Question about Haier CPN12XH9 Portable Air Conditioner

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Haier portable AC water collection tank full in one hour.

I use this portable AC seldom, in the living room and only as a supplementary unit for my house central AC. I bought this appliance new 16 months ago and have used it only a few times. Around 60 minutes after running on AC mode, the unit shuts down because the collection tank is full. I have to drain the AC manually by removing the rubber plug on the back, evacuating the water to a short pan. This means that every 60 minutes this AC is producing 1 quarter of water. This unit is self evaporative, so I assume this should not be happening. The ambient temperature outside the house is around 100F but the interior temperature created by the house central AC is around 79F. The relative humidity is not that high. What could be causing this problem and there is a simple way of fixing it? Thanks for your help!

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My unit was working fine for a couple years but now it won't evaporate. It still cools fine but it also collects about 16 ounces of water every hour and then shuts itself off until I drain it. I'm wondering it the evaporative mechanism it broken some how.

Posted on Aug 28, 2013


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

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Posted on Jan 02, 2017

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SOURCE: 1 month old Haier 12000BTU Portable Unit LEAKS like mad!

If it has an evaporation pan to "Cook Off" the moisture, it would be putting it back into the air, where it just removed it from. This will, in time cool the room but the humidity is being returned. It is possible however, that drain from the condensor to the collector is clogged, causing it to overflow. If you still have it, install the window exhaust kit that came with the unit. This will help eliminate the humidity from the room and the moisture from the unit.
As for the mols problem, Use a sprayer of choice, depending on how much area you need to spray. Mix unscented CHLORINE bleach with water, 1/2 cup bleach to 1qt water. Spray until surface is wet but it doesn't have to run down the walls, unless you need to treat them too. The chlorine bleach will kill any mold & fungus spores that it contacts. Unscented is a lot easier to live with. The regular smells like a swimming pool for a few days.

Posted on Aug 28, 2009

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SOURCE: Haier 12,000 portable unit. Red light comes on STOP appears

Drained tank then operated fine

Posted on Oct 08, 2009

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SOURCE: Air Conditioner/Heater not working for more than 2 hours.

If you are running it in a very humid envioronment then it will make more water than it can evaporate off.

Posted on Nov 12, 2009

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SOURCE: My portable air conditioner Haier started linking

Hi. Check the drain hose and look for kinks and partial blockage. Even algae can often block these tubes. J.

Posted on Jul 06, 2010

Testimonial: "There was dust covering the entrance of a tube where the water used to flow and evaporate, it was right beneath where the air filter is located. Removed the dust and is working fine again. Thank you"

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SOURCE: Our Haier window air conditioner

The drain hole (there is no plug) should be on the bottom of the drain pan, outside the house. It may be clogged or the outside part of the unit is not tilted down by 1/4", which allows it to drain properly.
Look carefully for the drain hole, as a clog may be concealing it.

Hope this helped you.

Posted on Jun 27, 2011

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This is in the coffee maker section, but I think you are asking about a portable air conditioner.
The unit pictured shows the tank which is there to collect water.
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The air "conditioner" is actually an air cooler and when air is cooled, its ability to hold water vapour is reduced. If the humidity is high in the air that is being cooled, as it is being cooled it will condenseand fill up the white tank.
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Not up on the unit, but water condenses on the evaporator of an a/c unit dropping onto a tray, as self evaporating, would assume that the drain from that tray is fed to the top of the compresor, which will have a tray around the top, heat from the compressor will evaporate the water, same as with a fridge. In dehumidifier mode, water would need to be collected, rather than evaporated back into the atmosphere, defeats the object other wise. so is lower tank around compressor? that would be for a/c mode upper tank for dehumidifier

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Ok So We Bought This. But We Have A Problem Does It Take Water Or Not? Thats What I Need To Know! Please Help!

The DeLonghi PACA120E Portable Air Conditioner quickly cools rooms up to 400 square feet and comes equipped with several functions that make operation easy and low maintenance. Its 3 operating modes are supplemented with no-drip technology, an adjustable thermostat, 24-hour timer, and much more. This unit truly takes the work out of cooling medium- to large-sized spaces. Multiple Modes and Functions The DeLonghi A120E-also known as the Delonghi Pinguino PAC A120E-offers 3 operating modes and 3 additional operating functions that make this model versatile and energy efficient. Cool Mode: 12,000 BTUs of cooling power help cool large rooms, offices, or basements. Dry Mode: Reduce room humidity by removing excess moisture from the air. Fan Mode: Circulate air to keep your room comfortable without using a lot of energy. Low, medium, high, and an auto-speed are all included (auto speed selects a fan speed for you). Smart Function: Your AC uses Cool and Fan mode based on ambient room temperature. This function will also select your fan speed and keeps your room comfortable without wasting energy. Sleep Function: Using a low fan speed, the AC gradually reduces operation so your room remains comfortable but the AC runs more quietly and efficiently while you sleep. Boost Function: This function is ideal for the summer months and uses the maximum fan speed to rapidly reduce your room temperature. Useful Features Using DeLonghi's patented no-drip technology, this unit is "dripless" under normal conditions, meaning the AC will discharge all of the moisture collected from the air-so you typically won't have to worry about draining the water. When dehumidifying a lot of moisture in Dry mode, excess water may collect in the internal collection tank. Once the tank is full, the air conditioner will automatically turn off to avoid overflow damage. You can also use the included continuous drain hose as a no-fuss way to eliminate excess water as needed. An adjustable thermostat provides additional convenience by allowing you to set your room temperature. The DeLonghi portable AC will cycle on and off to eliminate over-cooling and maintain the set temperature. Additional Features Washable Air Filter: A washable air filter helps remove allergens and other particles from incoming air and saves you money on replacement filters. Quiet Operation: High efficiency compressor and components result in quiet performance. Electronic Controls: The LCD screen displays the timer and temperature settings, while intuitive indicator lights accompany each operating mode. 24-Hour Timer: This feature lets you program your AC to turn on or off up to 24 hours in advance, so it only runs when needed. Window Bracket: Double window bracket is included with purchase for flexible installation. Self-Diagnosis System: The unit includes a self-diagnostic maintenance system that identifies malfunctions should they occur. Remote Control: Use the full-featured remote control to change modes, set the timer, and select a fan speed up to 23 feet away from the receiver (on the front of the unit). Portability: Easy-roll casters and dual carrying handles make it simple to move this model from space to space.

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When the tank is FULL, the unit should automatically shut OFF and the FULL light will illuminate on the control panel. If that is not happening, the float valve inside the tank near the top, may be stuck in the DOWN position. Remove the bucket, look for the float valve and jiggle the handle to see that it moves freely and is not broken.

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The drain hose is only to be used when the unit is in Dehumidifier Mode. In AC/Cooling Mode, there needs to be water in the tank to keep the coils cool. It is not recommended to use continuous drainage in AC Mode. My personal recommendation is do not operate Cooling Mode & Dehumidify Mode at the same time. As the dehumidify mode generates heat. Not something you need to be doing when you're trying to cool the room.

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If you are operating the dehumidifier function, as well as the AC function. The water collection tank for the dehumidifier side may be full and overflowing. Or the water line that runs to the water collection tank may be clogged. I suspect, it's the latter.


To unclog it, you'll need an 18" long, plastic Zip Tie appropriately sized to fit inside the tubing. Carefully insert the Zip Tie into the tubing and gingerly work it past the bend in the tube, until the Zip Tie bottoms out or you run out os usable Zip Tie. Slowly pull the Zip Tie out while rotating (twisting) it. This will dislodge any clogs. As you reach the end of the Zip Tie, be prepared for some water to follow.

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To replace your Owners Manual call Haier Customer Support 877-337-3639

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