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  1. #1
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    Help!! Half of 31MB has no 12 volt power.

    Hello.
    My 31MB is parked at my driveway and just realized I have no lights in the front half of the trailer. I hooked with shore power and I have power in all the receptacles front and back, but no lights and fan in the bathroom. It seemed 12V is dead in the front half of the trailer. Also the thermostat in the master bedroom is dead as well.
    I checked all the fuses and the all seemed ok.
    Any suggestions?
    Thank you in advance.

    Edward.


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  2. #2
    Site Team Second Chance's Avatar
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    If all the 12 volt fuses are OK and you have 12 VDC lighting in the back of the rig, the only other thing I can think of would be a problem with a wire or connector going to that part of the trailer. (The fact that you have 120 VAC in those areas is not connected with your 12 VDC issue.) What year is your RV (under warranty?)?

    Rob
    U.S. Army Retired
    Widowed and very happily remarried
    2012 F350 DRW CC LB Lariat PS 6.7
    2020 Solitude 310GK-R, MORryde IS, disc brakes,
    Sailun LRG tires, solar, DP windows, W/D
    (Previously in a Reflection 337RLS)
    Full time since 08/2015

  3. #3
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    Thank you for reply.
    Itís 2020 and still under warranty and I wouldnít like to drive 2 hours to the dealership but if I canít figure it out then I would have to.


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  4. #4
    Site Team Second Chance's Avatar
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    Quote Originally Posted by 991 C4S View Post
    Thank you for reply.
    It’s 2020 and still under warranty and I wouldn’t like to drive 2 hours to the dealership but if I can’t figure it out then I would have to.


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    If you are that far away from a dealer, consider this: Grand Design is good about authorizing a mobile tech for warranty work when you're not near a dealer. We've taken advantage of that several times. Give GD Customer Service a call tomorrow and explain the situation.

    Rob
    U.S. Army Retired
    Widowed and very happily remarried
    2012 F350 DRW CC LB Lariat PS 6.7
    2020 Solitude 310GK-R, MORryde IS, disc brakes,
    Sailun LRG tires, solar, DP windows, W/D
    (Previously in a Reflection 337RLS)
    Full time since 08/2015

  5. #5
    Left The Driveway
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    Thank your help, Rob.
    I will call them tomorrow.


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  6. #6
    Seasoned Camper
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    Quote Originally Posted by 991 C4S View Post
    Thank your help, Rob.
    I will call them tomorrow.


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    Please keep this group updated. I have the same model year and would love to understand in case we suffer from the same situation. Good luck


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    2020 Reflection 31MB
    2016 Ram 2500 Cummins

  7. #7
    Site Sponsor SolarPoweredRV's Avatar
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    Quote Originally Posted by 991 C4S View Post
    Hello.
    My 31MB is parked at my driveway and just realized I have no lights in the front half of the trailer. I hooked with shore power and I have power in all the receptacles front and back, but no lights and fan in the bathroom. It seemed 12V is dead in the front half of the trailer. Also the thermostat in the master bedroom is dead as well.
    I checked all the fuses and the all seemed ok.
    Any suggestions?
    Thank you in advance.

    Edward.


    Sent from my iPhone using Tapatalk
    Before you make that service call, check to make sure that you have 12v in the rear of the coach and that the battery switch in your hold is actually on.

    Is your outage limited to the bath lights and fan (plus the T-stat)? or does the outage effect more circuits?

    It is conceivable that the bath fan, light, and T-stat are all on the same circuit and that you have lost that circuit. Check your blue fuses in your power distribution panel.
    David and Peggy
    2019 Ford F350 Lariat, 6.7L Diesel, Dually, Long Bed
    Running with 20k Reese Goosebox (Love It) and Ford Factory "Puck" system.
    Stopping with 8,000 lb Disc Brakes and Titan Hydraulic over Electric Brakes system.
    Powering all this fun with 1200 Watts of Solar, two Tesla, Model S, battery modules, 24 volt Victron Inverter.
    2018 Solitude 310 GK

  8. #8
    Seasoned Camper
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    Help!! Half of 31MB has no 12 volt power.

    Quote Originally Posted by SolarPoweredRV View Post
    Before you make that service call, check to make sure that you have 12v in the rear of the coach and that the battery switch in your hold is actually on.

    Is your outage limited to the bath lights and fan (plus the T-stat)? or does the outage effect more circuits?

    It is conceivable that the bath fan, light, and T-stat are all on the same circuit and that you have lost that circuit. Check your blue fuses in your power distribution panel.
    I canít remember. Do those also have a gfi outlet in the bathroom? Could that have tripped?

    NEver mind. I see the issue is only 12 volt. My bad.


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    Last edited by Rgkeaney; 02-25-2021 at 10:03 PM.
    2020 Reflection 31MB
    2016 Ram 2500 Cummins

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