PC,

I'm surprised you don't have other complaints ?

The R O unit is the most likely of your problems ...

You need to check with the osmosis unit manufacturer / servicer, and see if they have a check valve or regulator to install on your refrigerator water supply line.

The fluctuating pressures in the R O unit, wreaks havoc on the fill valve and water system in your refrigerator.

If they have no remedies, you may want to consider a separate water supply to the fridge.

Good Luck,
:) :) :)
PS If you do remain on the R O system, Remove the water filter on the fridge,if you haven't already.
:cool: :cool: :cool:

PC,

That's why I stated it at the start of my post, I expected you to have more than just one complaint.

But the ice maker operates or cycles more than the water valve for the dispenser(on average every 60 minutes), low water pressure can cause a solenoid to fail.

The other possibility would be a pinched or damaged wire, in the harness, but that should be the last resort(usually a non repairable situation).

As for your filter, it's located on the bottom of the unit, the 3 inch round area in the grille on the front, twist the handle 1/4 turn counterclockwise and the filter should be behind it, may even come out with the handle, you're filterring your water twice, you really don't want or need that.

I'm pretty sure, if you remove the filter, put a check valve or regulator on the RO system, you'll be good for another 8 to 10 years.

Hope this is enough information to help you.

Good Luck,

:cool: :cool: :cool:

PC,

You're sort of correct about the way, and process a fill valve solenoid operates,

What you have forgotten is,

You need to maintain a constant minimum pressure on both sides of the diaphram inside the valve(25 psi minimum with a filter system is a good rule of thumb).

Most RO systems don't maintain a constant minimum psi, and the reversal process, brings it even lower, and sometimes and in some cases, you actually achieve a vaccuum.

The lower the water pressure, the less water flow, the less water flow/pressure, the longer the solenoid windings are energized, causing a pre mature failure of the coil and a burnt out solenoid.

I believe I mentioned, in most cases your ice maker solenoid usually fails before the dispenser valve, because , it cycles approximately once every hour until the cubes trip the bale arm and shuts the unit off, where as your dispenser, cycles, on an as used basis or inconsistantly.

If you remove the water filter, your operating pressure can be as low as 20 psi and operate satisfactorily for a while.

I don't know where you're located, but where I was located and working before I came here, several of the RO system companies offerred a "check valve" or a regulator on the system to maintain a constant pressure to the refrigerator fill valve.

Here's an excerpt from a service manual, I hope may help:






•

regenerative phase.

• Have someone turn up the cut-off and cut-on pressure on
the water pump system (well systems only).
•

It is normal for a reverse osmosis system to be below 20
psi during the regenerative phase.

I hope this post helped explain the situation better.

:) :) :)