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Old 08-04-2014, 01:26 PM   #1
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Todd Power Switch

I have a 2001 Marlln National RV, with a Todd Engineering Power Switch. It switches between the land line and the generator just fine, but will not switch to the inverter. The inverter comes on but will not go thru the power switch, if it is supposed to. If not what does the inverter go thru to isolate it. I suspect it is the power switch, but Todd is out of bus. The inverter, Xantrex, is brand new and is making 110 but is not getting to the distribution panel. Any help would be appreciated.
bob
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Old 08-04-2014, 04:25 PM   #2
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rsjr,

Inverter power usually does not go through the transfer switch. The power will go directly from the inverter to the powered receptacles, or to power a sub panel for specific circuits. The incoming power to the inverter will go thru the transfer switch. Unplug the motorhome and do not have the generator running, then go around with your tester and find out what receptacles are hot and what has power to it, then mark those so you will remember what the inverter powers, this is providing the inverter is turned on and no circuit breakers are tripped. Good luck.
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Old 08-05-2014, 11:14 AM   #3
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The inverter probably has its own internal transfer switch, separate from the main shore/generator switch. It also has a circuit breaker that may be tripped - look for a reset button on it.

What model of Xantrex inverter is it, and has it ever worked as you expect? The installation has to alter the coach wiring to get selected circuits powered through the inverter rather than direct from shore/generator power.
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Old 08-05-2014, 03:36 PM   #4
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The inverter probably has its own internal transfer switch, separate from the main shore/generator switch. It also has a circuit breaker that may be tripped - look for a reset button on it.

What model of Xantrex inverter is it, and has it ever worked as you expect? The installation has to alter the coach wiring to get selected circuits powered through the inverter rather than direct from shore/generator power.
Thanks for the info. It is a Xantrex Freedom 458-20. The old inverter operated as expected before it went out. the reset button and the circuit breakers are ok. Todd has examples of the invert in the power the power switch circuit and not in. I am not sure of which one I have, it is very tight in there. I installed the new inverter and there is no way of screwing that up. It is making 110 and both outputs are hot. The microwave is on one of the inverter circuit and the light is not on. It is on when I am on shore power.
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Old 08-05-2014, 03:43 PM   #5
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rsjr,

Inverter power usually does not go through the transfer switch. The power will go directly from the inverter to the powered receptacles, or to power a sub panel for specific circuits. The incoming power to the inverter will go thru the transfer switch. Unplug the motorhome and do not have the generator running, then go around with your tester and find out what receptacles are hot and what has power to it, then mark those so you will remember what the inverter powers, this is providing the inverter is turned on and no circuit breakers are tripped. Good luck.
Thanks for the info. Todd has examples of the inverter going thru the power switch and not. My switch will go both ways. It is very tight in there and I am not sure. The microwave is on the inverter circuit and the light does not come on, Both of the inverter out puts are hot when it is the invert mode. Both of the breakers and the reset button are ok
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Old 08-05-2014, 05:47 PM   #6
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The inverter 110 volt output goes through a/or several breakers. Probably two as the microwave is usually on its own breaker and the other breaker to the rest of the outlets powered by the inverter.

On my coach, the inverter 110 volt output goes to a secondary breaker box with two breakers. I saw my secondary breaker box by accident one day as it is located near the ceiling of one of my storage bays.

Keep looking for a secondary breaker box.
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Old 08-05-2014, 06:12 PM   #7
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My Todd wiring diagrams do show , an inverter wired through the transfer switch, can you trace power cables from the inverter into the transfer switch box , or do they run elsewhere ?

Two different applications with 3,000w and one 6,000w, max wattage listed. Then power to the main breakers in the coach

I'll read through and see if an activation test is laid out.

Edit: your coach is 50 amp isn't it ? because diagrams have nothing for 30 amp with inverter.
RE-edit , found one for 30 amp.
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