Reply
 
Thread Tools Display Modes
Old 03-16-2019, 12:03 PM   #1
Junior Member
 
Join Date: Jan 2019
Posts: 15
Help. Dometic Refrigerator Light

While attempting to wire an internal fan to assist with cooling, I thought I could tap in to the 12v from the light. I disconnected the wire to switch, cut off the female adapter and connected the positive lead only to realize it will only feed power when the door is open. Duh. It was at the end of a long day and I decided to stop and start again another day. Well, two weeks later and I canít remember how the switch was wired before. I should have taken an image of the switch so I could reference later but...duh.

Anyways, I need help putting this back together. Concerned if I wire it wrong I will short the frig out. Pretty sure they have engineered it so I canít fry it but I want to be sure. Where do these wires go? Bonus points if you can advise me where to wire the 12v for the fan.
Attached Thumbnails
Click image for larger version

Name:	C05ED682-72C0-4E5B-9FE6-6F49B8AF082C.jpg
Views:	50
Size:	248.7 KB
ID:	198880  
__________________

TomLerch is offline   Reply With Quote
Old 03-16-2019, 12:07 PM   #2
Junior Member
 
Join Date: Jan 2019
Posts: 15
another image
Attached Thumbnails
Click image for larger version

Name:	493AAE0B-8C5C-4CB5-8E2A-B69EA1F42290.jpg
Views:	39
Size:	211.1 KB
ID:	198881  
__________________

TomLerch is offline   Reply With Quote
Old 03-16-2019, 12:18 PM   #3
D W
Senior Member
 
D W's Avatar
 
Join Date: Sep 2016
Location: ALASKA (World's Biggest Campground)
Posts: 1,027
You didn't specify what model Dometic you have, but here is a Dometic 2-way control system schematic. It covers the light and the switch. Hope it helps you out.
Attached Files
File Type: pdf Dometic Contol System.pdf (247.1 KB, 39 views)
__________________
'04 K3500 Silverado LS with LS3 Connect & Cruise- with Intimidator Mods- Reprogrammed 4L80E
2016 Salem 27RKSS (Pacific Northwest Build)

"...exhaust fluid? We don't need no stinkin' exhaust fluid"
D W is offline   Reply With Quote
Old 03-16-2019, 10:18 PM   #4
Junior Member
 
Join Date: Jan 2019
Posts: 15
Thank you. Does anyone have a picture of their internal refrigerator light?
TomLerch is offline   Reply With Quote
Old 03-16-2019, 11:15 PM   #5
Senior Member
 
cavie's Avatar
 
Join Date: Apr 2016
Location: Port Charlotte Fl/Hinsdale Ma
Posts: 3,507
I see 2 12 volts in and 2 12 volts out. The switch is acting as a junction box and a switch. 12 volts comes in and 12 volts goes out to something else. The lever that touches the door turns the light on and off. 2 reds on one screw and 2 blacks on the other. Makes no difference which one. that's the best I can come up with from those pictures.

The 12 volts in and out power other near by items like the range hood, Furnace, Water heater control board.
__________________
2002 27rk Wildcat 5er.
Port Charlotte Fl/Hinsdale Ma
Retired Master Electrician.

I know you believe that you understand what you think I said but I'm sure you realize that what you heard is not what I meant
cavie is online now   Reply With Quote
Old Yesterday, 08:13 AM   #6
Senior Member
 
bubbles's Avatar
 
Join Date: Dec 2012
Posts: 3,649
Don't know your Dometic model but if it has a drain tube to the outside route the wires through it and pick up 12 volts and ground at the rear of the fridge. Those fans typically have a power switch on them so a constant 12 volts from the back is what you should look for. There's typically a power strip associated with the fridge on the backside. Use your voltmeter to locate 12 volt DC power and ground.
bubbles is offline   Reply With Quote
Old Yesterday, 08:26 AM   #7
Senior Member
 
Join Date: Jul 2017
Location: Suffolk, Va.
Posts: 1,110
Looks like from the photo that Cavie is right except they are not screws. They look like 90 degree female crimp spade connectors. They are normally color coded so if you get the same color it should be the same size. I would just put the two blacks in the spade connector and slide it onto the open male spade. Maybe someone will have a photo of theirs and it will confirm but I think that's right.
__________________
Michael & Fran Dilday (Baxter & Honey 2 Labs)
'18 Cedar Creek Champagne 38EL - '17 Ford F350 Lariat DRW w/Reese hitch - TST 507 Color TPMS - Garmin RV 770 LMT GPS
mwdilday is offline   Reply With Quote
Old Yesterday, 09:00 AM   #8
Senior Member
 
sgtlm17's Avatar
 
Join Date: Oct 2013
Location: New Jersey
Posts: 1,318
There are two 12v wires on the switch. The feed that supplies power to the switch and the other wire on the switch supplies power to the light when the door opens and the switch is activated. The fan goes to the wire on the switch that feeds constant power to the switch.
__________________
2016 Forester GTS 2801QSF
2011 Jeep JK Toad
Habitual RV Modifier
sgtlm17 is offline   Reply With Quote
Old Yesterday, 09:45 AM   #9
Senior Member
 
Join Date: Jun 2012
Posts: 9,213
Depending on your fridge model and year, your wiring may look more like this one than like D W's:

Click image for larger version

Name:	Generic DM2652 wiring diagram.png
Views:	29
Size:	65.8 KB
ID:	198981

If you look on the back of your fridge, there's probably a wiring diagram sticker attached so you'll know exactly which one you've got.

The problem, in both cases, is that the +12 volts goes to the door switch first. Unfortunately, accessing the door switch is very difficult/impossible.

Your two options are routing a wire through the drain hose as bubbles stated in Post #6, or feeding a wire along side the thermistor wire. Both of these options will get you outside the fridge in the back, where you can then tie it into the power block. I tied my external fans into my power block. The power block is the white thing circled in red in the pic below.

Click image for larger version

Name:	Fans 4 markup.jpg
Views:	25
Size:	276.9 KB
ID:	198983

For the ground wire, you can also route this outside to the power block; alternatively, some people put an alligator clip on it. Clip the alligator clip to the fins and you've got a ground and the fan runs. Remove it and the fan stops. Simple on/off.

Good luck.
__________________
1988 Coleman Sequoia - popup (1987-2009) - outlasted 3 Dodge Grand Caravans!
2012 Roo19 - hybrid (2012-2015)

2016 Mini Lite 2503S - tt (2015 - ???)
2011 Traverse LT, 3.6L, FWD
2009 Silverado 1500 Ext Cab, 5.3L, 4x4, 3.73
2016 Silverado 2500HD Dbl Cab, 6.0L 4x4, 4.10
rockfordroo is online now   Reply With Quote
Old Yesterday, 10:13 AM   #10
Senior Member
 
cavie's Avatar
 
Join Date: Apr 2016
Location: Port Charlotte Fl/Hinsdale Ma
Posts: 3,507
The op does not need to run wires anywhere. They are right there at the light. Red is positive. Black is negative. You need a voltmeter to determine where the wires went on your light. Wire the fan to the red and black and go to your fan control of some sort and the fan. The photo shows a light and switch combo. He just doesn't remember which wires go. Like I said, the light acts as a j-box, light and switch all in one. See the lever to the right? That hits the door. I just can't see all the contact points to help you any further.
__________________

__________________
2002 27rk Wildcat 5er.
Port Charlotte Fl/Hinsdale Ma
Retired Master Electrician.

I know you believe that you understand what you think I said but I'm sure you realize that what you heard is not what I meant
cavie is online now   Reply With Quote
Reply

Tags
dometic, light, refrigerator

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Featured Campgrounds

Reviews provided by


Disclaimer:

This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 05:34 PM.