Re: Altrax SPM-500 - Pre-charge resistor error code
Alltrax says pre- charge failure occurs when B+ voltage is 6v or more below key switch voltage at ksi input on controller. I will look again this evening but I did notice a 1v drop across the solenoid when closed. Seem like a lot of resistance through a closed contact. And the connections are pretty tight. That would account for 1 of the 6 volts.
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