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04-05-2020, 10:21 AM
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#1
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New Member
Join Date: May 2019
Location: East Waterford
Posts: 6
M.O.C. #24118
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How to access water heater check valve
2008 Keystone montana 3400 RL
Pretty sure I have a problem with the check valve as there is no pressure on the hot water but good pressure on the cold. Also when water heater bypass is on, get plenty of pressure on the hot water side. But in this 5th wheel I see no obvious way to access the back of the water heater from the inside to get at the check valve. What am I missing?
Thanks in Advance
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04-05-2020, 12:18 PM
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#2
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New Member
Join Date: May 2019
Location: East Waterford
Posts: 6
M.O.C. #24118
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How to access water heater check valve
#13
Treesehome
New Member
Join Date: May 2019
Location: East Waterford
Posts: 4
M.O.C. #24118
We have a 2008 Keystone montana 3400 RL and I have a check valve issue on the water heater but so far have not found a way to access the back of the water heater from the inside. Anyone know what I am missing?
Thanks in Advance
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04-05-2020, 01:18 PM
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#3
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Montana Master
Join Date: Jun 2018
Location: Folsom, California
Posts: 552
M.O.C. #21903
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Either get to the back of the water heater via the access panel to the left of the oven or through the grille in the cabinet on the left when you enter the rig.
Ours got stuck closed and had exact symptoms as you. I just removed ours.
__________________
'05 F250 6.0 Bullet Proofed - Sold
'17 F350 6.7 Lariet
'02 Montana 3280RL Upgraded a bunch.
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04-05-2020, 01:37 PM
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#4
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Montana Fan
Join Date: Aug 2012
Location: Fowler
Posts: 414
M.O.C. #12748
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Quote:
Originally Posted by Hblick48
Either get to the back of the water heater via the access panel to the left of the oven or through the grille in the cabinet on the left when you enter the rig.
Ours got stuck closed and had exact symptoms as you. I just removed ours.
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I removed mine also but plan to replace it as it is needed to properly winterize the trailer. With it removed, you will need an extra 12 gallons of antifreeze as it is there to prevent backflow into the waterheater.
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04-05-2020, 02:17 PM
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#5
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Montana Master
Join Date: May 2017
Location: new caney
Posts: 1,050
M.O.C. #19873
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Quote:
Originally Posted by rmthelen
I removed mine also but plan to replace it as it is needed to properly winterize the trailer. With it removed, you will need an extra 12 gallons of antifreeze as it is there to prevent backflow into the waterheater.
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How many gallons?
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04-05-2020, 04:39 PM
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#6
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,692
M.O.C. #12947
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I’m not sure on a 2008 3400, but on our 2012 3402, I am able to access the back end of the water heater by removing the plastic panel that covers the area behind the convenience center. To get my body close enough I had to remove a lot of stuff from the pass through storage area. I had to do this in 2016 when I replaced our water heater due to the tank leaking. If you can access yours this way, you will need a large wrench to break the check valve loose. Our check valve is brass, and I was able to reuse it on the new water heater. Make sure you use pipe dope or Teflon tape on the new one and don’t be afraid to really tighten it when installing it.
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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04-05-2020, 04:46 PM
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#7
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Montana Fan
Join Date: Aug 2012
Location: Fowler
Posts: 414
M.O.C. #12748
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Quote:
Originally Posted by Texan
How many gallons?
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12 Twelve, the water heater in ours is 12 gallon.
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04-05-2020, 05:47 PM
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#8
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Montana Master
Join Date: Jun 2018
Location: Folsom, California
Posts: 552
M.O.C. #21903
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Quote:
Originally Posted by rmthelen
I removed mine also but plan to replace it as it is needed to properly winterize the trailer. With it removed, you will need an extra 12 gallons of antifreeze as it is there to prevent backflow into the waterheater.
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I'm lucky. Where I live I never have to winterize my rig. Couldn't figure out any reason to replace it.
__________________
'05 F250 6.0 Bullet Proofed - Sold
'17 F350 6.7 Lariet
'02 Montana 3280RL Upgraded a bunch.
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04-06-2020, 11:57 AM
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#9
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Seasoned Camper
Join Date: Mar 2010
Location: Monument
Posts: 68
M.O.C. #10239
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On my 2006 3400RL there is an access panel inside the cabinet that is just to the right of the fireplace. It's the cabinet under the counter that faces the living room.
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04-07-2020, 11:16 AM
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#10
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Montana Fan
Join Date: Nov 2004
Location: Hudson
Posts: 480
M.O.C. #2446
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Quote:
Originally Posted by Treesehome
2008 Keystone montana 3400 RL
Pretty sure I have a problem with the check valve as there is no pressure on the hot water but good pressure on the cold. Also when water heater bypass is on, get plenty of pressure on the hot water side. But in this 5th wheel I see no obvious way to access the back of the water heater from the inside to get at the check valve. What am I missing?
Thanks in Advance
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similar symptoms. Except shortly after the whole thing (water heater) sprung a leak. I ordered a new one on amazon. The worst part of the job was hooking up the wiring. IF it were 6 or 8 inches longer it would of been an easier job. But my Montana is older and it is located under the lazy susan, next to the pull out draws in the kitchen. I still could not fit into the space provided and I did most of it sideways. Not cheap about $500 with self install. The only concern I had was making sure there were no propane leaks.
The check valve is located and mounted on the top hose connection. Just looks like a pipe nipple with a hex head for a wrench.
__________________
Chris Donna and Oliver the rescue Dog.
Old 3255RL It is a weekend warrior and less than 15K miles. Mostly sits at the house. Home is where the heart is.
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04-12-2020, 07:59 PM
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#11
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New Member
Join Date: May 2019
Location: East Waterford
Posts: 6
M.O.C. #24118
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Thanks to all responses. Found the inside panels to remove and have good access to the back of the water heater. Now just need to get a BIG wrench to remove the check valve as it would not budge with any wrench I have. Helped to measure from the outside from edge of window to center of the water heater and then the same on the inside to confirm where it had to be. Appreciate the help!
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04-12-2020, 10:26 PM
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#12
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Montana Master
Join Date: Feb 2005
Location: Haysville
Posts: 4,261
M.O.C. #3085
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I really don't think the check valve has anything to do with winterizing and keeping antifreeze out of the hot water heater. The bypass valves inline and in-between the top and bottom HWH lines are what isolates the HWH from filling with antifreeze. When I got rid of my check valve, I noticed I no longer got the cold water shocker when I turned off the shower to soap up and then back on.
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04-15-2020, 01:35 PM
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#13
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Montana Master
Join Date: May 2007
Location: Montgomery
Posts: 502
M.O.C. #7196
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My Check Valve failed. Replacement was cost more than I thought it was worth, so per some advice I just removed the "check" plastic.
I think its just there for liquid winterizing, which I never do other than the sink, shower drains (I let the low point drains and empty the WH when it gets cold in AL....)
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04-15-2020, 01:45 PM
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#14
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Seasoned Camper
Join Date: Jun 2018
Location: Estherville
Posts: 53
M.O.C. #21904
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The check valve prevents anti-freeze from filling the water heater when the winterizing valve is activated.
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04-15-2020, 04:12 PM
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#15
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Montana Fan
Join Date: Feb 2014
Location: Chico
Posts: 269
M.O.C. #14041
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Quote:
Originally Posted by coyoterick
On my 2006 3400RL there is an access panel inside the cabinet that is just to the right of the fireplace. It's the cabinet under the counter that faces the living room.
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My 2009 has this same panel.
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04-15-2020, 06:31 PM
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#16
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Established Member
Join Date: Oct 2019
Location: Livingston
Posts: 40
M.O.C. #25043
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hope to help
There is a hot water bypass at your main hook-up panel. Check valve is not needed for winterizering as you would NOT want antifreeze in the tank.
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