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Split AC Leaking Water Inside – How To Fix Air Conditioner Water Leak

My split AC is leaking water inside. What causes a split system air conditioner to leak? How do you fix a leaking AC? One of the most common reasons a split aircon leaks water is because of a blocked drainage pipe. This drain pipe lets the condensation from the AC unit drip down and away from the unit. When this drain pipe gets clogged, the water will drip from the bottom of the AC unit.

Split AC System Is Leaking Water - How To Stop The Water LeakSplit AC Leaking Water Inside – How To Fix?

Is water dripping from your indoor split AC wall unit? The AC drainage pipe can become clogged from dirt or dust. If your AC just started leaking water, most likely the drain pipe is clogged. The best solution is to clean the AC and the complete drainage system.

Need help cleaning out your split system AC wall unit? How to clean indoor split ac unit Use Caution When Performing Maintenance On An AC Unit!

Fix Leaking Split AC - Drain Pipe LocationFix Leaking Split AC – Drain Pipe Location

NOTE: This air conditioning water leak repair is assuming the drain pipe is clogged and causing the leak…

How To Fix Split AC Water Leak – STEP BY STEP

Tools Needed To Fix Water Leak On AC:

  1. Screwdriver (to remove panel)
  2. Empty bucket (to collect water)
  3. Shop-Vac wand vacuum (to remove excess water and remove dirt/dust)

How To Fix Your Leaking AC – Step By Step:

  1. Shut off power switch to AC unit
  2. Unplug AC unit from power
  3. Open the main front panel
  4. Remove the air filters (clean the air filters at this time)
  5. Remove the screws on the front panel (usually 3 or 4 screws)
  6. Pull off the large plastic cover (see videos below for details)
  7. Depress plastic clips at the bottom to access the drain pipe
  8. You will see the drainage pipe at the bottom of unit
  9. Use a bucket to collect water
  10. Remove any fittings or tape holding the drain pipe to the unit
  11. Disconnect the drain pipe from the AC unit
  12. Let the pipe drain the water into a bucket
  13. If you have a shop vac vacuum, use it to remove water from of pipe
  14. Reattach the drain pipe with the fitting or tape
  15. Reinstall the main front panel
  16. Reattach the air filters (be sure the filters are clean)
  17. Turn the unit on, let it run, and test for water leaks

After the drain pipe has been cleaned, you can check the drainage to test the system for leaks. To perform this test see the image below…

Split AC System Check DrainageSplit AC System – Check For Water Leaks (Drainage)

What else can cause an AC water leak? Dust that has accumulated in the AC and in the condensate tray can block the flow of water to the drainage system therefore causing water to leak out.

Is the split AC still leaking water? You may have other issues besides a drain pipe leakage problem. Other common issues are uncapped hoses, excess dirt in system, clogged or a burnt drain pump, tubing within the AC are the wrong size, kinked hoses, etc.

Split AC System DescriptionSplit AC System Indoor Unit Illustration

Fix Leaking Split System Air Conditioner

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MORE AIR CONDITIONER DIY HELP: Window Air Conditioner Leaking Water Into House – Why Is My Central Air Conditioner Leaking Water – How To Divert Water Dripping Outside From Air Conditioner – AC Not Blowing Cold Air – 10 Tips To Keep Your Mini Split Air Conditioner A/C Running Cool – AC Set To ON or AUTO What Is Best? – Turn AC OFF To Save Money?

Split AC System Is Leaking Water CHECK DRAIN PIPESplit AC System Is Leaking Water CHECK DRAIN PIPE

If your AC is still leaking water after performing the suggested steps? Please let us know your AC model number using the form below and we can assist with troubleshooting your issue.

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4 thoughts on “Split AC Leaking Water Inside – How To Fix Air Conditioner Water Leak”

  1. ALLEN VETTER - DIY Repair Assistant

    Split AC leaks can occur from condensation. Possibly your AC does not have a hose connected to it to route the condensation outside.
    Where is the leak coming from exactly?
    What does the repair person say the leak is caused from?
    Either way, check for a condensation leak, as this is a common issue.

  2. I have split air conditioning system and pay for service when leak occurs which is over 120$ each time. Now the problem is this occurs frequently during the season so I will like to know if this a normal situation in this kind of system

  3. Jason Belgrave

    Concerning a spilt system AC, I usually just go outside to the end of the drainage hose and use my shop vacuum to pull any gunk out of the hose, between cleanings.

  4. Andrew Alcock

    LG Split Room Air Conditioner Model: ES-H1264NA4
    Our Air con unit is leaking water.
    I think it is the drain pipe and I tried to follow your video on how to unblock it by removing the filters, cover and locating the pipe.
    The problem is when I have found the pipe there appears to be two pipes which go into one which are held together by tape towards the left and side of the unit (as you look at it) and then a further 1 pipe towards the right of the unit.
    I am confused as this looks very different to the unit on your video which appears to just have one pipe with a gap in the middle.
    I have also looked outside for the drainage pipe on the outside unit but cannot find it anywhere.
    The model of my aircon unit is an LG Split Room Air Conditioner Model: ES-H1264NA4

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