Forum Discussion
DrewE
Oct 24, 2020Explorer II
Locate the solenoid that clicks when you operate the disconnect switch, and investigate there (specifically, the big terminals for the power connections, not the little ones for the control wires). With it on and not connected to shore power, you should see 12V on both sides. With it off, one side--connected to the battery--should have 12V, the other nothing.
If you always have 12V on only one side, then the disconnect relay is bad and needs replacement. In the meantime, you can get power by bypassing it by connecting both heavy wires to the same terminal. Of course, you should do this reconnecting only after disconnecting the battery, say by removing the ground wire from it.
If you have no power at either terminal, the problem must lie in the connection between the battery and the solenoid, or in the battery's ground connection.
If the solenoid is operating properly, your problem must lie between the solenoid and the DC distribution panel.
If you always have 12V on only one side, then the disconnect relay is bad and needs replacement. In the meantime, you can get power by bypassing it by connecting both heavy wires to the same terminal. Of course, you should do this reconnecting only after disconnecting the battery, say by removing the ground wire from it.
If you have no power at either terminal, the problem must lie in the connection between the battery and the solenoid, or in the battery's ground connection.
If the solenoid is operating properly, your problem must lie between the solenoid and the DC distribution panel.
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