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How do I unstick a stuck reversing valve on LG split cycle air conditioner

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Therinnaiguy
  • 1420 Answers

SOURCE: lg split system air conditioner

Try sutting off the power to both units. This may reset the unit. Check out the service manual at LG website www.lgusa.com. Go to their support page and put the model number in. Remove and replace the batteries in the remote. If there is a communication error, the inside unit will display 3 flashes. If all else fails, call LG at 1-800-243-0000. Good Luck!

Posted on Aug 30, 2007

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  • 1 Answer

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Posted on Oct 20, 2008

  • 1 Answer

SOURCE: Blueway split system wall air conditioning doesn't work properly.

Hi,I have had problems with my Blueway A/C it was very cheap but NASTY,anyway I might be able to help, I made a website with my manual that includes the error codes that I could not find on the net anywhere ,I have also sourced a company in sydney who has spares and have the contact details listed and started a forum that we can help each other out with

Posted on Apr 05, 2009

  • 99 Answers

SOURCE: 24000 BTUs LG split air conditioner external unit

Hi; Look into Your owners manual for troubleshooting codes. If You dont have a manual call or google the manufacturer...alpharome416

Posted on Jan 22, 2010

  • 81 Answers

SOURCE: Art Cool LA181CNW Split System Air Conditioner: hi, i am using an lg split airconditioner. the sp...

Sound like a defective receiver board. Have this checked. Also check to see that your remote transmits. Hold the top part of the remote to your phone or digital camera lens. press a button and a light should appear on the screen of your phone or digital camera screen.
Hope this helps I take the time to answer your question so please rate me

Posted on Jun 28, 2010

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1 Answer

Is Conia air conditioner CA24001 split system reverse cycle I cannot get heat?


Sounds like either bad reversing valve or to get you going during the summer someone may have wired it to stay energized all the time which would have been a thermostat problem.

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contact shops that install units and get quotes. retailers generally have contractors that will give quotes for installation on new units.

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I'm a hvac technician myself looking for some advise


if it is a heat pump you could have a clogged actuator piston or a stuck reversing valve depending on whether the unit is energized in the heating or cooling cycle. Try pulling the wire on the reversing valve coil on and off a few times and that may force it to unstick. There is a lubricant that you can pour directly into the true suction line above the reversing valve itself. Supco oil is the name i believe. Also can try removing the actuator piston at both the condenser and the evaporator and checking to see if there is some trash in the line, especially if the lines were brazed without using nitrogen.

Jan 29, 2013 | Heating & Cooling

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Have a LG Split -can't get it to heat. Air conditioner works fine, when I set the remote to heat all that happens is the blower works.


If it does not start heating after a couple of mins check change over valve and coil located in condensing unit if it's stuck on cooling sometimes you can tap it to free it but if it is sticking it will need replaced

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The reversing valve is stuck in one position and could indicate a bad valve or a bad control board.

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The reverse valve and silenoied are bad, you need to change them or replace the condencer.

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Reversing valve not switching over to air on heat pump. compressor will come on for about 10 minutes, then shut off. Hot air comes out vent.


Look for any refrigerant leaks - no or low refrigerant can cause problems in both modes. The unit may be going off on low suction.

-OR-

The unit may be stuck in the heating mode.

Make sure the system is calling for the correct mode (cooling or heating) - some systems are auto, but if you can, select cooling since that is the requested mode. Check for power at the reversing valve inside the condensing unit. If power exists, then the reversing valve is stuck. It could also be the reversing valve solenoid coil, so make sure that isn't bad. There should be a strong magnetic field at the solenoid coil.

If you can hear the reversing valve clicking (moving), check the T-stat and make sure it will switch modes. Also check the reversing valve relay (those can be located in either the indoor unit or condensing unit).

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