OK - here's the dirt on what I did:
On the factory demonstrator switch the "Auto/Manual" switch was a spring loaded switch that would override the lid safety switch, and divert the power that was going to the lid to the adjacent "Fill/Run" switch. Long ago, Ben had wired around the lid safety switch making main power available at ALL times. This effectively eliminated the need to install the "Auto/Manual" switch.
The "Fill/Run" switch was a double pole, double throw switch without an "Off" in the middle. It functioned in exactly the same way that the fill level switch inside the lid did. Since the "Auto/Manual" switch had disabled power into the lid, this switch then became the "water level" sensor.
What I decided to do was to put a fill circuit by-pass on one switch and mount it upside down. The second switch is a main motor & timer motor interupter switch. It is mounted right-side up.
When the fill circuit by-pass switch is up (off), the fill valve only receives power when the lid is down and the float has not pressed up on the black water level sensor. In normal operation, when the float rises, it pushes on the black water level sensor thereby OPENING the fill circuit and CLOSING the motor & timer motor circuit.
When this switch is down or ON, it closes the fill circuit and opens the water valve whenever the machine is in an "agitate" section on the timer. This is necessary for use with the lid open because when the lid is open on this machine, the water level sensor switch falls back into the "full" position and agitation begins immediately with a dry tub. When you fill the machine with this override switch you have to manually turn the switch off (UP) when you have reached the correct water level.
Now, the motor interupter switch is there so that when the lid is up the motors do not start as soon as you engage the power through the timer switch. When this switch is down the circuit is open and when the switch is up the circuit is closed. So, with the lid open, you must start with both switches in the DOWN position. When the machine is filled you put both switches in the UP position to stop filling and begin agitation.
IF, however, you push the fill by-bass switch DOWN while the machine is agitating, it will open the water valve, thus allowing you to do an "overflow" wash or rinse.
Also, the wiring is such that if both switches are in the UP position AND the lid is down, the machine will function completely normally and automatically.
Hope that helps.
