Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 12-25-2022, 09:23 AM   #15
Senior Member
 
Old-Biscuit's Avatar
 
Join Date: Nov 2015
Posts: 25,545
Quote:
Originally Posted by Lyon View Post
I removed the mechanism and replaced with a PEX T connecting the water inlet to the other two hoses with a shutoff valve on each. It turns out that I did not solve the problem. The hot water only runs for a couple of minutes before it turns cold again. I am not sure at this point if the problem is with the valve settings or if I have additional problems at the hot water heater.
Turning COLD ..........cold water is diluting the HOT coming from water heater

Problem at water heater...that would be NO FLOW not hot turning to cold

The hot out branched off PRIOR to that bypass device
So cold to/from it should go to cold plumbing and the shutoff valve for HOT side of the Bypass should be closed so cold does not go back into hot side
__________________
I took my Medication today. HAVE YOU?
Dodge 3500 w/Tractor Motor
US NAVY---USS Decatur DDG-31
Old-Biscuit is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 12-26-2022, 07:11 AM   #16
Senior Member
 
nehog's Avatar
 
Nor'easters Club
Holiday Rambler Owners Club
Join Date: Oct 2016
Location: Monadnock Region of New Hampshire
Posts: 1,519
Quote:
Originally Posted by Lyon View Post
I... The hot water only runs for a couple of minutes before it turns cold again. ...


There is a check valve in the water heater's outlet that can fail and cause this symptom. Been there, done that. The valve is available on Amazon if this is the cause.
__________________
My name is Peter, and I'm never going to grow up.
- Winnebago Era 2010 Class B
- Holiday Rambler 2006 Ambassador 40-DFD Class A
nehog is offline   Reply With Quote
Old 12-26-2022, 12:56 PM   #17
Senior Member
 
Ray,IN's Avatar
 
Join Date: Aug 2001
Location: North America somewhere
Posts: 29,439
That looks like an old Swan Industries automatic winterizing valve. If it is you will have a 1' square plastic tank close to your water heater and water pump, there are 2 of these valves, one for bypassing the water heater, the other to change from pumping from the fresh water tank OR the square RV antifreeze tank.This Swan automatic winterizing system was an option until approx. 2010. Today replacement 12V automatic valves are over $300 ea. so converting to a manual valving system is prudent IMO.
__________________
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA." My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
Ray,IN is offline   Reply With Quote
Old 12-26-2022, 02:42 PM   #18
Senior Member
 
Ray,IN's Avatar
 
Join Date: Aug 2001
Location: North America somewhere
Posts: 29,439
MY reply timed-out, cannot edit.

The newer model of Swan indusitries winterizing system was called Prevent=a-Freeze; it has also been discontinued about 2016.. You see the new style 12V valves that replaced the first model/style that look like yours.

The reason these valves and solenoids failed is non-use, as winterizing is a once a year task normally.


No new OEM parts are available.
These 12V valves/solenoids may be disassembled and rebuilt with hardware store parts if one wishes to take the time and effort.
__________________
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA." My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
Ray,IN is offline   Reply With Quote
Old 01-30-2023, 06:58 AM   #19
Junior Member
 
Join Date: Oct 2019
Posts: 18
Thanks to everyone for their help. I bypassed with a couple of valves as suggested and have had no problems.
Lyon is offline   Reply With Quote
Reply

Tags
plumbing



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
C clip-catch-retainer-doohickey-thingamajig JeffAZ Class A Motorhome Discussions 41 03-17-2017 10:40 AM
Windshield Wiper Thingamajig?? bronk Damon 1 08-05-2016 01:52 PM
Mystery Power Burst.... Steady Eddie Workhorse and Chevrolet Chassis Motorhome Forum 17 12-16-2007 04:27 AM
Black Water Tank Burst Don Mac 5th Wheel Discussion 12 07-31-2006 10:50 AM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 01:06 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.