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Topic: Refrigerator question (Read 408 times) previous topic - next topic

Refrigerator question

I am testing my dometic RM7832 in our 97 U320.  Refer was/is as some here say is not as cold as a  household refer normally. 

I remember new the single door dometics were zero and 37 at the mid point on the thermostat setting new.  What changes?

Hmmm. 

My pro service tech used to clean the burner tube with a small wire brush. 

Hmmm.

Looked at my 17 year old burner tube and the slots in it were slightly closed from rust in the opening.  Noticeable that they were restricted and not parallel.

I used a small flat blade screwdriver to restore the openings width.  Maybe overly large due to rust. 

Ordered a replacement burner tube as a later test unit and replacement.  Found a near new pull off from laurel hurst for $20.  And ordered a new #76 jet for the unit also.

Have not verified the temps after the burner tube restoration but the flame size is carefully calibrated to the refer I assume.

Less flame.  Less cooling?  Wanna bet. 

I looked at Barry's specs and Foretravel used a compressor model two door refer through 2001.  2002 the dometics had no compressor anymore.

Lots of complaints on the 1292's I think.

So 97-2001 has the option to turn on a compressor in the refer if you needed extra cooling.

Tried mine on shore power last week.  Refer on 110 v and added the compressor.  Had to turn back the thermostat from 4 to three as the entire box was very cold.

Still testing but I am wondering how many of us have rusted partially closed burner tubes?

Mine was. 

Seems expensive to install a household refer as I already have a compressor/adsorbortion setup already. 

Will monitor its now temp tomorrow at #3 and then #4 if necessary then if needed add the compressor and monitor its power consumption off of the inverter as it is wired to run off of it....

Bob
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: Refrigerator question

Reply #1
 One of the main problems with the burner tube is rust falling into it from above (chimney) and as you say the slots get all cruddy and close up. I have serviced a lot over the years and all it needs is a strw long enough to be able to blow the rust out (from where the propane gets "injected" and to gently clean those slot edges. The flame should be a steady blue colour equal in each slot, with a nice sounding "roar"
This should be done a few times a season.
JohnH
Coachless, now use aircraft. 2003 Ford Travelair TC280 class C. Super shape. Just for 1 yr .
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2000 U295  36' Cummins 350 c/w Banks Stinger, Resonator upgrade,Solar, LED lites.Residential fridge with slide out pantry. Build 5674. Sold
ex 92 GV 022C ored Cummins. Sold
ex 95 GV240 cat 3116. Sold
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jhaygarth@aol.com    SKP #130098
treat everyone as you would like to be.

Re: Refrigerator question

Reply #2
One of the main problems with the burner tube is rust falling into it from above (chimney) and as you say the slots get all cruddy and close up. I have serviced a lot over the years and all it needs is a strw long enough to be able to blow the rust out (from where the propane gets "injected" and to gently clean those slot edges. The flame should be a steady blue colour equal in each slot, with a nice sounding "roar"
This should be done a few times a season.
JohnH

Cleaned countless refers at rally's from the rust from the chimney over the years.  Learned to pound on the refer before cleaning the crud off.  More used to fall out. 

Never had a old enough one to show rust in the slots.  Bigger flame on the side by side might be why it shows more rust in the actual slot areas only.
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: Refrigerator question

Reply #3
Hmmm. In mine compressor was only 110, was told by repair guy (probably wrong) Was for ice maker and freezer only
Tim Fiedler    2025 LTV Unity MBL on Order
2000 Chevy Tracker 2 Door Convertible 4WD Now lifted 4.5"
1985 Citroen 2CV6 Charleston
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1980 48' Westport MY (!/4 Share)

 

Re: Refrigerator question

Reply #4
Hmmm. In mine compressor was only 110, was told by repair guy (probably wrong) Was for ice maker and freezer only

Yes for sure 110volt.  Enough capacity to carry over somewhat to the refer side it seems.
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4