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Old 05-10-2015, 08:51 AM   #1
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WFCO 8955 Open Circuit light

I just purchased a used 2014 BKIS. I noticed that two of the fuses were blown and it appears it was probably a battery attached with the wrong polarity. I replaced them and everything in the trailer works fine with one exception. There is no power to the Entertainment unit. Linear RV4000. I pulled out the appropriate 12v fuse in the WFCO and it was not blow, but when I pulled it out a little red LED next to it lit up. I have researched and it seems that this indicates and open circuit? I am not a handyman very much at all, so I am looking to find out what I should do next. I am not even sure what an open circuit is and how to look for it and fix it. Do I pull out the entertainment unit and look for broken wires? or does it have something to do with the converter or something else. The LED red light next to that fuse goes back out when I put the fuse back in. Thanks,
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Old 05-10-2015, 08:55 AM   #2
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Actually it is to indicate a blown fuse on that circuit which you are simulating by removing fuse....
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Old 05-10-2015, 09:00 AM   #3
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Quote:
Originally Posted by fonzie View Post
Actually it is to indicate a blown fuse on that circuit which you are simulating by removing fuse....
X2. As Fonzie stated, when you remove the fuse, then you are opening the circuit. Same thing happens if the fuse blows. In normal use, the light would show you a blown fuse.

When you replace the good fuse, you are closing the circuit, and the light goes off..............as it should.

As per your entertainment system problem. You may have a fuse on the rear of the 4000 or an inline fuse in real close proximity to the wiring in the rear.
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Old 05-10-2015, 09:08 AM   #4
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I looked up the manual on this unit. You can download it from here:

RV4000 Linear Series Wall Mount Radio | In-Wall Car RV Stereo

Page 17 has this. The pdf file won't let me copy the pic on the page, but the reset hole is right underneath the volume dial.

The LCD display may fail to function normally
due to the vehicle’s battery condition, and could
require resetting the radio microprocessor if:
• The vehicle has been “jump started” from a
dead battery condition.
• The vehicle battery becomes very low and is
quick-charged.
• The vehicle battery is removed and replaced.
Should any of these conditions occur, simply
press and release the RESET button on the radio
front panel using the tip of a ball point pen. This
will reset the radio microprocessor to the original
factory settings. After pressing the RESET
button you should recheck to see if the radio
functions normally.

Page 20 also shows a 10 amp fuse on the back of the unit.
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