I get a code 4, Fill Error. I replaced the control module and still get the Code 4. When the machine runs no "F" comes up as a code, but the machine runs a long time and hangs up at 1 minute left.

I have checked and rechecked the water level switch and the float switch. I checked all the ohm values at the connectors by the module, per the troubleshooting guide--all OK, including heating circuit and AquaSensor. I checked the motor resistances and the fill valve. The water level switch closes as it is supposed to. The water fill valve keeps getting voltage and filling the machine, whether or not the water level switch is closed or I jump those leads.

The only thing that turns off the water fill valve is when the machine overfills with water and the float switch closes. Then the machine cycles about every 2 seconds, draining and filling.

The control module circuit board is new, but the one it replaced is only a year old and shows no bad solder joints. I get a code 4 with either board.

It acts like the control module is not reading the closed circuit of the water level switch and depowering the fill solenoid. Why?