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Leaking Haier Commercial Cool air conditioner.

I have a Haier Commercial Cool model CPN12XC9-E stand alone air conditioner, (1 month old). It constantly requires draining and continually leaks. How do I prevent this.

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There are 3 drain holes in the primary pan right underneath the evaporator that need to be clean with a pipe cleaner or a wire of somekind and there is also a secondary drain behind it that will work only if the unit is 100% level. To access the primary drain pan you have to take all the screws of the back cover 5 on each side and 3 in the center above the electric cord and behind the air filter and only then will you be able to see these very small holes. Use a flashlight to make sure. Have fun!Reply

Posted on Jul 07, 2010

  • My_fix_works Jul 09, 2011

    I have had 2 of these units and they both swamped my carpets with a serious amount of water. I returned the first one thinking it was malfunctioning, the second one (larger) does the same thing.

    I contrived 2 solutions.

    1/ It appears that it is quite possible that rain runs down into the exhaust hose. I re-worked a plastic outdoor dryer vent hood and attached it outside over the hose exit port. End result is it looks like it was made exactly for that purpose.

    2/ As far as keeping it level and drain holes clear, been there - done that. One more step is still needed. I went to the auto supply and bought a "Blitz" brand oil drip pan, the kind you lay on the floor under the car to catch oil drips. This will buy you time to see if the unit is leaking water and allow you to sop it up before it ruins the carpet and subflooring (as it did mine). One other BIG reason to do this - the frigging water drain plug is at the extreme bottom of these units - WTF? At least when the unit is standing in a Blitz pan you can let the water drain and sop it up with a towel.

    The reason for me to go through all this effort is that the solution lasts longer than the silly warrenty.

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It all boils down to maintenance. My gf has the Comnercial Cool and it was leaking like a seive. Step 1) throw the soaking towels in the dryer. Step2)unplug drain at bottom tilt machine front to back and get rid of excess water hopefully in a plastic snow melt tray that you cleverly put under your machine. Step 3) Once the water has drained put the machine in an area where you can work on it easily. Step 4) Using a long shafted star headed screw driver remove all the screws on the back of the machine. If it does not easily pop off you have missed a screw or left the drain plug in. Step 5) Remove the screws holding the cooling coil in place there should be three. Swing the cooling coil to the right GENTLY so you have room to work on the drain. Step 6) clean all dust and fliters from the machine use a duster, cloth or wet dry shop vac. You can also sop up or vaccuum any water left in the machine. Step 7) at the bottom where the cooling coil sits there is a resevoir that is probably clogged with rust and lime scale. Use an OLD toithbrush (not your girlfriends) to scrub the **** blocking the drain hole. Step 8) as you clean the drain area pour some clr or diluted bleach with water down the troughs on either side of the machine. You may notice a rusty discharge....oh also coming from the machine drain spigot as well. Step 9) use a sewing not one you'll drop into the bowels if the machine; but one you feel confident in handling. Use the needle to clean all the gunk in the voids of the drain channel. Loosen it up and flush with your clr or diluted bleach. Once you notice you have clear running discharge stop taking anti biotics and your machine is feeling better too by the way. Clean the inside of the machine as best you can drying it as best you can.Final Step) put the machine back together. I did all this took an hour or so and we have had a week free of leaks or excess water. Cheers.

Posted on May 15, 2013

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There is a little motor that hangs on the side of the pan with a "splash blade" on it it is supposed to splash the water up on the warm coils so it evaporates into the warm air, that little motor on my machine is locked up. I think this is the entire problem, if it was working it would not overfill.

Posted on May 29, 2013

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You did not actually solve the problem. Portable units are very helpful in many cases. This model the OP talks about is SUPPOSED to never need to be emptied as the water is SUPPOSED to evaporate. I guess the answer "Turn it off" can be applied to any issue in this forum though, huh? I think I'll go answer all of them that way!

Posted on Aug 25, 2009

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I need a site to go too for Haier to download an owners manual which we did not receive when purchased at store model # ESA424J-L

Posted on May 20, 2013

Your splash blade could be locked up or you may need to clean out all the drains on it, there may be build up that is guiding the water out so that it leaks. There are a couple other things it could be, but you won't know for sure unless you open it up and check it out. You should still be under warranty so check with some commercial HVAC contractors to see if they can to the repairs under that warranty. Either way you will still need someone to open it up and properly identify the problem. Good luck! http://www.beaconairservices.com.au

Posted on Sep 26, 2014

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For all portable AC units:
While researching portable AC units, I recall reading somewhere if there is a lot of condensation collecting, turn the a/c setting off but leave the fan running.
This will help evaporate the collected water.
Good luck :-)

Posted on May 21, 2013

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Hello i have a similar unit. With the same issue, i took the back off and it seems the pan that is in there, is filling up with water...im not sure if the heat coils are bad, or if i have a small clog on the tray. I am emptying the try for tonight, and taking it more apart tomorrow for further "research". So for now, take off the back..and empty the trey.

Posted on Jun 28, 2010

  • Martial Cote Jul 07, 2010

    there are 3 drain holes in the primary pan right underneath the evaporator that need to be clean with a pipe cleaner or a wire of somekind and there is also a secondary drain behind it that will work only if the unit is 100% level. To access the primary drain pan you have to take all the screws of the back cover 5 on each side and 3 in the center above the electric cord and behind the air filter and only then will you be able to see these very small holes. Use a flashlight to make sure. Have fun!

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Turn it off
it is a portable ac it will need constant tending
get a window unit if this is a problem 4 u
or unplug it while at work

Posted on Jul 30, 2009

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