Testing Power Control Board on Norcold RV Refrigerator

This video will show the viewer what steps can be taken if the power is not coming on for a Norcold RV absorption refrigerator. The steps require diagnosing the power control board and optical control board and this video takes the viewer through these steps.

[kellykane]

Thank you so much for this video! I am a woman with a 5th wheel and when my same model fridge suddenly had no power, I wasn't sure what to do. I used your video as a visual reference and determined it was a simple solution of replacing the little brown "5" fuse. Thanks for your help! You saved me calling an RV Tech and probably a few hundred dollars for a simple fix!

[barbaralorell]

Thank you so much! I had inconsistent temps and was going to try disconnecting the thermistor; when attempting this, I removed one of the orange connectors. I accidently touched the light with it -- the light flickered for a split second. Then no more power to the display or to fridge. I threw my hands up in the air, saying I probably need a new fridge, and since I'm selling soon, I'm just not going to replace it. I ordered a mini fridge from Home Depot. After a few days, I calmed down and did online research. Your video was the most helpful to me in accessing the control board -- how to remove cover, etc. I was hoping and praying that the 5amp fuse would be blown. Hooray! It was. I replaced it, and all is good. I still may have issues with thermistor, but replacing it will be cheap and easy. For now, fridge is fine. I also learned how to do the diagnostics on the display panel. That way I can monitor what temp the control board is getting from the thermistor and compare it to the food compartment thermometer. They should be about 10 degrees apart. Returned mini fridge to Home Depot :) Thank you, again, for this really great, helpful video!

[Le_Comte_de_Monte_Felin]

Maybe not a big thing for you but for me, just seeing the 12vdc leads attached to the board, still color coded, is going to help so much!

[jackhale]

Thank you for this video. Ready to learn how to test optical control board. My Norcold 1200 LRIM has stopped working and I have checked everything up to this point.

[robind.]

When are you going to post a video for checking the Optical Control unit on the fridge?

[fadeddeception]

Hello and thank you for this tutorial. Can you do a tutorial on the optical control board of fridge?

[youcandoitrv]

The two big red connectors with black and yellow leads are 120 Volt Heaters. Definitely look up the service manual and be sure of your understanding for safety sake. Call technician if necessary.

[BrianB]

Thank you so much for your videos. God Bless! I could not find the video for testing the optical control board? But I'm assuming if the other two tests for the main control board we're good then it must be the optical control board?

[fadeddeception]

Hello and thank you for this tutorial. Can you do the tutorial on panel of fridge?

[HayabusaRydr]

No reason to take out fuse. Check voltage on each test point or use ohm check on test points.

[youcandoitrv]

I’m about half way through display board video. Everything I knew about refrigerator came from study of service manual.

[bencrockett]

Thanks for the great instructional video. I have the same issue and your diagnostic help has allow me to follow the power source all the way to the display board but that is where I am stuck. How do you check for connectivity on the wires from the Control board to the Display board?

[josephunthank]

Thank you for this video. The display on my Norcold 3150 just went out. I will look at the power board tomorrow. Have you posted the video for checking the display board? If not, do you have any suggestions or know of other videos for this?

[mkthomp]

Hi where is the separate video for testing the optical board?

[osieldelgado]

Hey did u do the display testing. I have a short at the fuse. Will ur test work without a working fuse.

[bossturbo]

I don't see the other video on your channel

[roberth]

What are the two big red connectors on the board?