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Old 09-06-2011, 08:18 PM   #1
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Question Dometic refrigerator question.

Now I have a new problem.
I have a Model NDR 1292 Dometic refrigerator . I am replacing the door switch and cannot figure out what the extra RED wire is for. There are three wires coming out of the wall. 2 RED and one BLACK. I hooked up one RED and one BLACK to the switch and it works fine.
Also Thanks to wa8yxm. I found the fuse that was blown (in the black box). It wasn't the bulb.

Thanks
Dale
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Old 09-07-2011, 03:54 PM   #2
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Hi

Here's a link to the owner's/installation manual for your fridge- there's a wiring diagram on the last page that might answer your question...
ryantrv.com/docs2/docs/operating/ndr1292.pdf

Hope this helps!

Francesca
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Old 09-07-2011, 05:41 PM   #3
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OOPS, Francesca

Link does not seem to work.

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Old 09-13-2011, 06:17 PM   #4
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Quote:
Originally Posted by Dale & Patti View Post
Link does not seem to work.

Dale
Darn!
Sorry I'm so long getting back to you, Dale...I've been camping!
Looks like I missed some of the link- this should be the right one: http://bryantrv.com/docs2/docs/operating/ndr1292.pdf

At least I hope so!

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Old 09-13-2011, 06:34 PM   #5
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Quote:
Originally Posted by Dale & Patti View Post
. I found the fuse that was blown (in the black box). It wasn't the bulb.

Thanks
Dale
HMMMmmm - as I recall, I had mentioned that it was unlikely the bulb was bad - and that the worse case possibility was a bad door switch...

Glad you located the problem...
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Old 09-13-2011, 10:05 PM   #6
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I haven’t looked at the schematic but I will bet the other wire goes to the LAC or Low Ambient Control Button. This button keeps the interior light on all the time to keep things from freezing.
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Old 09-14-2011, 12:04 PM   #7
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I have looked at it. .and it does
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Old 09-14-2011, 01:07 PM   #8
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I haven’t looked at the schematic but I will bet the other wire goes to the LAC or Low Ambient Control Button. This button keeps the interior light on all the time to keep things from freezing.
Question!
Do most newer RV fridges have that feature?
I ask because I've been following the thread about fridge fans here, and many folks are powering the little retrofitted fans off the bulb circuit...
A recent poster said (quote from post #107: Fan in the Fridge-)
(Begin quote)
" 12 is tied to the GROUND side of the lamp. The lamp switches ground on and off to activate, so I'm drawing current through the lamp when the door is shut (because there's no ground when closed). Net effect is that just like a residential fridge the fan shuts off when the door is open and back on as soon as the door shuts and the lamp goes off. "
(End quote)
So-
Is that "LAC" feature standard these days?
Would the fan run all the time if the light stays on all the time???


Thanks!

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Old 09-14-2011, 08:54 PM   #9
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I believe the LAC feature is standard these days.
If you have the LAC switched on then yes the fan will run all the time.
You can test the LAC by opening the fridge and with the LAC switch off push the light switch lever, the light should turn off. Now turn the LAC switch on and push the light switch lever, the light should remain on.
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Old 09-14-2011, 09:03 PM   #10
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Hi

I really appreciate the explanation!
I'm a bit unclear on why the light stays on- I think you said it's to keep things from freezing?
Or is it to keep the fins from icing up?
Is it the heat of the bulb that does that, or what?

Thanks!

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Old 09-14-2011, 09:03 PM   #11
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By the way, here is the schematic.

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Old 09-14-2011, 09:23 PM   #12
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Quote:
Originally Posted by Francesca View Post
Hi

I really appreciate the explanation!
I'm a bit unclear on why the light stays on- I think you said it's to keep things from freezing?
Or is it to keep the fins from icing up?
Is it the heat of the bulb that does that, or what?

Thanks!

Francesca
Actually that's a good question. I am not sure if it keeps things from freezing or keeps the fins from freezing. Yes the heat of the bulb is what does it.
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Old 09-15-2011, 08:27 AM   #13
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My 2005 does not have the LAT switch.. However if I should want to add it.. Not really a problem since I know what it does and how to do it "Manually" as it were.
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Old 09-15-2011, 11:43 AM   #14
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Thanks, guys!

That's real interesting.
Now I'm curious- it sounds like the switch can be turned off- is that right?
I'd bet lots of folks would keep it "off" to conserve power or something.
I probably would...
But then if that causes icing, they might be installing those little fans to solve that problem!
It'd be kind of ironic if all they had to do was turn the switch back on.
I'm contemplating a new fridge purchase- I think I'll look in to this a little more while I'm shopping.

Thanks again!

Francesca
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