Side x side fridge water inlet valve burning out

Refrigerator & Freezer Repair
1

Recently moved into a house with a bosch S x S fridge. Found that the water dispenser in the door didn’t work, and that no water was getting to the ice maker. Ice dispenser works fine, just not getting water.

Tested continuity on the water inlet valve, found 2 of the 3 to not be working. Order the replacement, installed, everything worked greated..water in door, making ice, life is good.

It lasted less than 24 hrs and the main selenoid on water inlet valve burned out again. Checking voltage, the main selenoid has constant 120V, and I’m sure this shouldn’t be correct as that would force the valve to be in an open position at all times (voltage = signal to open, default should be no charge and closed?).

I hate to drop the $$ on another inlet valve until I figure out what’s causing this to burn out. Does anyone have a wiring diagram so I can trace back to what I think will likely be a faulty switch somewhere? Or, does anyone know the answer to the problem and test proceedure to double check?

Not sure if anyone will find the B20CS50SNC/03 model # info or not. Thi is what’s on the tag, but even Bosch’s site only lists the /01 and /02 models.

Thanks.

2

Something is calling for that valve to open constantly. It may be that something in the door water switch is stuck, sending voltage to the valve for too long a period.
It could also be that something in the ice maker is calling for water to fill the ice maker constantly. The timer mechanism in the ice maker could be faulty.
I would guess that if the ice maker were unplugged from the wire harness, the voltage to the water inlet valve would stop.
As far as water not making it to the ice maker, there may be an ice blockage in the spout where the water enters the mold.
I would also check the inline water filter if it has one.