Hot water pipes whine
Hi All, We have a 2015 Fleetwood Discovery with a really strange problem. Whenever we run hot water from any of the taps in the MH the water system makes a whining noise. It is loudest in the rear ...
Forum Discussion
janstey58 wrote:
I found out from Fleetwood that my WH is an Atwood 94025/GE 16Ext. From online documentation and pictures, I can see that the check and mixing valves appear to be included with a new WH. I cam contacting Atwood to get their take on this.
OK now,......that is an XT model.
Uses a 160*F t-stat so the 10 gallons are heated to high temp
Then on WH Tank out let is a 'mixing valve' that has a cold water input to mix the HOT water with so the water going out into the hit water plumbing system is controlled at 130*F
Mixing valve can get clogged on hot inlet side from calcium/crud from WH tank especially if water supply source is 'HARD'
OEM mixing valves are 'sealed' and 'locked' so adjustments can nit easily be made.
They also are high priced.....Atwood #90029
Very few RV Mfgs install check valves on Cold Inlet,......very common on hot out.
Winnebago likes to do it on both
