Connection Diagram
6442 Wiring Display
Firstly,you need to connect from this Active Low interface,but you connect it from the Active High.This is the first problem.
Secondly,Please connect P and G port if you do not need water protection.
Thirdly,if the power supply is connected to the water protection, the WP interface on the main control board does not need to be connected, and then the main control board should be connected to the 125 port. You connected the wrong connection to the 1234 port.
Please see the wiring of Figure 6442