Jayco RV Owners Forum
 


Reply
 
Thread Tools Display Modes
 
Old 08-18-2015, 07:14 PM   #11
Senior Member
 
Scoutr2's Avatar
 
Join Date: Mar 2015
Location: Bartonville
Posts: 509
A couple things you might try or check:

The water heater could have an air bubble. Turn it off and let it cool down. Then go out and open the pressure relief valve (with the pump ON). That is located at the top of the tank and will burp out any air, if there is any.

I had a similar problem on my previous TT. It turned out that the check valve behind the city water inlet (where you hook up the hose) was leaking a little bit, and the pump would cycle for a couple seconds every 5-10 minutes. Those check valves are plastic and sometimes have a flaw in the valve seat or the check stem. Sometimes a piece of debris gets caught in it, preventing a tight seating. And sometimes the return spring can get awry, doing the same thing. Try pushing in on the stem a couple times (after carefully removing the screen from the threaded connector). Stand off to the side, because it will squirt water out at you. (You should also do this when you winterize, too, to ensure the antifreeze fills that short hose between the pump and the city water inlet.)

The only other thing I can think of beside these and the other stuff people have suggested, is the pump pressure switch is adjusted right on the edge. The dealer might be able to help you on this one.

Hope I helped!

Mike
__________________

__________________

Scoutr2 (Mike)
2015 Jay Flight 32RLDS Elite
2012 Chevy 2500HD Crew Cab LTZ (6.6L Duramax/Allison)
Equalizer Hitch (1200# bars)
Scoutr2 is offline   Reply With Quote
Old 08-18-2015, 08:05 PM   #12
Senior Member
 
Join Date: Feb 2015
Location: Phoenix
Posts: 263
Yes thank you very much! I will check out and report back
__________________

__________________
2018 Jayco 34RSBS
2015 Ram 2500 Big Horn Cummins Diesel 4x4
19xx Beautiful Wife
2 x Golden Retrievers
dangerdave is offline   Reply With Quote
Old 08-18-2015, 08:57 PM   #13
Senior Member
 
Join Date: Feb 2015
Location: Phoenix
Posts: 263
Unbelievable!!!!

Scoutr2.....YOU SIR are a steely eyed missile man.

I went outside to the city water connection, carefully removed the little screen, pressed the little white check valve, got sprayed in the face just as you indicated, and PRESTO....the cycling has stopped!

Thank you...... and to everyone who was so helpful.

I hope to someday answer questions for people as well.
__________________
2018 Jayco 34RSBS
2015 Ram 2500 Big Horn Cummins Diesel 4x4
19xx Beautiful Wife
2 x Golden Retrievers
dangerdave is offline   Reply With Quote
Old 08-18-2015, 09:20 PM   #14
Senior Member
 
Scoutr2's Avatar
 
Join Date: Mar 2015
Location: Bartonville
Posts: 509
Glad I could help. I know that drove me nuts until I figured it out! LOL!
__________________

Scoutr2 (Mike)
2015 Jay Flight 32RLDS Elite
2012 Chevy 2500HD Crew Cab LTZ (6.6L Duramax/Allison)
Equalizer Hitch (1200# bars)
Scoutr2 is offline   Reply With Quote
Old 08-18-2015, 10:58 PM   #15
Senior Member
 
Jagiven's Avatar
 
Join Date: May 2012
Location: Minnesota
Posts: 4,114
Quote:
Originally Posted by Camper_bob View Post
Air doesn't compress like water and could cause cycling like that? Just a thought ...

That is backwards. Air is compressible, and water is not.


We have had this happen a few times. We currently have a low point drain that is dripping a little. Our low point drains are under the bathroom sink. It is not uncommon for a little construction debris to be in the water lines. If it get stuck in the valve it will cause leakage.

We had a thumb screw connection for one of our supply lines to a sinks that was just a little loose. Easy fix.

We had a warranty repair, the screen filter housing between the pump and FW tankwas full of spider Web fractures. The fractures allowed air into the housing, but water could did not escape.
Jagiven is offline   Reply With Quote
Old 08-19-2015, 06:50 AM   #16
Senior Member
 
mike837go's Avatar
 
Join Date: May 2015
Location: Campbell Hall
Posts: 2,837
The pump will cycle as the water in the water heater cools down. Several times over 3 to 4 hours. I've noticed that my pump will cycle (under 2 seconds) about 10 to 15 seconds AFTER I've shut off a faucet.


I read the manual on these new 'bypass' pumps and I am not pleased with the added complexity just to provide a smoother water flow.
__________________
TT 2015 19RD "TheJayco"
TV 2003 F-350 "Montblanc" - Housebroken chore truck


Sitting in The Cheap Seats.
And proud of it!
mike837go is offline   Reply With Quote
Old 08-19-2015, 07:20 AM   #17
Site Team
 
norty1's Avatar
 
Join Date: Jan 2011
Location: Charleston, SC
Posts: 12,066
Quote:
Originally Posted by dangerdave View Post
Sorry one more thing. I have had the A/C running and there's water coming off the left front of the roof....I'm assuming that's condensation. I just thought I'd mention that however.
The condensate drain on the air conditioner will run off the roof at the lowest point, not a problem. The question persists, how is it running if you are dry camped?
__________________
Moderator
2011 351RLTS Eagle, Mor/Ryde suspension & pin box
06 F350 Lariat PSD, SRW, LB, CC, EGR delete kit, 16K DrawTite hitch, Timbrens, TST TPMS

Can't find what you're looking on JOF? Try:Jayco Owners Forum Custom Google Search
"It's easier to fool people than to convince them that they have been fooled." - Mark Twain
norty1 is offline   Reply With Quote
Old 08-19-2015, 08:11 AM   #18
Senior Member
 
silverark's Avatar
 
Join Date: May 2014
Location: Missouri
Posts: 222
I also had the FW pump cycling occasionally. After having the city water connection used on a trip it got more often. I had no leaks. I did some research and decided to check the pump. I removed the pump head and found the internal check valve stuck. Just touched it and it snapped closed. Put back together and have had no problems. It even runs quieter.
__________________
2015 Jayco Jayflight 24FBS
2013 F150 Super Crew 3.5, 3:31
2004 f150 Super Crew 5.4, 3:73 traded
silverark is offline   Reply With Quote
Old 08-19-2015, 08:50 AM   #19
Senior Member
 
Join Date: Sep 2013
Location: South Texas
Posts: 4,190
Quote:
Originally Posted by Jagiven View Post
That is backwards. Air is compressible, and water is not.


snip ...
I see where I screwed up. I meant to say that their compression properties are dissimilar. What I meant to say was that air will compress more readily than water. If you have air in the system, the pump will keep trying to compress it to get to the specified system pressure. If there's a lot of air, the pump will run a lot, if there's just a little air, it will expand and contract quickly, causing the pump to cycle periodically.

That was my theory anyway. I'm glad OP found the problem, and I've added that knowledge to my own "database" for if/when it happens to me.
__________________


2014 Jay Flight 28 BHBE
2015 RAM 2500 6.4L HEMI, Tradesman 4x4, 3.73
Blue Ox SwayPro (BXW 1503)

Upgraded from an REI internal frame backpack and a Eureka 1/2 dome tent!
Camper_bob is offline   Reply With Quote
Old 08-19-2015, 01:19 PM   #20
Senior Member
 
cekkk's Avatar
 
Join Date: Nov 2010
Location: Murrieta
Posts: 2,421
I may have missed an answer to your question about leaving the water heater on. If you have shore power leave it on electric. I'm not sure what dry campers do when using propane. Either way, make darn sure your WH tank is full before you turn the heater on. I forgot to switch from bypass after dewinterizing one year and fried the heating element.

And the roof drip would be from the ac, no problem.
__________________

__________________
'11 Eagle 320RLDS
'02 F350 PSD Dually 4WD
DW's Ride, '13 Expedition
cekkk 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


» Virginia State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 11:26 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.