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Water leaking from top of RO system.

I have a Kenmore Universal Reverse Osmosis home drinking water system, Model No. 625.347030. The system is 10 years old.

Water is streaming out of a small hole in the top of the RO cap. The water isn't dripping out of the hole, but rather is a fully developed low pressure stream of water. The hole that I am referring to is located in the top of the RO cap and near the base of the threaded cap of the shut off assembly. The water is not coming from the base of the RO cap where it interfaces with the RO housing.

I have replaced the following parts of the shutoff assembly: the top threaded cap, o-ring, diaphragms, and the plunger. It is still leaking water from the top of the RO cap.

The term name for the parts I am describing come from the Repair Parts list and schematic drawing. I hope this additional information is helpful in solving the problem. Can you recommend how I proceed to stop the leak? If the leak cannot be fixed, is the solution to buy new RO system?


Don Gerkin
480-312-7903

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  • 19 more comments 
  • dgerkin Nov 18, 2008

    There is no internal float. There is an automatic shutoff valve which activates when the bladder is full of product water; A check valve that prevents the backward flow of product water from the storage area to the membrane; a Flow control cartridge.

  • dgerkin Nov 18, 2008

    There are no cracks in the cap. Water is coming out of a manufactured hole in the top of the RO cap.

  • dgerkin Nov 18, 2008

    Yes, I replace the RO membrane regulary, the existing one is only one year old.

  • dgerkin Nov 18, 2008

    I need a more specific solution.

  • dgerkin Nov 18, 2008

    I need a more specific solution.

  • dgerkin Nov 19, 2008

    I replaced the flow control cartridge last week with a new one and a new screen, but it is still leaking. The water is still streaming out of the hole is the RO cap that is associated with the automatic shutoff assembly.

  • dgerkin Nov 19, 2008

    There is no plug for the hole.

  • dgerkin Nov 19, 2008

    I have already tried those fixes, but it is still leaking out on top of the RO cap.

  • dgerkin Nov 19, 2008

    Thanks, I already have this manual.

  • dgerkin Nov 19, 2008

    Thanks, I already replaced the o-ring with a new one, and I've reassembled the automatic shut off at least 3 times now. But it's still leaking.

  • dgerkin Nov 19, 2008

    Where is faucet vent hole located? This unit is leaking from the hole in the top of the RO cap.

  • dgerkin Nov 19, 2008

    I need a more specific solution.

  • dgerkin Nov 19, 2008

    I already have the manual.

  • dgerkin Nov 19, 2008

    I already did that. I need a more specific solution.

  • dgerkin Nov 19, 2008

    That was my initial solution. I have triple check this and I still have the leak.

  • dgerkin Nov 19, 2008

    I tried that 3 times already, and it still leaks.

  • dgerkin Nov 20, 2008

    I already checked for clogging. None found and water flows unrestricted through the lines.

  • dgerkin Nov 20, 2008

    No lines are clogged, water is flowing unrestricted in all lines.

  • dgerkin Nov 20, 2008

    I already have a manual.

  • dgerkin Nov 20, 2008

    I'm trying this forum first.

  • dgerkin Nov 20, 2008

    There is no leak at the faucet vent hole or obstruction in the line. If you think Kenmore techs can be helpful, please call them. I not aware of a Kenmore Tech helpline.

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There is a crack in the cap of the automatic shutoff assembly or one or both of your diaphragms are leaking, meaning they may be worn or have a hole. One way to check this is to line the diaphragms with Vaseline and reassemble. Remember; the smallest hole will allow water to come out of the emergency drain hole. : )

Posted on Feb 15, 2010

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Hi,

Check the delivery valve. Replace its rubber cap. Please dont rate me if you are not satisfied with my suggestions. Hope this could help a lot. Thank you.....

Posted on Nov 21, 2008

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I'm looking at the owners manual and it looks like its time for a new one not sure if you have the manual or nor here is the site i hope this will help you http://www.kenmorewater.com/website/customer-assist/manuals/625.347030.pdf

Posted on Nov 20, 2008

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  • 68 Answers

You might have a clog in the line or around the faucets hope this helps

Posted on Nov 20, 2008

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To repair this problem refer to diagram # 10 in the manual you have. Reassemble everything exactly according to this diagram and the leak should be resolved. This should help. Good Luck

Posted on Nov 19, 2008

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My first thought is to make sure all of the parts in the shutoff assembly are aligned EXACTLY as the manual describes...holes and notches...then make sure the cap is tightened to align the mark on it with the arrow on the RO cap. Do not overtighten it.

Posted on Nov 19, 2008

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Hi

Check it this

it will guide u clearly

click

thank you

Posted on Nov 19, 2008

  • Thafa Nov 19, 2008

    Hi

    Using the manual reassemble the device...Before reassemble check all the seals are in good condition and then check separately each device so that u can find where is the problem...And then tight everything properly..

    Thank you




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  • Push tube into fitting past “O” ring seal.

  • Cut damaged area from tube or replace tube

  • Remove “O” ring and inspect “O” ring groove for debris. Clean groove, lube, and reseat “O” ring.

  • Reroute tubing so tubing runs vertically with no sharp bends or loops. (Cut off excess 3/8 tubing so that tube runs "downhill" to drain)

Disconnect drain tube and clean out restriction. (Food particles from garbage disposal).


Posted on Nov 19, 2008

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Please click here and get the service manual....



Good luck..

Posted on Nov 19, 2008

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Hey dude,

Refer to this lik for the explanation :-


http://www.flintandwalling.com/RO_troubleshootingindex.htm



Any issues................

*********************************24/7 available**************************************

Take Care Bro.

Posted on Nov 19, 2008

  • taran_2005
    taran_2005 Nov 19, 2008


    If the sink p-trap is used as the drain point, RO reject water is routed to the faucet air-gap through 1/4" tubing. It gravity drains from the faucet through 3/8" tubing to the drain point. The hole in the faucet body, below the lever, is the air-gap vent. If the 3/8" tubing is restricted in any way, reject water will backup and leak from the faucet vent hole. Thoroughly clean the tubing and the p-trap fitting if leakage occurs at the vent hole







    ********************TRY THIS*****************************

  • taran_2005
    taran_2005 Nov 20, 2008

    Hey buddy,









    Why dont u check directly with them.





    The link wld be :-



    http://www.kenmore.com/shc/s/nb_10154_12...





    b'coz we have already provided u all the possible reasons. And believe me nw kenmore is the only one who cld find tis as over the internet we cannot c ur water purifier.





    If u wish i wld glad to talk to them and discuss and wld be able to tell u.





    Thnx.

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Have you tried to clean out the flow control (part #7167764 Ref #25 on diagram)? It is inside the tube at the end where it comes off the RO cap (and goes to the air gap). Take a fine wire and poke it through the flow control to remove any blockage. This may do the trick.

Posted on Nov 18, 2008

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Sounds like you might have a small clog in tank cell or line cousing a backflow

Posted on Nov 18, 2008

  • Joshua Davis Nov 20, 2008

    then it sounds like its time for a new one

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Did you replace/ service the RO membranes regularly ?
If not, may be its developing high pressure to cause the leak.

Posted on Nov 18, 2008

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Can you see any slight cracks near to the cap .if there r then its leaking from that crack.check out that.

Posted on Nov 18, 2008

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Is there an internal float that is stuck allowing overflow?

Posted on Nov 18, 2008

  • Lee Hodgson
    Lee Hodgson Nov 18, 2008

    ahhhh the overflow cap/bung is missing :)

    regards


  • Lee Hodgson
    Lee Hodgson Nov 18, 2008

    i always thought that these "manufactured holes" were to test the water temperature, could be wrong but is not conceivable that there might be a "plug" for this hole?

    regards


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