FWIW, here’s a summary of the troubleshooting steps that were taken:
The GWL10 stops in the middle of a normal wash cycle and beeps continuously once per second. The fault code on the display seems to be 00110011. According to the Service Manual, this code means "Diverter valve timeout fault."
The Service Manual also indicates:
Primary Source - Diverter Valve
Action - Check Diverter valve continuity. If open circuit, replace.
Secondary Source - Motor Controller Module
Action - Replace Motor Controller Module
I disconnected the Diverter Valve and measured 1.9KOhms across its terminals. Since this is not an open circuit, I am assuming the valve is ok.
I then reconnected the terminals, went into diagnostic mode, and used the "Delicate" button to turn the Diverter Valve on and off. With a voltmeter on the connected terminals of the Diverter Valve, I saw no change in voltage (DC or AC) when I pressed the Delicate button over and over again.
I then did a sanity check to see if the Diverter ever diverts:
- Got into Diagnostics mode.
- Pushed the Temp Down button to get some water in the tub.
- Pushed the Delicate button to turn the diverter ON, at which point the Delicate light went ON and stayed ON.
- Waited a couple of minutes.
- Pushed the Regular button to turn the pump ON, at which point water was pumped to the DRAIN (not recirculated).
- Pushed the Delicate button again to turn the diverter OFF, at which point the Delicate light went OFF.
- Waited 4-5 minutes.
- Pushed the Regular button to turn the pump ON, at which point water was pumped to the DRAIN (not recirculated) again.
But the other part is not so easy. It looks like it could be a transistor, with 2 pins on one side and 1 on the other. I think I can make out "XG..." on it, which doesn't match up with any other 3-pin device on the board. So, I'm stuck.
Does anyone have a schematic or parts list for the controller board?