Reply
 
Thread Tools Display Modes
 
Old 06-17-2019, 11:24 PM   #1
Platinum Member
 
peppster66's Avatar
 
Join Date: Aug 2014
Location: Brampton,Ontario
Posts: 223
Default Expansion valve ,suburban water heater

Hi guys, when we were out on the weekend, I noticed when the hot water heater is turned on, we are getting water dripping out of the expansion valve at the top of the suburban water heater, we have not had this before, itís 20 years old,is it done, am I looking at getting a new valve?, or is there something on this I can repair?, it doesnít look easy to get out, so I thought I would ask here first before I attempted to remove it,,thanks for any help,,,,take care,,,,
__________________

peppster66 is offline   Reply With Quote
Old 06-18-2019, 12:19 AM   #2
Bronze Member
 
Join Date: Feb 2013
Posts: 20
Default

I’m no expert but I think water dripping from the pressure & temperature (P&T) relief valve is normal when there isn’t enough of an air pocket at the top of the tank, and it’s normal for the air pocket to get smaller over time. To reestablish the air pocket: turn off the water heater and water sources (pump or city water), open hot water faucet in RV, open P&T relief valve and allow water to flow out until it stops, allow the P&T relief valve to snap shut, turn off the hot water faucet, turn the water supply back on (pump or city water), turn the water heater on and heat the water. It the valve still leaks it might be bad.
__________________

jbxr7 is offline   Reply With Quote
Old 06-18-2019, 12:33 AM   #3
Platinum Member
 
peppster66's Avatar
 
Join Date: Aug 2014
Location: Brampton,Ontario
Posts: 223
Default

Thank you, I will try that, and see how it works,,,,,
peppster66 is offline   Reply With Quote
Old 06-18-2019, 03:20 AM   #4
Platinum Member
 
hepcat's Avatar
 
Join Date: Apr 2017
Location: eastern Iowa
Posts: 216
Default

Those valves do get weak... if you've gotten twenty years out of it, you have no complaints. I had to change the valve on mine last year. They're available at any hardware store in the plumbing section. Because of the way Suburban mounts it, it'll be a chore to swap it out, but you'll figure it out.
hepcat is offline   Reply With Quote
Old 06-18-2019, 01:53 PM   #5
New Member
 
Join Date: Jun 2016
Location: NORTH CAROLINA
Posts: 18
Default

I saw valve leaking; I replaced it, still leaked, decide to cheat and actually read the owners manual; it said it was normal and do what jbxr7 said; Guess I just had never noticed before.


Paul J
mck150stone is offline   Reply With Quote
Old 06-19-2019, 12:32 AM   #6
Platinum Member
 
peppster66's Avatar
 
Join Date: Aug 2014
Location: Brampton,Ontario
Posts: 223
Default

Thank you so much jbxr7, I did exactly what you said, and there is no more leaking, that saved me so much time and headaches,, , thanks again, I love this forum, everybody always seems to help with any issue,,,,,
peppster66 is offline   Reply With Quote
Old 06-19-2019, 01:58 AM   #7
Platinum Member
 
rowiebowie's Avatar
 
Join Date: Jul 2018
Location: Texas
Posts: 945
Default

Quote:
Originally Posted by peppster66 View Post
Thank you so much jbxr7, I did exactly what you said, and there is no more leaking, that saved me so much time and headaches,, , thanks again, I love this forum, everybody always seems to help with any issue,,,,,
I wholeheartedly agree. This forum is top-notch and the only reason that a mediocre handyman like myself has been able to do all my rv repairs myself. Well, this forum and youtube.
rowiebowie is offline   Reply With Quote
Old 06-23-2019, 03:57 PM   #8
Bronze Member
 
Join Date: Jul 2017
Location: IN
Posts: 48
Default

Like anything they get old and weak. They are very inexpensive so just replace it.
Brad1998RD is offline   Reply With Quote
Old 06-23-2019, 07:53 PM   #9
New Member
 
Join Date: Jun 2015
Posts: 14
Default

I worked in the heating and cooling industry my entire career, 40 years. There is not supposed to be an air gap at the top of the tank. That is for hydronic heating systems that need an expansion tank. Water heaters have no such condition. If it drips, replace it. It’s a safety device, don’t mess around.
cbrown154@me.com is offline   Reply With Quote
Old 06-24-2019, 12:51 AM   #10
New Member
 
Join Date: Oct 2016
Location: Illinois
Posts: 5
Default

I had the same experience with my 6 gl. water heater on my 1994 pleasureway. I installed a new valve, no more leaks. The bottom drain plug started leaking shortly after. I had to re-tap the drain hole threads and installed anode rod in the drain plug hole instead of just a plug.
__________________

dnnytlsn@yahoo.com is offline   Reply With Quote
Reply

Thread Tools
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


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 03:07 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.