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Topic: Purple wires behind fridge? (Read 436 times) previous topic - next topic

Purple wires behind fridge?

I pulled the original fridge out since it's dead and I noticed I have 2 8ga wires, a red and white. +12v and ground. I figured that out. but in that same bundle are 2 purple wires that are twisted together. Any idea what they would be for? I can't find it on any of the schematics I have.
1991 U300 Side Aisle 6V92 Silver #3897
2004 U320 40' #6246

Re: Purple wires behind fridge?

Reply #1 –
Not sure on the wires but JC refrigeration has systems to revive the frige,if the box is good it can be fixed.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Purple wires behind fridge?

Reply #2 –
Quote from: John44 –
Not sure on the wires but JC refrigeration has systems to revive the frige,if the box is good it can be fixed.

It's already out and the wife decided on a residential fridge. If anyone wants the old one, let me know. Zip code is 30215. I can take some pictures of it. I'm not sure which model it is, but it looks like it's a combo absorption/compressor. It had propane, 12v and 120v running to it. Some of the wiring is disconnected, the previous owner started to troubleshoot it, but didn't get very far. I didn't mess with it because we were planning on replacing it.
1991 U300 Side Aisle 6V92 Silver #3897
2004 U320 40' #6246

Re: Purple wires behind fridge?

Reply #3 –
I have the same year, length and floorplan.  I replaced the old Dometic RM4804 with a residential frig.  I don't recall any purple wires.  Might be added by a former owner. 

The old Dometic was a premium 3 way unit.  Going down the road it used 12 volts (ignition power).  When you shut off the engine it assumed you might be fueling up so it didn't switch to propane for 30 minutes.  It had a built in 120VAC ice maker with the compressor in the bottom of the unit.  The ice maker had an on/off switch on the front panel and had a separate outlet that was on the original Traytronics inverter.
If I recall it set the priority for power:
1) 20VAC,
2) 12 volt
3) propane
I had mixed feelings about replacing it but with the new solar and inverter technologies and the extra space it made sense to go residential; plus it seemed to be at it end of life and struggled to keep cool.
John Fitzgerald
1991 U300 (SAI) Side Aisle Island Bed 40'
Detroit 6V92 with Allison Retarder
Meridian (Boise), Idaho

Re: Purple wires behind fridge?

Reply #4 –
Our '93 U300 also has a set of purple wires leading up front from the fridge area but not connected to anything. I coiled them and put wire nuts on the ends. No idea and I don't see them in the schematic.

Pierce
Pierce and Gaylie Stewart
'93 U300/36 WTBI
Detroit 6V-92TA Jake
1140 watts on the roof
SBFD (ret)