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Old 04-23-2019, 06:39 PM   #1
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Help Needed - Fridge Fuse?

Ok, I like to say that I know just enough about a variety of things to be dangerous, and I need some help sorting out this one.

While installing my new wired fridge fan I think I shorted the 12V positive to the bracket that holds the terminal block for the fridge. I know I should disconnect the 12V when I do stuff like this but every time I just tell myself that I’ll be careful, but almost every time I end up replacing a 15A fuse. I have a whole box of them.

So I get it all hooked up, and no 12V power to fridge. But when I check the WFCO, every 15A and 20A fuse is good. I pulled every one, visually checked then checked them for continuity ye old multimeter.

So...help. Where do I check next?
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Old 04-23-2019, 07:06 PM   #2
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There is an in line fuse back there, if my memory serves me right...
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Old 04-23-2019, 07:11 PM   #3
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Here is a picture of my E19 fuse in the rear
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File Type: jpg IMG_1119.jpg (179.5 KB, 41 views)
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Old 04-23-2019, 07:24 PM   #4
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This may help.
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File Type: jpg frigTop.jpg (98.3 KB, 37 views)
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Old 04-23-2019, 07:31 PM   #5
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So, you may have both, one in the rear and one in the front?
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Old 04-23-2019, 08:31 PM   #6
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I found a 1A and a 30A fuse in the back of the refer. They’re both good. I don’t think the problem lies with the refer, however. I don’t seem to have 12V going to the refer itself, measured at the terminal block. Which is why it seems like it’s a WFCO fuse situation. My Fluke shows 0.1V at the terminal block, which is also consistent with a blown WFCO fuse.

Funny thing though. I pulled four 15A fuses and one 20A fuse at the WFCO to check them, but when empty, only two of the 15A slots illuminated the red lights that normally show when you have a blown fuse. What?
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Old 04-23-2019, 08:54 PM   #7
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Bummer & hope you find an easy fix quick. Gotta say thanks though for reminding me to not fix what ain't broke. Just spent all day doing maintenance items: r & r stabilizers as they creak and such. Paint them plus r & r step to paint also along with waste tube & rear bumper. All day! I have that dual fan and was going to install that, yet now am not. I still remember reversing the flex tube covering the burner down the flue from outside mod that did more harm than good.
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Old 04-23-2019, 09:09 PM   #8
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Bummer & hope you find an easy fix quick. Gotta say thanks though for reminding me to not fix what ain't broke. Just spent all day doing maintenance items: r & r stabilizers as they creak and such. Paint them plus r & r step to paint also along with waste tube & rear bumper. All day! I have that dual fan and was going to install that, yet now am not. I still remember reversing the flex tube covering the burner down the flue from outside mod that did more harm than good.

I don’t think there’s anything wrong with the fan, Ross. Just dingbat me failing to shut off the DC before tinkering and now causing a problem somewhere else. Just not sure where, or what to check next.
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Old 04-23-2019, 09:12 PM   #9
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Funny thing though. I pulled four 15A fuses and one 20A fuse at the WFCO to check them, but when empty, only two of the 15A slots illuminated the red lights that normally show when you have a blown fuse. What?
The blown fuse indicators probably work by bypassing the fuse with an LED and resistor. The resistance is so high that little current will flow, but for some current to light the LED there must be a load on the circuit... meaning that something is turned on. If there's nothing connected to the circuit (or everything connected to it is completely off), then there's nowhere for current to flow and the LED won't light.

No guarantee, but that may be what is going on.
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Old 04-23-2019, 09:14 PM   #10
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Scott- isn't there a reset button for fridge?
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Old 04-23-2019, 09:24 PM   #11
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Scott- isn't there a reset button for fridge?


I don’t see one. But I really think the problem lies somewhere in the circuit before it even gets to the fridge. Other than checking the WFCO fuses, I don’t know where to check. I know there are a few other inline fuses in some circuits and I’m wondering if there’s something in this particular one? Or is it possible I damaged the WFCO? I think that’s unlikely but I’m grasping at straws at this point.
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Old 04-23-2019, 09:24 PM   #12
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I think you are right Brian.

I was pulling some fuses today to make sure the power was off to something that I was going to work on and some LEDs did not light when the fuse was removed.

If I remember correctly, the 20 amp fuse is what powers the fridge. If a new fuse does not work, check the terminals to see that the screws are tight.
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Old 04-23-2019, 09:38 PM   #13
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I got it! I got it! Remember what I said about knowing just enough to be dangerous?

I checked the fuses, three times, but while contorted under the table failed to notice this one, way down at the bottom, all by itself. Yes: The one (almost) labeled “Fridge”

IMG_0970.jpg

Fuse replaced: fridge fans! Yeah! With a cool blue light! Oh, and the fridge works again too

IMG_0971.jpg
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Old 04-23-2019, 09:45 PM   #14
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Quote:
Originally Posted by sclifrickson View Post
I got it! I got it! Remember what I said about knowing just enough to be dangerous?

I checked the fuses, three times, but while contorted under the table failed to notice this one, way down at the bottom, all by itself. Yes: The one (almost) labeled “Fridge”

Attachment 38563

Fuse replaced: fridge fans! Yeah! With a cool blue light! Oh, and the fridge works again too

Attachment 38564

Yeah, you

Now. A photo of where you attached the wires to get the 12v for the fan.
When I do mine, I’ll be certain to shut off power. Lesson learned.

Ed
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Old 04-23-2019, 09:49 PM   #15
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Nice...now you get to go camping
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Old 04-23-2019, 09:51 PM   #16
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Nice...now you get to go camping


Yes! Not the same without a fridge, is it? Once you get used to the cushy lifestyle beyond tents and dehydrated food.
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Old 04-24-2019, 09:05 AM   #17
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Yeah, you



Now. A photo of where you attached the wires to get the 12v for the fan.

When I do mine, I’ll be certain to shut off power. Lesson learned.



Ed


Here you go: IMG_0975.jpg
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Old 04-24-2019, 09:46 AM   #18
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Here you go: Attachment 38577

Thank you.
When we get home from this trip I’ll do the install

Ed
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