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Thread: Dometic RM1350 Operation

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    Senior Member Barry Crocker's Avatar
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    Dometic RM1350 Operation

    We have a 2011 Landmark. Yesterday, we had the doors open for several minutes loading groceries and just normal usage throughout the afternoon. When we opened the doors the temp was at 38 degrees. After we finished putting stuff in the temp was at 43 degrees. Later in the afternoon I noticed the temp had climbed to 48. During this time I had the temp setting at level 4 and running on electric. I then switched to level 5.

    Overnight OAT: 57 degrees
    Inside Coach Overnight Temp: 62 degrees
    Starting Ref Temp at 4 PM: 48 degrees
    At 5 AM Ref Temp: 40 degrees
    Ran on propane overnight. Much slower on electric.
    Put a thermometer on the top shelf in the back.

    As I write this at 9:30 AM the temp is still at 40 with the thermometer inside reading 41.

    BTW, all door seals have been replaced. Can't feel any leaks through the door seals.

    Is this normal? We're starting to get concerned.

    Sorry for being so long winded.
    Barry & Joyce Crocker
    Retired USAF CMSgt & SMSgt
    2011 Landmark Grand Canyon
    2007 3500 GMC Duramax/Allison

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    Moderator danemayer's Avatar
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    Re: Dometic RM1350 Operation

    Barry, our 1350 is also very sensitive to losing it's cool while doors are open, and recovery takes hours.

    I try to limit open doors to a few seconds at a time. I also have a battery-powered fan from Camping World to circulate the air inside. I also try to ensure that food is distributed in a way that avoids blocking vertical airflow. And I've read that it's important to not block the area in front of the cooling fins on the top shelf.

    All that said, on '5' we can usually keep the temp in the mid to low 30s.


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    Icantre Member
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    Re: Dometic RM1350 Operation

    EVERY reefer we've had has been wildly sensitive to usage, loading, and outside temps. Yours sounds normal to me.
    Bob & Joyce Krull
    Forest Grove, OR
    2009 Bighorn 3385

  4. Print this Post   #4
    Moderator cookie's Avatar
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    Re: Dometic RM1350 Operation

    You said your temp was 38* when you started loading. Did you check the position of the temperature probe on the left hand side in the refer? It should not be sandwiched between the wall and another item.
    What is the temp in the freezer compartment?
    Also listen for the fans running. There should be two small fans located in the back of the unit. You may be able to see them from the outside. Take off the lower vent panel on the outside and look up.
    We keep our refer stuffed full and don't mind standing with the door open deciding what beverage I am in the mood for. Temp does go up but always comes back down to 34*. We keep it set on #4.
    I installed a baffle near the upper vent on the outside. I think that helped our cooling efficiency. I may have posted pics on this forum. Do a search. If you come up empty and want to see them just let me know.
    Keep us posted with your progress.

    Peace
    Dave
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    Senior Member Barry Crocker's Avatar
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    Re: Dometic RM1350 Operation

    Thanks for all the good information. We'll do some rearranging of the stuff inside and I'll look at getting one of those fans. Might put in some of those baffles as well. Gotta love these forums to get the straight scoop.
    Barry & Joyce Crocker
    Retired USAF CMSgt & SMSgt
    2011 Landmark Grand Canyon
    2007 3500 GMC Duramax/Allison

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    Senior Member Barry Crocker's Avatar
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    Re: Dometic RM1350 Operation

    Dave. Couldn't find pictures of the baffles. Can you send the link please. Thanks.
    Barry & Joyce Crocker
    Retired USAF CMSgt & SMSgt
    2011 Landmark Grand Canyon
    2007 3500 GMC Duramax/Allison

  7. Print this Post   #7
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    Re: Dometic RM1350 Operation

    Dave... I AM SO JEALOUS OF YOU AND YOUR REFER THAT IS WORKING NO MATTER HOW MUCH YOU GIVE IT THE OPPORTUNITY TO NOT WORK. I think you got a "LEMON"..because I think there are more out there like ours than yours. I am still considering an AC compressor type. Come April and May when the ambient temp gets into the upper 80's-90. I will make my decision. Steve and yes the caps means I am YELLING.


    Quote Originally Posted by cookie View Post
    You said your temp was 38* when you started loading. Did you check the position of the temperature probe on the left hand side in the refer? It should not be sandwiched between the wall and another item.
    What is the temp in the freezer compartment?
    Also listen for the fans running. There should be two small fans located in the back of the unit. You may be able to see them from the outside. Take off the lower vent panel on the outside and look up.
    We keep our refer stuffed full and don't mind standing with the door open deciding what beverage I am in the mood for. Temp does go up but always comes back down to 34*. We keep it set on #4.
    I installed a baffle near the upper vent on the outside. I think that helped our cooling efficiency. I may have posted pics on this forum. Do a search. If you come up empty and want to see them just let me know.
    Keep us posted with your progress.

    Peace
    Dave
    Steve & Laurie Dagro
    2008 GMC 3500 SRW D-max
    B&W 18K Hitch
    2011 Bighorn 3670RL

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    Founding VA Chap Ldr (Ret) boatto5er's Avatar
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    Re: Dometic RM1350 Operation

    Hey Dave, I think we both have "Lemons". Mine has been flawless. However, I can certainly sympathize with everyone having problems. The reefer in our last boat was problematic from the start (it was 120/12V only - no propane on a boat). Never worked well on 12V. After 3 years, I put an identical new one in and never had another problem. Same model, worked great for 10 years. The RV models are more complex with the propane (I still marvel at how we can make COLD out of HEAT - and I was a physics minor in college!) Hope you guys can get things sorted out. Based on what I've read here and other places, Dometic has some issues (as does Norcold). Keep us posted please.

    Gus and Debra Funderburg (Founding Virginia, Maryland, and North Carolina Chapter Leaders - Retired)
    Romeo and Juliet (the mischievous Dachshunds)
    2011 Landmark Grand Canyon (Code name - The Landmark Diner)
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    Moderator cookie's Avatar
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    Re: Dometic RM1350 Operation

    [QUOTE=boatto5er;165340]Hey Dave, I think we both have "Lemons". Mine has been flawless. However, I can certainly sympathize with everyone having problems.QUOTE]

    Gus, I am in agreement. I keep hoping that those with problems will find something simple that will solve the dilemma.

    Peace
    Dave
    Dave and Mary
    and C. J.
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  10. Print this Post   #10
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    Re: Dometic RM1350 Operation

    Quote Originally Posted by Barry Crocker View Post
    Dave. Couldn't find pictures of the baffles. Can you send the link please. Thanks.
    Here ya go. The pics aren't the best, but I hope they help. Basically what I did was try to divert the air over the very top fins. The way it was in the beginning, I think the air exited the chamber before hitting those fins. Now it has no choice.

    Peace
    Dave
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