GE Washer GFW550SSN1WW H2O Supply error

[chirashi-j]

Model Number

GFW550SSN1WW

Brand

GE

Age

1-5 years

Our front-load washer is just under 2 years old, suddenly started getting the dread H2O Supply error. I checked the hot and cold supply lines and filters: good pressure, no debris or clogs. (Our water is not hard, and neutral pH.) BUT -- the Quick Wash cycle still completes fine, but only with the default settings. (Changing the water temp from warm also brings the H2O supply error. Other cycles fail.) Also, the timer counts down the first minute, and then doesn't progress for many minutes. I can hear the washer fill with water during the Quick Wash, and during fill I can feel the cold water moving in the cold water supply line.
The H2O Supply error is supposed to be unrelated to the wash cycle selection, so I presume the control board went bad. I don't see how the pressure sensor could fail for most cycles, but not Quick Wash.
I have scheduled a service visit via GE, but I see several threads about this error. Has GE acknowledged a manufacturing defect for this problem?

 

[chirashi-j]

NOTE: I purchased this washer through Costco.com, and therefore it is still under warranty (barely). Costco is coordinating with GE repair services.

 

[Jake]

“H2O SUPPLY” (Water not entering washer)
Check your house water supply. Did you forget to turn on one or both supply valves after installation or coming back from vacation? As soon as the message starts to scroll, the washer will initiate a 4 minute lock-out period. The washer controls won’t respond/change during this time. After the 4 minutes, you can begin your cycle again. If you try to bypass the lock-out period by unplugging the washer, the 4 minute timer will start over again.

Yes, if your water pressure is good and the water inlet valve screens are clean and clear, and the water pressure coming into the machine is good pressure also, then the main control board would be the culprit.

Here's the main control board for your model: WH22X35518