Re: Whirlpool OWI failure
Optical Water Indicator.
It’s the device at the three o’clock position in the sump of the machine. If the error code points to this then believe it even if the device seems ok when testing with a test meter.
Sometimes the error code shows the fault as an OWI even if the device is the (microswitch) pressure switch system.
Some machines fill with a separate metering system (flow meter) but use this device as a backup safety water level test.
Bob