Posted 3/18/2024 17:05 (#10670431 - in reply to #10670285) Subject: I think I figured it out.
I popped my MT3000 apart since it was on the bench. When I test my switches in the off position the top and middle contacts are connected. There is no diode in the switch I had connection both both ways when I reversed the leads. In the on position all three contacts on the switch are connected. There are no diodes this way either, I have continuity between the pairs on all three pins no matter which way I reverse the leads. I have no idea why it’s this way, but maybe try to tie your red and black wires together at the common on your relay board and the put the bottom switch signal wire to the NO on the relay board and see what happens.
I am wondering if the controller sends power to one buss bar in manual and the other buss bar in auto????
sprayer rate control with some boom valves off, section control
