Hello from Customer Service. I appreciate the blog comments and questions–keep them coming!
Every now and then, we get a call from a customer who wants to fix a dripping kitchen faucet. Now, we have a lot of faucets in our product offering, but one of the most popular faucets is the Coralais® kitchen sink faucet. It’s a great product, rinses a lot of spaghetti sauce off of plates, but sometimes a leak may appear. No worries, I’ll walk you through a quick fix.
Before you get started, you will need KOHLER Service Part Number GP30420, a 3/32″ hex wrench, and a half hour of free time.
Are you ready? Here we go…
- Turn off the water to your faucet and remove the plug button from the handle.
- There will be a small screw underneath the plug button. Loosen the screw to remove the handle.
- The bonnet will be the next part, looking like a dome with the top cut off. Unscrew the bonnet. It should remove easily by hand by turning counterclockwise to expose the valve and mounting nut. Remember “righty tighty, lefty loosely.”Bonnet on:
Bonnet off:
- Firmly grasp the hub and spout and pull the entire assembly up and off the body of the faucet.
- The o-rings and bearings are found around the body of the faucet. Replace the o-rings and bearings in the same order they appear on your faucet and lubricate generously with the included silicone based lubricant.
- Now, you simply slide the spout back onto the body of the faucet and reassemble the remaining pieces.
Turn the water back on, check for leaks, and start rinsing those plates. Remember, if you ever need help, you can message us on Facebook or Twitter. And you can always call us at 1-800-4KOHLER. We’d love to hear from you.
For all your service parts needs, visit our Online Parts Store.
34 Comments
I am very disappointed at the availability of Kohler parts in Canada.
Why do you not send parts to Canada via your online store. Most modern commercial enterprises, whether based in the USA, Canada or Europe do send to Canada,
I find that the parts are next to impossible to find at any hardware store
Hey Brad–this is Mark Thiel at Kohler. Sorry for the late reply–we are working out a few kinks on our end, got it up and running now. Great question! Let me pass this along to the proper team and I can get an answer for you. I’ll get back to you shortly!
Brad:
Thanks for reaching out to us. Unfortunately, at this time, we are not able to ship parts ordered on the on-line store into Canada. I understand it’s frustrating and that’s why we are working hard to make it happen in the first quarter of 2011. We have a systems issue with the on-line store that prevents us from properly pricing and tracking the orders across the border. Next year, when we update the system, we’ll also add the functionality needed to ship into Canada. Until then, please call our Customer Care Center at 1-800-4KOHLER and place an order. We are able to ship orders placed on the phone into Canada.
I appreciate your business and fully understand how frustrating it is. Trust that we’re doing everything we can to change the on-line store so you may place orders on the web.
I tried following these steps for my Coralais faucet, and I got as far as step where I’m told to firmly grasp the hub and to pull it and the spout off the faucet body. No matter what I tried, I couldn’t get it to budge. I even tried kneeling on my counter for some extra leverage. Any help is much appreciated.
Hello Matt:
So sorry to hear you are having a problem removing the hub and spout. At times they can be difficult to remove. I’ve found twisting side to side and pulling up at the same time can break the spout and hub loose. The twisting prevents the o-rings from binding and making the removal difficult. Please give the “twist and pull at the same time” a try. If that doesn’t work, please send your contact information directly to me at john.bashaw@kohler.com and I’ll make arrangements for one of our technical representatives to contact you.
We appreciate your business and realize how frustrating it is to have a leaking faucet.
I did this process this morning and it was surprisingly easy. Thanks for the simple instructions. The old, worn out O rings were causing my leak. But now, unfortunately, I have a new problem. Everything worked great for a couple of hours, then the water stopped flowing when I lifted the handle past the halfway point. It jumps and bucks like there’s air in the line or some type of pressure problem. And the spray handle doesn’t work at all. Just a little dribble out of it. Otherwise, the faucet works fine as long as I don’t open it up all the way. So, I’m not sure what I did wrong. Thanks for any ideas!
I have another problem, maybe related. When I use the spray hose and any water accidentally gerts on the hose, it runs easily through the faucet body and into the cabinet. Should there be anything to stop water entering the body when the spray hose is used?
Thank You
Hi Mundo, this is Mark at Kohler. I spoke with our customer service team, and they recommend holding your sprayhead upside down in the sink and turning on the water to make sure there isn’t a leak at the hose/sprayhead connection. This can cause water to flow down the hose. If there is a leak at the connection, send an email to kohlercustserv@kohler.com and we will look into a replacement sprayhead for you. Hope that helps–let me know if you have any questions.
Hi Mundo:
I hate when that happens, but it’s a common problem. Water runs down the hose and can drip into the cabinet. I always make sure the residual water is off the sprayhead before I put it back into the holder to prevent the water from running into the cabinet.
Thanks for your interest in our products. I’ll pass this note along to our Engineering team for them to take a look at. They may have an idea. Look for updates on this site.
I am trying to replace the valve in a Coralais kitchen faucet and the bonnet won’t budge. I have pured vinegar into it to break up any sludge but so far no luck. There’s really no way to get a grip on this beast to turn it. I have tried prying upwards but that doesn’t seem to loosen it. Any ideas?
Thanks for the pics, the instruction and diagram that came with the replacement cartridge left me wondering where the “o” ring and bearings went.
Your photo description cannot apply to a leaking 15160 because it has a spray hose in the spout! PLEASE make this point clear, it is far more relevant that talking about what a great job it does with spaghetti sause. What do I do when my 15160 leaks under the handle? The kit you recommended, GP30420 has no parts suitable to the 15160??? What parts do I need?
Thanks in advance, I know you have many wonderful products to keep track of and variations of the Coralais make it hard to keep up with. I live in a condo with 380+ of the 15160 faucets and I’m sure another will leak under the handle.
Hi Nick–this is Mark at Kohler. Sorry to hear about your leak. I notified our customer service team and they will contact you shortly to help you out. Please let me know if you have any questions. Thanks.
Well, it’s been about three weeks since I contacted you and I expect your customer service people are busy and haven’t had time to get back to me. Like most of your bloggers, we managed to fix it ourselves or have someone do it for us. I tightened the mounting nut a few degrees that evening and that seemed to work at fixing the leak. Please do take the time to adjust you D.I.Y. instructions to specify that it is for a faucet without a hose/spout, it might help your image as facilitators since I suspect the units with a hose are outselling those without.
What about another problem? We have one (possibly an older model), but unless the nozzle (and hose) are pulled out at least 6″, we get no water. We have tried over and over again to gently pull it all the way out and then feed it back in slowly, but the best we get is a dribble. This makes our sink useless for washing dishes. Please help ASAP!!
Hi FixMyFaucet–this is Mark at Kohler. I am looking into this issue with our customer service team and will get back to you as soon as possible. Thanks.
Hi FixMyFaucet–I contacted our customer service team and they informed me they are working to help you solve your issue. Please let me know if there is more I can do to help. Thanks.
I have a k-15162 with a pull out spray faucet. I have followed the instructions but i am unable to remove the spout section. It comes up a bit and then jambs on the hose. I have tried to pull the hose thru but it jambs on the end fittings. Where do I go from here.? Thanks
I called in my neighborhood plumber, the one who originally installed it and we determined that we needed to remove the whole faucet assembly. We were then able, with the help of a screwdriver, to force the spray hose thru the spout and the cartridge came out easily. However the one I have has only one o-ring and no bearings. We used one of the o-rings from the GP 30420 kit. It seemed to be about the right size, lubricated it, re-assembled and no leaks. I am just hoping that the o-ring is the correct size.
Hey Joe–sorry for the delay. It sounds like you were able to solve the problem. Is there anything more I can help with?
Mark or John:
I have a Corolais faucet that leaks about every 2 months. If i remove the handle and tighten the bonnet as hard as I can by hand it’s good for another two months. It seems that the bonnet works its way loose due to friction between the valve body and the bonnet through normal use. This happens even if I disassemble the bonnet and clean it and the valve body thoroughly and lubricate the valve body with vaseline. Is there a recommended way to prevent the bonnet from loosening? Perhaps a drop of threadlock on the bonnet threads?
Hi Stephan–this is Mark at Kohler. It sounds like you need a new valve and probably some o-rings as well. Send an email to kohlercustserv@kohler.com with the model number of your faucet and the year it was installed. Our customer service team will help you get the parts you need.
Also, I do not recommend putting Vaseline on rubber gaskets, as it many times dissolves the rubber and causes leaks. I’d recommend silicone lubricant (plumbers grease).
Hope this helps–let me know if there’s more I can do.
I am really frustrated. I have had a Coralais single-handle shower faucet which was put in by my builder about 12 years ago. For as long as I can remember it has dripped (I just put a bucket under it). I finally got motivated to do a repair, Kohler sent me the replacement parts. I took off the cap, flange and pulled out the body, then put the o-rings in the new body, reinserted it, put the cap and flange back on and tightened things down (well, actually, there was a problem in that the replacement screws were a bit short, I couldn’t get them to bite, so I used the old screws, which were a bit longer). But the d***n thing still drips! What’s odd is that I thought I hadn’t tightened the screws enough but when I turned them some more it seemed the drip got a bit worse (sort of like “squeezing” the water out); I backed off somewhat but the drip, while less frequent, is still there. I don’t know whether I’m supposed to back off more, tighten more, or not. But I went through a very careful procedure to turn off the water and replace the faucet and it STILL leaks. My plumber said that Kohler faucets are “known to drip” but I don’t want to believe that. Is there a number I’m supposed to torque to cap screws to? Thanks for any info.
I have a Kohler Kitcher Faucet. Number K-15162. K-15162M. The hose has been leaking for a couple of months and now it sprays everywhere so I am unable to use it. I ordered the hose part from our local hardware store a couple of months ago but they said it is on back order from the factory. My paper work states I have a Lifetime Warranty on faucets manufactured after Jan 1, 1997. We built my home in 2003. It is very inconvenient doing dishes in the bathtub. What can you do to help me out?
After reading this blog, we decided to call Kohler for a broken valve that is causing our faucet to leak. The customer service was excellent. The parts will be shipped in 5 days, free of charge no questions asked. Now whether we will be able to fix it without the help of a plumber remains to be seen!
I am confused. I don’t believe the large O rings have anything to do with a leaky faucet. I replaced these O rings about a year ago when the swivel seized up. The O rings were completely disintegrated but I did not have a leak. As far as I can tell these O rings keep water that might get from your wet hands into the swivel and keep any water that makes its way down the hose from getting into the cabinet below. My new problem (a year later) is that when the faucet is on water is spurting out of the top of the faucet. I am pretty sure that these directions should focus on replacing the white plastic valve mechanism not the O rings. What is the part number for the white plastic part? What additional steps do I follow once I get the bonnet off?
Hey A1Penguin — this is Mark at Kohler. I think there may be some confusion between the Coralais model referenced in this blog post and the model you have at home. I apologize for the confusion. Because you have a hose and sprayhead, I believe you have a pull-out like this K-15160. In this case, you’ll need GP77548 and possibly 1108711. Hope this helps–please let me know if you have any further questions or would like more assistance. Thanks!
Hi Mark. Thank you for the info. You are right about my faucet model and you were correct about the 1108711 part. There was some debris stuck in the spring loaded plunger like thing in the back of it. When I cleaned it out, the leak stopped. Unfortunately I figured this out after replacing the GP77548, but now I have a spare on hand.
In my earlier post I said I had a problem getting the bonnet off. The bonnet came off fine. It was the spout and the body that I could not get off and wound up with a crushed hose. Sorry for the confusion.
Glad to find this useful page. I’m getting stuck right at the first step: how am I supposed to remove that little plug button?! It’s chrome, very slippery, and I can’t seem to get any leverage on it (tried my leatherman to wedge it out). Any tips on getting that slippery thing out would be greatly appreciated.
Hi Mark, thanks for your offer of help. A few minutes after my original post, I just decided I was going to get that plug out one way or another, and tried the tiny screw-driver on my leatherman which did the job! As it happens, I think I had just been too timid in my previous attempts, since it did pop out without obvious damage.
Hi Frank–this is Mark Thiel at Kohler. The plug button should pull out. It has little tabs that hold it into place, so prying it off is the way to go. Let me know how it goes–we would be happy to send you a new plug button if the tabs break as you try to remove it.
Hey Steven–this is Mark at Kohler. I wanted to follow up on your comment. Were you able to fix the leak?
Hi Scott–I spoke with our customer service team and they informed me that they are working with you to help you resolve this. Please let me know if there’s more I can do to help.