My GWL11 went dead the other day, so I got a new control board and revived it. However, the diverter valve was not operational. Being a common problem, I replaced that as well, but even the new valve is not operational (I ran the test from the GWL10 manual). Impedance on the valve checks out. This points to either the control board being broken out-of-the-box or a wiring fault.
The replacement control board was not exactly the same as the old one. Specifically the diverter circuit was connected via a pig-tail across the module. Even so, there's no "wrong" way to plug these wires in.
What voltage should I expect into the diverter valve circuit while it is activated?
Thanks for the info!