Skip to main content ↑ ↓
Topic: Dometic 1282 Refrigerator (Read 673 times) previous topic - next topic

Dometic 1282 Refrigerator

I have just de-winterized my 2001 U320 with a Dometic 1282 refrigerator and it will only run on gas and not shore power or the generator.  The plug inside the outside hatch has power and the plug is clean.  Any thoughts??

Speedbird 1.
2001 U320 Build #5865
Daihatsu Rocky Toad
VW Touareg
'82 F100 Stepside
Beech' Debonair

Re: Dometic 1282 Refrigerator

Reply #1 –
Double check the circuit breaker at the front end of the bed.
Roger Engdahl and Susan Green
2001 U320 3610 #5879 (Home2) - 2014 Jeep Cherokee or 2018 F150
Hastings, MN

Re: Dometic 1282 Refrigerator

Reply #2 –
Quote from: Roger & Susan in Home2 –
Double check the circuit breaker at the front end of the bed.

Are you suggesting checking the 120 Volt breakers? Why? They have already verified 120 Volts at the receptacle into which the refrigerator is plugged.
David and Carolyn Osborn
1995 U320C SE 40' Build 4726 Feb 1995
FMCA 147762
Motorcade 17186

Re: Dometic 1282 Refrigerator

Reply #3 –
Love the grammar, D.J. 8) . I got nuthin unless the eyebrow is set to gas only.
1994 U280, Build 4490
Deming, NM.

Re: Dometic 1282 Refrigerator

Reply #4 –
Thanks Roger,
No go.  I tripped and reset the breaker with no change.
I checked the power supply on the outside under the vented cover and I have power at the receptical???
Speedbird 1
2001 U320 Build #5865
Daihatsu Rocky Toad
VW Touareg
'82 F100 Stepside
Beech' Debonair

Re: Dometic 1282 Refrigerator

Reply #5 –
In the 2001 U320 there are two 120v duplex outlets inside the vent panel behind the refrigerator. One on circuit 3 is powered by the inverter, generator or land line and the other outlet on circuit 1, by land line or generator only. Speedbird1 didn't say which one he checked.  The ice maker is generally plugged into Circuit 3.  If the transfer switches didn't kick in or The Circuit 1 breaker is tripped,  Circuit 3 will show 120v but the refrigerator on Circuit 1 will not run on land line or generator.  The breakers are on different panels. Common sense suggests start with the obvious. Mr Osborn's coach may be different.
Roger Engdahl and Susan Green
2001 U320 3610 #5879 (Home2) - 2014 Jeep Cherokee or 2018 F150
Hastings, MN

Re: Dometic 1282 Refrigerator

Reply #6 –
Doesn't solve your problem but according to John(?) the inventor of the ARPrv | ARP Control | RV Refrigerator | Dometic Recall | Norcold Recall | RV... absorption refrigerators are much more efficient on gas than on electric. The tiny electric heater used to heat the ammonia can't compare to the heat the propane puts out. I've switched to only using propane unless I'm low on propane. So you don't need to be in a hurry to fix unless you are low on propane. :)

see ya
ken
The selected media item is not currently available.ken & dori hathaway & Big Agnes
🍺1992 U300 GrandVilla WTBI #4150 FOT FBP 2011
✨6V-92TA DDEC Parlor Coach 350HP Series 92
🏁2011 Nissan XTerra Pro-4X

Re: Dometic 1282 Refrigerator

Reply #7 –
I think there some fuses under the cover of the control board in the back the frig might check them
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country

Re: Dometic 1282 Refrigerator

Reply #8 –
The next thing I would check is the heater element.  I've had two go bad over the years.  It is stuck into a pipe along the side of the vertical coolant tube above the propane heater.  Usually when if goes bad, the heater element welds itself into the tube.  There is usually a spare empty tube to put a new heater element into.  You can pull the element wires off the control board and for 120V there and check element resistance.

Rich
Rich and Peggy Bowman
2002 U270 3610 WTFS, build #5939--"Freedom"
2022 Jeep Grand Cherokee Summit 4xe
SMI AirForceOne brake system
PakCanoe 15

Re: Dometic 1282 Refrigerator

Reply #9 –
OK Guys,

Thanks for the various hints.  My day will be full.

I only checked the upper power outlet under the outside cover.  On mine it is White and there is a Black one below it so that will be my next check once I get up and running. Although with the upper White one having power I feel that it is now a refrigerator unit issue??  I have something to do today, whoopee!!!  Along with everything else!!

Many thanks to all.

Speedbird 1.
2001 U320 Build #5865
Daihatsu Rocky Toad
VW Touareg
'82 F100 Stepside
Beech' Debonair

Re: Dometic 1282 Refrigerator

Reply #10 –
Quote from: speedbird1 –
I only checked the upper power outlet under the outside cover.  On mine it is White and there is a Black one below it so that will be my next check once I get up and running. Although with the upper White one having power I feel that it is now a refrigerator unit issue??

It sounds as if you may have a refrigerator with a built-in ice maker and may therefore have two power cords from the refrigerator (one for the refrigerator and one for the ice maker). If that's the case then you'll need to determine which is which and the source of power for each outlet.
David and Carolyn Osborn
1995 U320C SE 40' Build 4726 Feb 1995
FMCA 147762
Motorcade 17186

Re: Dometic 1282 Refrigerator

Reply #11 –
Speedbird1

I have attached the rm1282 owners and installation manual.  See pages 12,14 and 16.  There are two fuses, a 3A for the control circuits and a 5 Amp for the 120 v heater controls.  They appear to be both mounted on the main board.

In mine as in yours (same year, same model, same refrigerator) there was a brown outlet and a white. The ice maker power cord plugs into the one that includes inverter power, circuit #1 so that making ice continues without land line or generator.  I think it was the brown one.  With no land line or generator and your inverter on one will have power and the other will not.

Other years may be different or have different refrigerators that may not be relevant to your specific year and refrigerator.

Hope this helps.
Roger Engdahl and Susan Green
2001 U320 3610 #5879 (Home2) - 2014 Jeep Cherokee or 2018 F150
Hastings, MN

Re: Dometic 1282 Refrigerator

Reply #12 –
Thank you roger,

I appreciate your time to post the manual.  I will now go and have a look at the fuses now that I know where they are.

I will return!!  With good news, I hope??

Speedbird 1.
2001 U320 Build #5865
Daihatsu Rocky Toad
VW Touareg
'82 F100 Stepside
Beech' Debonair

Re: Dometic 1282 Refrigerator

Reply #13 –
Eurecka,

I found it thanks to the diagram posted by Roger, and for all the other inputs, thank you.  This forum is a wealth of info when you need it.

I finally got the cover off of the board in the outside compartment under the vented cover and there were the two fuses.  Took them out and tested them, both good???  Cleaned the ends and replaced them, and guess what??  It all works as advertised!!

One more minor point is which outlets are the 'fridge and ice maker plugged in to??  I have two in the outside compartment, White upper, and Black/Brown lower.  A minor point as I don't use the icemaker.
Speedbird 1
2001 U320 Build #5865
Daihatsu Rocky Toad
VW Touareg
'82 F100 Stepside
Beech' Debonair

Re: Dometic 1282 Refrigerator

Reply #14 –
Test the two outlets with the coach not plugged in, generator off and inverter on. The ice maker power cord plugs into the one that includes inverter power, circuit #1 so that making ice continues without land line or generator.  With no land line or generator and your inverter on one will have power and the other will not.  Circuit # 1 gets power from the inverter. You want the refrigerator plugged into circuit #3 which only has power when the coach is plugged in or the generator is running. The refrigerator senses the 120 volts and switches from gas to electric.  You don't want that happening on an inverter powered circuit.

Here Is a picture from when I put in a res refrig.  The two outlets one above the other are circuits 1 and 3.  You have to test to determine which is which.
Roger Engdahl and Susan Green
2001 U320 3610 #5879 (Home2) - 2014 Jeep Cherokee or 2018 F150
Hastings, MN

Re: Dometic 1282 Refrigerator

Reply #15 –
Thanks again,

In my coach the top outlet is Circuit #1 and colored White and the lower one, colored Black/Brown is circuit #3 for the 'fridge.

Thanks again everyone.
Speedbird 1
2001 U320 Build #5865
Daihatsu Rocky Toad
VW Touareg
'82 F100 Stepside
Beech' Debonair
 

Re: Dometic 1282 Refrigerator

Reply #16 –
Help is a good thing.  It is why we are here. It is great when the fix is something simple.
Roger Engdahl and Susan Green
2001 U320 3610 #5879 (Home2) - 2014 Jeep Cherokee or 2018 F150
Hastings, MN