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Topic: Auto Fill Problem (Read 526 times) previous topic - next topic

Auto Fill Problem

I"m sure this has been tackled before.....
I am hooked up to city water. I have two auto fill switches. One outside in wet bay, one under kitchen sink. They are both "off".
My holding tank was over flowing. So it seems that something is stuck open, and allowing the holding tank to fill. Can someone guide me through the "fix". Thanks.
In the meantime, I am simply running off the tank with my pump. Something a lot of us do, automatically.
thanks
Glenn and Amy Beinfest
2001 36' U320
#5812
2014 Honda CRV

No Whining on the YACHT

Re: Auto Fill Problem

Reply #1 –
Fill valve stuck open or is bypassing internally. I was able to clean and make mine serviceable. Filled with calcium.
Scott

Re: Auto Fill Problem

Reply #2 –
You do mean fresh water tank not holding tank I hope.
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: Auto Fill Problem

Reply #3 –
Yes, I mean fresh water tank
How do I find the valve to clean it or unstuck it??
Glenn and Amy Beinfest
2001 36' U320
#5812
2014 Honda CRV

No Whining on the YACHT

Re: Auto Fill Problem

Reply #4 –
Glen, mine is on the passenger side behind the water pump
Chris
1999 U 320 DGFE
Build Number 5523
Chris & Elka Lang
In the field, Lonoke AR

Re: Auto Fill Problem

Reply #5 –
Had the same thing with my fill switch, there was debris blocking the "plunger" and would overflow, even if the fill switch light was not on..... I did remove and clean the solenoid switch assembly, reinstalled but even after testing the solenoid it wouldn't open to "fill"
So I replaced it with a manual valve and so far it works great.
2001 36' U320 Build 5901
2001 LX470

Re: Auto Fill Problem

Reply #6 –
Glenn, any air/water 12v solenoid valve that is NC. (normally Closed)will work.  I would get a 3/4"  0r 1" and reduce it down to the 1/2" fitting.  A 1/2" solenoid valve will not have the same flow rate as the 1/2" pex line.  That is why I use the 3/4" or 1" valve.
The slow fill that some owners have is due to the 1/2" valve.
Chris
We are still in Q if you are anywhere close!
1999 U 320 DGFE
Build Number 5523
Chris & Elka Lang
In the field, Lonoke AR

Re: Auto Fill Problem

Reply #7 –
Thanks, Chris
Still in Mazatlan for a while. I looked around where my pump is, and have no idea what I'm looking for, and what to do if I am lucky enough to find it. I would do what you suggested, if I knew what I was looking for, and if I can obtain the parts here. Mazatlan is a big city and I should be able to find what you said, above.
I had pulled, and replaced, my pump a few years ago. It looks like I have to dismantle the shelf I have above the pump, in order to get at the solenoid?
Always something new to learn, owning the coach. No complaints, though
Glenn and Amy Beinfest
2001 36' U320
#5812
2014 Honda CRV

No Whining on the YACHT

Re: Auto Fill Problem

Reply #8 –
Quote from: GleamB –
I looked around where my pump is, and have no idea what I'm looking for, and what to do if I am lucky enough to find it.
See thread linked below for photos of typical solenoid water fill valve and tips on how to clean it out or (if necessary) replace it.

Big thanks to Mike (Pamela & Mike) for his detailed solenoid valve dissection photos and repair instructions.  A very helpful post!

Water Fill Valve Issues

1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Auto Fill Problem

Reply #9 –
Replaced mine with a simple 1/2 pex shutoff valve. Just need to manually open or close when needed. Makes checking the actual water level of the tank easy also.

2000 GV320 4010 build #5712  2019-?
1999 Bounder 2000-2008
Bardstown, KY
🥃The Bourbon Capital of the World🥃

Re: Auto Fill Problem

Reply #10 –
Quote from: Tommy D –
Replaced mine with a simple 1/2 pex shutoff valve. Just need to manually open or close when needed. Makes checking the actual water level of the tank easy also.

Do you have any pictures of that installation?
How does it make checking water level easier?
Thanks
Glenn and Amy Beinfest
2001 36' U320
#5812
2014 Honda CRV

No Whining on the YACHT

Re: Auto Fill Problem

Reply #11 –
Glen, to check a translucent freshwater tank's level put a light on top of tank and water lever will be visible. Worked for us for 20 years.

BTW, our freshwater fill valve was a ball valve on a large PVC gravity fill pipe.

Both of these mods eliminated a lot of uncertainty over the years.

Re: Auto Fill Problem

Reply #12 –
Quote from: GleamB –
Do you have any pictures of that installation?
How does it make checking water level easier?
Thanks


2000 GV320 4010 build #5712  2019-?
1999 Bounder 2000-2008
Bardstown, KY
🥃The Bourbon Capital of the World🥃