Forum Discussion

agesilaus's avatar
agesilaus
Explorer III
Oct 06, 2020

Norcold N811 fridge-no power

OK we have a Norcold N811 and it was working fine a few weeks ago. We powered it fdown when we got home. When I tried to power it up again to get ready for another trip the display is blank and it does not respond to the on/off switch.

1) 12V Fuse is OK
2) Checked 120V outlet that the fridge is plugged into with an outlet tester and it is fine.
3) Propane is OK, runs stove burners and oven OK

so this seems to come down to the circuit/power board.



I don't know where the power board is tho, is it inside this black box in the outside access hatch?

Also how can you get to the on/off switch, there doesn't seem to be any way to open the panel. Do you have to pull the fridge out from the wall?

Thanks for any help or suggestions.
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    Oct 07, 2020
    Itinerant1 wrote:
    This is what's behind that black plastic box.Arrows are to the fuses.



    That doesn't look like a circuit board for the Norcold N811 like OPs fridge model
  • agesilaus's avatar
    agesilaus
    Explorer III
    Oct 06, 2020
    Flute Man wrote:
    You might make sure that the 12 V battery is not discharged.


    I have a bank of four six volt golf cart batteries and have a volt meter on the 12V bus. All is well there and all the other 12V gear is working. I'll pull that black box off in the morning to check the fuse and I'll check voltages on the board too. I'll call the mobile RV guy if I don't figure it out in the AM.
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    Oct 06, 2020
    Have to have 12VDC TO the fridge before ANYTHING will work
    No DC...NOTHING works (Display, control panel, interior light, AC Element etc)

    That Black box ....cover for circuit board
    On the Circuit board at couple of fuses
    Glass 5A for the AC Element
    Auto Blade 5a for ALL DC

    Also the RV Main DC Fuse goes to 12VDC+ Terminal on circuit board (Yellow wire?) and GND1 Terminal (Neg) S/B White wire

    See Pg 11 for DC information
    See Pg 45/46 about removing cover on lower circuit board AND the display control panel
    N6XX/N8XX Service Manual


    Picture of a Norcold N6XX/N8XX circuit board

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