Mora,
I am using pin 3 for the contactor per your attachment. Power is correct also. I wasn't including the pot pins and had it upside down when I said "top lead". Thanks for the schematic.
I'm also thinking its could be the precharge timer but I'm having trouble sending commands to the controller with moserial. I'll keep trying and/or contact Adamj12b about RTD Explore.
Dan
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