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Dometic refrigerator question.
09-06-2011, 08:18 PM
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#1
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Junior Member
National RV Owners Club
Join Date: Oct 2009
Location: Gresham Or.
Posts: 19
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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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09-07-2011, 03:54 PM
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#2
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Senior Member
Vintage RV Owners Club
Join Date: May 2011
Location: Port Hadlock, Washington
Posts: 1,295
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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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09-07-2011, 05:41 PM
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#3
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Junior Member
National RV Owners Club
Join Date: Oct 2009
Location: Gresham Or.
Posts: 19
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Link does not seem to work.
Dale
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09-13-2011, 06:17 PM
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#4
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Senior Member
Vintage RV Owners Club
Join Date: May 2011
Location: Port Hadlock, Washington
Posts: 1,295
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Quote:
Originally Posted by Dale & Patti
Link does not seem to work.
Dale
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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!
Francesca
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09-13-2011, 06:34 PM
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#5
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Senior Member
Join Date: Aug 2009
Posts: 1,361
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Quote:
Originally Posted by Dale & Patti
. I found the fuse that was blown (in the black box). It wasn't the bulb.
Thanks
Dale
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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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John Day....|'88 Winnebago Super Chief 27ft. Class A Eastern .....|'88 KIT model 240 24 ft. 5er Oregon ......|'02 Dodge/Cummins 2500 Quad Cab
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09-13-2011, 10:05 PM
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#6
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Senior Member
Workhorse Chassis Owner
Join Date: Feb 2003
Location: Everywhere,USA
Posts: 1,037
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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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Full-Timers
in a
2003 Rexhall Aerbus 3550BSL
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09-14-2011, 12:04 PM
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#7
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Senior Member
Workhorse Chassis Owner Damon Owners Club
Join Date: Mar 2009
Posts: 8,078
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I have looked at it. .and it does
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Home is where I park it!
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09-14-2011, 01:07 PM
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#8
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Senior Member
Vintage RV Owners Club
Join Date: May 2011
Location: Port Hadlock, Washington
Posts: 1,295
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Quote:
Originally Posted by Full-Timers
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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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!
Francesca
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09-14-2011, 08:54 PM
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#9
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Senior Member
Workhorse Chassis Owner
Join Date: Feb 2003
Location: Everywhere,USA
Posts: 1,037
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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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Full-Timers
in a
2003 Rexhall Aerbus 3550BSL
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09-14-2011, 09:03 PM
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#10
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Senior Member
Vintage RV Owners Club
Join Date: May 2011
Location: Port Hadlock, Washington
Posts: 1,295
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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!
Francesca
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09-14-2011, 09:03 PM
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#11
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Senior Member
Workhorse Chassis Owner
Join Date: Feb 2003
Location: Everywhere,USA
Posts: 1,037
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By the way, here is the schematic.
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Full-Timers
in a
2003 Rexhall Aerbus 3550BSL
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09-14-2011, 09:23 PM
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#12
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Senior Member
Workhorse Chassis Owner
Join Date: Feb 2003
Location: Everywhere,USA
Posts: 1,037
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Quote:
Originally Posted by Francesca
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
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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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Full-Timers
in a
2003 Rexhall Aerbus 3550BSL
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09-15-2011, 08:27 AM
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#13
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Senior Member
Workhorse Chassis Owner Damon Owners Club
Join Date: Mar 2009
Posts: 8,078
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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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Home is where I park it!
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09-15-2011, 11:43 AM
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#14
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Senior Member
Vintage RV Owners Club
Join Date: May 2011
Location: Port Hadlock, Washington
Posts: 1,295
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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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