GE top load washer GTW680BSJ5WS Need help with H2O Supply error message

I found this. It is a water supply issue

https://www.justanswer.com/appliance/8m26u-ge-gtwn7450d0ww-top-load-washer-display-says-h2o-supply.html

The washer is now fixed. It appears the controls froze up and locked themselves for whatever reason. Here is what I did:
I located the mini manual inside the washer, and got the instructions to get the washer into service mode. I did have to unlock the controls as it appeared they locked themselves when they froze up. I pushed the buttons and turned the dials as instructed to get the controls in service mode, which seemed to work fine.
I ran through all the diagnostics, found no issues or error codes, or anything else unusual.
When I exited service mode, the controls reset and worked normally. So no bad circuit board, no visit from the appliance tech required. Maybe you could use my experience to help the next guy.

Sort of guessing at the make and model of your mystery appliance, but the videos and articles may help

https://www.google.com/search?q=reset+H20+Supply+error

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If the Fill light is flashing or H2O SUPPLY is scrolling on the display (2015 and newer models): the washer will initiate a 3 or 4 minute lock-out period (depending on model). The washer controls won't respond or change during this time. After 3 or 4 minutes, you can choose your settings and press Start. Unplugging the washer will start the 3 or 4 minute lock-out period again.

Assuming water is cut on at faucet, be sure hot and cold lines aren’t reversed. Also check screens in hoses and valve for debris.

Check belt. And check motor

if water on check filters at inlets if ok possible bad water solenoid

Sorry I do not understand what it is you are asking here??

First make sure someone didn't turn off the supply valves where the washer hoses are attached to. If both are on, then try to fill machine and switch between hot and cold water. If one of the 2 temps works, the other half of the fill valve is bad. The fill valve is the part where the hoses attach to the back of the machine. It is a 2 part electric valve with 2 electric coils on the valve. Could be one coil is bad or possibly the filter screen is blocked on one side. Screens can be checked and looked at by removing hoses and looking inside end of valve. If coil is bad, complete valve needs replaced. Easy exchange, a few screws, 4 wires, and a small hose leading to inside of machine.

If the water supply valves are open, turn off the valves and disconnect the hoses. Replace the hoses. (You may have flood-prevention hoses. When these fail, the hose actually restricts water flow to avoid flooding.) If you want to test this, try placing a bucket under the inlet hoses and opening each valve in turn. Check how fast the water fills your bucket. Make sure that you cleaned the filters at the washer inlets and at the supply valves.

If the valves were closed, try running the washer with the valves open.

If that doesn't help, the flow meter valve has possibly failed or another part in that system has failed. This is part 805 on the tub and lid diagram here: https://www.geapplianceparts.com/store/parts/assembly/GTWN7450D0WW .

To purchase the part from GE, go to https://www.geapplianceparts.com/store/parts/spec/WH13X10057 . It is available at other appliance parts suppliers. The price is similar at the vendors that I consider using.

I hope this helps.

Cindy Wells

check your owner manual section troubleshooting for error code very important.
Normally this error code can be meansL a) pressure out of range.
or b)eepron error.
or call the factory and get support online via chat or phone for to fix it.
God bless you

The hitachi machine bring an error message C1B1. Please assist