Go Back   iRV2 Forums > TRAVEL TRAILER, 5th WHEEL & TRUCK CAMPER FORUMS > 5th Wheel Discussion
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 09-15-2013, 04:54 PM   #1
Junior Member
 
jsunset's Avatar
 
Fleetwood Owners Club
Join Date: Nov 2012
Posts: 9
Atwood 10 Gallon Water Heater Problems

I have a Atwood Water Heater Model GE16_EXT-SP. In the past I have always drained the water heater if we were leaving for 2 weeks or more. This time we left for 3 months. I drained the heater before we left. Upon returning I refilled the water heater, purged both at the pressure relief valve and faucets inside the RV. After about 3 minutes all water stopped at all the faucets. I have drained the water heater 3 times and each time it starts out good water then all water stops at all faucets that I have opened to purge the hot water system. Yesterday, it starting working all day and during the night. This morning it all worked fine, then about mid-morning all water stopped on the hot water side all faucets. The cold water works fine with good pressure. I have replaced our pressure regulator at the faucet for shore water. I have replaced our whole house filter system. I am at a loss of what could be wrong. I am thinking maybe the mixing valve but not sure. Any ideas what I can do to fix this problem.
__________________

__________________
jsunset 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 09-15-2013, 05:05 PM   #2
Community Administrator
 
Clifftall's Avatar


 
Fleetwood Owners Club
Ford Super Duty Owner
Join Date: Aug 2009
Posts: 29,106
I think you may be on to something with the mixing valve theory.
__________________

__________________


Cliff,Tallulah and Buddy ( 1999-2012 )
Clifftall is offline   Reply With Quote
Old 09-15-2013, 05:13 PM   #3
Senior Member
 
Tony Lee's Avatar
 
Join Date: Sep 2012
Location: Peru heading for Brasilia, Brazil
Posts: 2,115
Usually a collapsed check valve at the cold water inlet to the heater. Symptoms are normal hot water flow for a few seconds and then almost no flow. Turn off the tap and wait for a while and the same thing happens. Reason is that some water is getting past the check valve and that pressurises the air space (acts like an accumulator) so you get a surge until the airspace expands and then only whatever trickle is getting past the valve.
You would likely get the same symptom is you opened the safety relief valve - surge and then a trickle.

If yours has the inbuilt mixing valve then of course that could be the problem although normally they are designed to fail safe and only allow cold water to pass if something goes wrong
Perhaps the check valve I referred to is supplying both the cold water into the heater and the cold mix water to the tempering valve
__________________
Tony Lee - International Grey Nomad. Picasa Album - Travel Map
RVs. USA - Airstream Cutter; in Australia - MC8 40' DIY Coach conversion & OKA 4x4 MH; in Germany - Hobby Class C; in S America - F350 with 2500 10.6 Bigfoot camper
Tony Lee is offline   Reply With Quote
Old 09-15-2013, 05:20 PM   #4
Community Administrator
 
Clifftall's Avatar


 
Fleetwood Owners Club
Ford Super Duty Owner
Join Date: Aug 2009
Posts: 29,106
My Atwood has a check valve on the hot water out but not on the cold water in.
__________________


Cliff,Tallulah and Buddy ( 1999-2012 )
Clifftall is offline   Reply With Quote
Old 09-15-2013, 05:25 PM   #5
Senior Member
 
Join Date: Nov 2005
Posts: 3,332
You could very likely have a check valve on both the inlet and the outlet. The one in our Winnebago Adventurer does. The one on the outlet side prevents cold water from entering the water heater when just the cold is turned on at a faucet. The one on the inlet side prevents hot water from being pushed back into the fresh water tank.
__________________
Hikerdogs
2013 Adventurer 32H
Hikerdogs is offline   Reply With Quote
Old 09-15-2013, 05:54 PM   #6
Senior Member
 
Tony Lee's Avatar
 
Join Date: Sep 2012
Location: Peru heading for Brasilia, Brazil
Posts: 2,115
Yes, can be both hot and cold check valves although the symptoms will vary.

If on the outlet then flow of hot will (usually) always be a trickle, but will be normal if you open the safety relief valve. If it is the inlet valve that has collapsed then flow will be a gush and then a trickle when either a tap or the safety valve is opened.
__________________
Tony Lee - International Grey Nomad. Picasa Album - Travel Map
RVs. USA - Airstream Cutter; in Australia - MC8 40' DIY Coach conversion & OKA 4x4 MH; in Germany - Hobby Class C; in S America - F350 with 2500 10.6 Bigfoot camper
Tony Lee is offline   Reply With Quote
Old 09-15-2013, 08:56 PM   #7
Junior Member
 
jsunset's Avatar
 
Fleetwood Owners Club
Join Date: Nov 2012
Posts: 9
Thank all of you for responding to my Atwood water heater problem. I found a bad check valve on the hot water outlet. When replaced, we now have hot water in all faucets. Its tough to get to the back of the heater to replace it but worth doing it myself to save a service call. Thanks again Tony, your a lifesaver.
__________________
jsunset is offline   Reply With Quote
Old 09-15-2013, 09:00 PM   #8
Senior Member
 
Mr_D's Avatar
 
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 28,382
Ac cording to the pundits in the magazines you are not supposed to open the pressure relief valve and allow the tank to fill totally with water. You are supposed to have the valve closed. That leaves the air in place to allow for a cushion.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
Mr_D is offline   Reply With Quote
Old 09-16-2013, 03:55 AM   #9
Community Administrator
 
Clifftall's Avatar


 
Fleetwood Owners Club
Ford Super Duty Owner
Join Date: Aug 2009
Posts: 29,106
Thanks for the update. Glad you found and fixed it.
__________________


Cliff,Tallulah and Buddy ( 1999-2012 )
Clifftall is offline   Reply With Quote
Old 09-20-2013, 11:26 AM   #10
Junior Member
 
Join Date: Aug 2013
Posts: 19
Another thing is if that safety valve on the hot water tank starts dripping don't replace it. Drain the tank and refill it and that will leave an air space in the top of the tank and the safety valve will not leak. Another thing I have that attaches to a hose is a little thing I think I bought at Camping World that you can take out the tank drain plug and rinse out the inside of the tank with.
__________________
Frankwh is offline   Reply With Quote
Old 09-20-2013, 03:00 PM   #11
Junior Member
 
Join Date: Mar 2012
Posts: 3
I may as well share an experience I had one spring. I was getting ready to go camping. I hooked up the water and I proceeded to flush the winter antifreeze out. It started out fine and then I barely got a dribble out of each tap, hot or cold. I finally remembered that the previous fall I had put a water bottle in the water filter container so I would not waste antifreeze. The water bottle would float to the top of the container for the water filter and it actually plugged the water outlet from the filter. It was one of my dumb ideas. BTW, I had previously tried the plate and O ring so antifreeze would not go into the filter container. But, it leaked so I gave up on that.
__________________

__________________
rasum is offline   Reply With Quote
Reply

Tags
atwood, heater, water, water heater



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


» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:11 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.