By recycle I meant to switch it off and on once? or twice. Probably it isn't the clearest or best term, but it is what is often used when talking of the computer software and hardware I deal with at work every day.
To locate the break in the wiring, use your voltmeter or multimeter to check the voltage at the connections along the circuit between the converter and the battery. At some point you will see one measurement at the higher converter voltage and the next at the lower battery voltage, or vice-versa if you are going the other direction along the circuit. That shows where the connection is not good.
If the problem is at the disconnect solenoid, you can bypass it by putting both heavy wire connections on the same stud. It is of course wise to make such a change with the converter off and the battery disconnected by removing a lead from it so that any accidental short to ground can't cause problems.