Running faucet

kC7

Member
2024 Highlander Trail Runner Kitchen faucet continues to run with cold and hot knobs both turned off. Just started over night (woke up to this) only way it stops is with city water cut off
 

cookie

Administrator
Staff member
It sounds like you need a new faucet. I've yet to find an OEM faucet that can be repaired.
Since your rig is a 2024 model is it still under warranty?
With your VIN in hand call Heartland Customer Service. Maybe you can sweet talk them to send a goodwill replacement.
Oh, I almost forgot, are you using a water pressure regulator? If not that could be the problem.

Peace
Dave
 

kC7

Member
It sounds like you need a new faucet. I've yet to find an OEM faucet that can be repaired.
Since your rig is a 2024 model is it still under warranty?
With your VIN in hand call Heartland Customer Service. Maybe you can sweet talk them to send a goodwill replacement.
Oh, I almost forgot, are you using a water pressure regulator? If not that could be the problem.

Peace
Dave
Yes using regulator 28 PSI. Calling dealership in the AM for warranty replacement (only had RV 4 months) now oven pilot light don’t work 😣.
 

taskswap

Well-known member
Just a thought. Both the bathroom and kitchen faucets in our Milestone 386BH (2021) are either Delta or a delta-rebrand cartridge-style faucets. They're cheap, but very easy to service. You can identify them by removing the handle, and seeing if you see a cartridge inside. With the water shut off, you can get a wrench on there and remove the cartridge and see what's going on.

If this is the style you have, the "sealing" is done with a black rubber or viton bushing that's pressed against the smooth bottom metal face of the cartridge by a spring. What happens with these units is no matter how smooth the cartridge is, it still has a bit of a lip where the bottom holes are, and over many on/off cycles these tear up the bushings. Usually you can feel a bit of roughness on the face of the seal and that's what lets water get by.

You almost never need to replace the whole cartridge. Usually you just need to replace the "seat" (small black cup-shaped bit):

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This may not be your style, but I'm mentioning it because it's really easy to identify them once you know how, and these parts are available in nearly every hardware store. Just bring your current cartridge and seals in because they vary slightly in size.

If you do determine that this is your style, you can get 10-packs on Amazon for <$15 and always have seals on hand for the next time. Interestingly, our Thetford toilet also uses the same system. They sell their own service kit (our toilet started running constantly the same way a few months ago) but it's the same parts. It's becoming a common system now across a lot of brands so it may be worth a look. Check this out, this is the service kit for our toilet:


Now compare that to the 10-pk spring/seat kit for our faucets:


The seals and springs are identical in both.

If this is what you have and you do a DIY replacement, get a small tube of plumber's silicone grease. You're supposed to apply a small dab to each seal when you replace them. It only takes a tiny bit - one tube will last your whole life.
 
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