Whirlpool Stack Unit W11476767 Washer gives f27 code. Overfill was detected at end of discharge hose. Replaced pressure sensor, replaced mother board, checked wiring, checked hoses, checked water pressure, code will not clear

Washer Repair
1

Brand: Whirlpool Stack Unit
Model Number: W11476767
Main Symptom: f27 error code will not clear
What happens & when: f27 error code stops all function

Error Code (if any): f27
Parts or tests already tried: checked wiring, checked discharge hose, checked inlet hose, confirmed inlet water pressure, replaced pressure sensor, replaced bother board, shut off overnight, manually filled tub and drained OK, pump good. Plugged in, f27 error code still on readout and stops all further function.
Photos / video link:

2

The model number provided does not appear to be a valid model. Could a picture of the model/serial number tag be provided?

3

20260409_155457
20260409_1554571200×1600 263 KB

4

Is this the model/serial sticker found either behind the dryer door or under the washer lid? I am finding a control board when using the information on this.