are free of dust and dirt. If the unit blows good air (strong flow on high) when it first starts up and then freezes you are low on refrigerant and need to have it recharged.

Jul 21, 2010 | Goldstar Heating & Cooling

2 Answers

Delonghi pac w160a...''no water symbol'' stops on in airconditioning mode even though water tank is full

In the back of these units where the cord pulls out, there is usually a red reset button, try pushing that to reset the unit, also make sure the filter is clean, pulls from the top out of the unit. Make sure the coils are clean as well behind the filter.

Good Luck!

I’m happy to help further over the phone at

Nov 12, 2009 | DeLonghi Air-To-Air Portable Air...

Not finding what you are looking for?
LG Art Cool LA121CNP wall/window Air Conditioner Logo

472 people viewed this question

Ask a Question

Usually answered in minutes!

Top LG Heating & Cooling Experts

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Tim Whalen

Level 3 Expert

3074 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a LG Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides