Skip to main content ↑ ↓
Topic: leak help (Read 563 times) previous topic - next topic

leak help

I have a 1998 34'U270 and when I turn on water pump one can see water running down behind water heater. I checked the fitting into the back of heater and no leak. My next procedure will be to hook up shore water and see if it leaks then.
Is there access to the backside of water heater through the  utility compartment? I dread removing the water heater.
I would rather remove the panels in that compartment if it will gain my access. I think the pex has split but will not know till I hook up water.
Any one have pictures of the plumbing bay panel removal? Thank you John
John
1998 U270 34'

Re: leak help

Reply #1 –
John,

Be sure to DRY any water in that compartment, as it will leak down to the REAR BULKHEAD AREA!
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: leak help

Reply #2 –
Look for a post from Chuck (chuck&jeanie) shows how to make an access hole to the back of the heater as I recall.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: leak help

Reply #3 –
Here is a pick of access hole on mine. (former Jor coach)  97 34'
Kim McCoy
1997 270 34'

Re: leak help

Reply #4 –
What is the overall size? Looks well done. John
John
1998 U270 34'

Re: leak help

Reply #5 –
Hi.  Bill here. longtime lurker and recent Unicoach owner (more on that later).  I've worked on a good bit of pex lines. Rarely (i.e. not so far) have I seen one split...even after a brief freeze.  Pex will and can flex.  Quest (polybutylene), however, will fail easily, esp as it ages..  But if it's pex, it's most likely the fitting which has failed.  This I have seen happen with some routine.  Oftentimes it's the cone seal inside the fitting.  These are both quick swap new for old type repairs, just replace the fitting or the cone seal and it could save you replacing a supply line, especially at the water heater.  It's easy to miss a failed cone seal when checking the fitting, but it's an easy thing to swap in elimination.  Possibly too a crimp has failed.  Just a thought.

Bill
95 36' U295  CAI, build #4757
—>formerly homed in the midwest, now mobile again,
      mid-atlantic for the present.

Re: leak help

Reply #7 –
If it is leaking with the water pump then it will also leak on city water.
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins

Re: leak help

Reply #8 –
Does anyone know what the factory used for water lines in a 1998 u270? Thank you
John
1998 U270 34'
 

Re: leak help

Reply #9 –
Quote from: John/Pat –
Does anyone know what the factory used for water lines in a 1998 u270? Thank you

1/2" PEX with copper crimp rings

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."