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question

agehring asked Jun 19, '22

Multiplus-II 12v 2x120 overloading with nothing connected

I'm working on installing a M-II 2x120, and when I turn it on it immediately goes into overload mode (red light), which is odd since the other end of the 6/3 isn't connected to anything yet.

Removing the wires from the connection on the Multiplus-II allows it to work, and I've verified that the wires are not shorted together.

Any Ideas what may be going on?

ac coupling

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2 |3000

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Alexandra ♦ commented · Jun 19, 2022 at 05:12 PM

@agehring

Common mistake is mixed neutrals

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agehring Alexandra ♦ commented · Jun 19, 2022 at 05:23 PM

Mixed with what? As noted, the wires are free on the other end.

Black -> L1

Red -> L2

White -> N

Ground -> PE (Earth)

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Alexandra ♦ agehring commented · Jun 19, 2022 at 05:34 PM

Ah, so only in the by free just free to air? Weird one. No fly aways? Are they in one conduit?

Is there correct output with only battery connected?

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agehring Alexandra ♦ commented · Jun 19, 2022 at 05:42 PM

Correct, the far end (~1.5m) is just "hanging", and not in a conduit (in the "basement" of a RV)

I haven't checked the voltages coming out (if any), but the inverter turns on and stays in running mode.

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