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04-19-2023, 03:24 PM
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#1
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Junior Member
Join Date: Mar 2022
Location: Chino
Posts: 23
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'21 28.5 RSTS Hot water pressure
Hello all,
Took FW out for first run of the season.
Figured I'd sanitize my tank and system at the park.
After sanitizing system I lost hot water pressure.
I was hooked up to park water. 30psi. Cold water pressure is normal, hot is just a trickle at all faucets. WP same thing.
Did some searching and seems to be hot water heater (Suburban 6 gal) one-way check valve??
Seems common problem on Jayco HT's?
One video the guy released incoming pressure, opened all faucets then left one open and slowly opened city water. He gained back most hot water pressure.
I tried it and got back maybe 1/3. Enough to get us through the trip.
Any thoughts??
Also I don't see any access to back of water heater.
TIA!
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04-19-2023, 05:54 PM
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#2
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Site Team
Join Date: Apr 2012
Location: Newark, NY
Posts: 15,964
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There might be a challenge to get to the suspect check valve on the rear of the water heater, but there's a slim possibility there's debris in the faucet screen that'll block the flow. Just something to check if you haven't already. The check valve will definitely give that symptom also. They're readily available at dealers, big box stores and Amazon too.
https://www.amazon.com/Valterra-P234.../dp/B00HJ6P0Z8
At Home Depot:
https://www.homedepot.com/p/Valterra...15LF/309589109
__________________
Moderator
Think you're too old to cry or swear out loud...walk into your hitch in the dark.
2012 Jay Flight 19RD
2016 Ford F150 XLT 2X4 SC 3.5L Eco Max Tow
2010 Tundra TRD DBL Cab (Traded)
2 new fluffy Corgis, Bayley and Stanley
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04-20-2023, 04:12 PM
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#3
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Junior Member
Join Date: Mar 2022
Location: Chino
Posts: 23
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Quote:
Originally Posted by JFlightRisk
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Thanks.
Not the screens. Cold pressure is perfect.
I saw the check valves were inexpensive, just apparently hard to get to in this trailer. 😕
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04-23-2023, 07:07 AM
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#4
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Junior Member
Join Date: Apr 2023
Location: ROLLA
Posts: 5
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Lose hot water pressure
I have a '22 Jayco Eagle HT28 and am having something similar. I'm on my fifth camping trip so everything is new. I have good hot water for a couple of minutes and then it loses pressure. Cold is strong. Hot goes to a trickle. All faucets. I shut the hot off for a few minutes and get pressure back, but just for a bit and then it goes to a trickle.
I've seen a couple videos that it's the check valve. Thoughts?
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04-23-2023, 07:11 AM
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#5
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Senior Member
Join Date: Jun 2016
Location: Newburgh
Posts: 6,307
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Both problems here sound like the check valve. I am not familiar enough with the layout to provide info on how to access it though.
__________________
2022 33RBTS
Progressive Industries EMS - Hardwired
Equalizer 4 Point WDH
2021 Ford F350 7.3
Air Lift Rear Bags w/ On Board Compressor (Pending)
2016 28BHBE - (Traded and Missed already)
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04-23-2023, 07:15 AM
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#6
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Junior Member
Join Date: Apr 2023
Location: ROLLA
Posts: 5
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Thanks. I've been underneath where the HW tank is so I'll do a little more investigating to find the check valve.
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04-23-2023, 08:49 AM
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#7
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Junior Member
Join Date: Mar 2022
Location: Chino
Posts: 23
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Quote:
Originally Posted by Pilot5311
Thanks. I've been underneath where the HW tank is so I'll do a little more investigating to find the check valve.
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Pilot5311, sounds like we have the same issue. I've been under my trailer beneath WH and see no access short of removing or cutting underbelly cover. Then I still don't know it there is sufficient access to WH. I haven't been to my dealer yet, don't know if I want too.
If you discover anything please let me know. TIA
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04-23-2023, 11:18 AM
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#8
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Junior Member
Join Date: Apr 2023
Location: ROLLA
Posts: 5
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Will do. I won't have time to work on mine for a couple days. When I do and if I find anything I'll let u know.
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04-23-2023, 11:32 AM
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#9
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Senior Member
Join Date: Apr 2023
Location: Boston
Posts: 130
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Could you turn on the bypass for the water heater tank (like when winterizing) and therefore narrow the source?
Take my comment with a grain of salt but throwing it out there.
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04-23-2023, 02:29 PM
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#10
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Senior Member
Join Date: Mar 2018
Location: Boiling Springs
Posts: 533
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Check valve located in the rat nest of plumbing behind your water heater or water control panel. Follow the inlet plumbing from your water heater and you will see it.
__________________
RipinSC
2019 Eagle FW 321RSTS
2015 GMC 2500 HD 6.0 Gas
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04-23-2023, 06:57 PM
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#11
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Junior Member
Join Date: Apr 2023
Location: ROLLA
Posts: 5
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Thanks, all, for the ideas. Gives me some direction.
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05-02-2023, 10:23 AM
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#12
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Junior Member
Join Date: Mar 2022
Location: Chino
Posts: 23
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Quote:
Originally Posted by Chino
Hello all,
Took FW out for first run of the season.
Figured I'd sanitize my tank and system at the park.
After sanitizing system I lost hot water pressure.
I was hooked up to park water. 30psi. Cold water pressure is normal, hot is just a trickle at all faucets. WP same thing.
Did some searching and seems to be hot water heater (Suburban 6 gal) one-way check valve??
Seems common problem on Jayco HT's?
One video the guy released incoming pressure, opened all faucets then left one open and slowly opened city water. He gained back most hot water pressure.
I tried it and got back maybe 1/3. Enough to get us through the trip.
Any thoughts??
Also I don't see any access to back of water heater.
TIA!
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Took another trip. No repairs attempted.
Hot water pressure was completely normal. 4 days camping.
Go figure.....
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05-02-2023, 10:52 AM
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#13
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Junior Member
Join Date: Apr 2023
Location: ROLLA
Posts: 5
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I've only had this camper a few months, made some rookie errors. Went to dealer. He said really unlikely its check valve. More likely the bypass valve. I went home, hooked it up to hose, flipped the bypass valve back and forth a few times. THEN (here's the rookie mistake) I opened up the hot water valves inside the RV and let the air out. I think (not positive) I had an air lock in the lines. I wasn't patient enough to let the lines blow out fully after initial hookup. Now I've got good pressure both hot and cold.
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05-03-2023, 12:22 PM
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#14
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Senior Member
Join Date: Oct 2021
Location: Near Pittsburgh
Posts: 133
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Quote:
Originally Posted by Chino
Hello all,
Took FW out for first run of the season.
Figured I'd sanitize my tank and system at the park.
After sanitizing system I lost hot water pressure.
I was hooked up to park water. 30psi. Cold water pressure is normal, hot is just a trickle at all faucets. WP same thing.
Did some searching and seems to be hot water heater (Suburban 6 gal) one-way check valve??
Seems common problem on Jayco HT's?
One video the guy released incoming pressure, opened all faucets then left one open and slowly opened city water. He gained back most hot water pressure.
I tried it and got back maybe 1/3. Enough to get us through the trip.
Any thoughts??
Also I don't see any access to back of water heater.
TIA!
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I have a different rig (Northpoint FW), but had the same problem. I removed my check valve and screwed the water line directly into the tank. I had access to the back of the tank, so it was relatively easy. The water lines in RVs aren't very big, so they restrict flow to begin with, then the check valve inserts some plastic bits into the opening that restricts the flow even more, then, if the check valve fails and sticks closed or partially closed, you get minimal water flow.
So, I just removed mine. I guess it serves a purpose, but I haven't seen any bad things happen because mine has been removed, and that was over a year ago. If you don't feel comfortable just removing it without replacing it over the long term, you can still do it short term until you get a new one. Again, I didn't see any problems as a result of having mine removed.
If you replace it, see if there is a version that is better quality than the ones that come with the heater, otherwise you will probably be replacing it again in the future.
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05-03-2023, 03:55 PM
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#15
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Senior Member
Join Date: Dec 2019
Location: Fort Worth
Posts: 523
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Quote:
Originally Posted by Chino
Took another trip. No repairs attempted.
Hot water pressure was completely normal. 4 days camping.
Go figure.....
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Ahhhhh.... a gift!
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05-10-2023, 02:11 AM
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#16
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Member
Join Date: Sep 2019
Location: Cambridge
Posts: 92
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Had the exact same issue with our 2020 28.5rsts right from the factor. Found that the plastic one way value had been over tightened and had distorted which wasn't allowing the valve to move freely. Replaced the plastic one with the Valterra brass one and never had an issue after that.
If you winterize your RV I would not recommend not having the check valve installed. This is what stops the winterizing antifreeze from entering the tank at that line.
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04-17-2024, 04:20 PM
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#17
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Junior Member
Join Date: Sep 2022
Location: two harbors
Posts: 9
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I have the same issue with zero hot water pressure on city water in some cases (I think low city pressures). I purchased the Valterra valve ... where is the one to replace located on the tank? top, bottom? (I believe there are 2 check valves).
tia
_mark
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04-17-2024, 06:02 PM
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#18
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Site Team
Join Date: Apr 2012
Location: Newark, NY
Posts: 15,964
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The check valve for the hot line will be the top one. Cold flows in from the bottom one, and what looks like a check valve down there is probably a straight through plastic fitting.
__________________
Moderator
Think you're too old to cry or swear out loud...walk into your hitch in the dark.
2012 Jay Flight 19RD
2016 Ford F150 XLT 2X4 SC 3.5L Eco Max Tow
2010 Tundra TRD DBL Cab (Traded)
2 new fluffy Corgis, Bayley and Stanley
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