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Old 02-28-2015, 05:14 PM   #1
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2005 30' Classic
Brentwood , Tennessee
Join Date: Jun 2009
Posts: 18
Power Inverter problem

In the rear bedroom of my 2005 Classic 30' trailer I have a wall mounted TV that connects to a power inverter in the closet adjacent to the bed. The TV stopped working and I traced the problem to the power inverter (the TV works when plugged into one of the standard trailer outlets). I replaced the inverter with a new one but the TV still won't work. Is there something else I need to do to get the inverter to function properly. I know absolutely nothing about electrical connections and I only found out about power inverters by using the internet and product information on the old inverter.

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Old 02-28-2015, 07:12 PM   #2
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2005 19' Safari
Phoenix , Arizona
Join Date: Aug 2004
Posts: 2,359
First, check the power in the 12-volt DC socket that the inverter plugs into. The fuse may be blown for that outlet, and no power is available.

Also, you can test the inverter by plugging it into another 12-volt source; e.g., the cigarette lighter socket in your tow vehicle (TV), assuming your inverter's power cord has a cigarette light plug.

Since you state that you are unfamiliar with electric/electronic circuits, use caution testing the 120-volt AC outlet on the inverter. Despite being connected to only 12-volts DC, the inverter output is the same as a wall socket in your home and can electrocute you.

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Old 02-28-2015, 07:28 PM   #3
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Naples, FL , Hood River, OR
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If this is a hard-wired inverter, look for the inverter fuse, which should be in the positive cable that feeds directly into the inverter positive battery terminal. This fuse (by NEC code) should be within 18" of the battery. If you aren't getting DC power to the inverter, you won't be getting 120VAC power out of the unit.
Lew Farber...RVIA Certified Master Tech...ABYC Certified Master Marine Electrician
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Old 03-08-2015, 08:22 AM   #4
1 Rivet Member
2005 30' Classic
Brentwood , Tennessee
Join Date: Jun 2009
Posts: 18
Power Inverter Problem

Thanks for the replies. I have checked the fuses and they are fine. I am not changing any of the connections. I simply replaced the old inverter with a new one. The problem must be with the connections beyond the closet. I will have to get an A/V guy or someone familiar with inverter connections to look at it.
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