What kind of controller does a Norcold 811 use?

The photo to the right is a Norcold 811 cooling unit with the Fridge Defend mounted on the factory refrigeration controller cover. The Norcold, N8xx & NXA8xx all have slightly different controllers, but the principles behind the operation and control of the different models is all similar.

How does the Norcold refrigerator work in auto mode?

I have a Norcold N811RT S/N 16620149 it cools fine on AC in auto but will not work on gas, either in auto mode or if the switch is moved to gas the green light will flash 4 times. If I turn it off and then back on in auto with shore power it will cool and work.

Where is the Power Board on a Norcold refrigerator?

There will be an access panel on the outside of your RV, directly behind where the refrigerator sits. From there you will have direct access to the power board. It is a black rectangular cover that will have wires going to it. There are a few screws holding this cover on.

Is the Norcold n841.3 a 3 way fridge?

The fridge in this photo is a Norcold N841.3, where the ‘.3’ indicates that this is a 3-way fridge. Please note that there is a black and yellow pair of wires going to the electric heating elements. One wire pair is for 12VDC heat source and the other is for 120VAC heat source to drive the refrigeration process.

What kind of power does a Norcold refrigerator use?

Norcold gas absorption refrigerators operate off of 12V DC power (battery power). The AC plug that you see in the back is only powering your AC Heater/s that will cool the refrigerator when running it on AC or Auto Mode. The 12V DC powers the rear power board, the front control board, and the interior light.

What’s the difference between a Norcold and nxa8xx refrigerator?

The Norcold, N8xx & NXA8xx all have slightly different controllers, but the principles behind the operation and control of the different models is all similar. The fridge in this photo is a Norcold N841.3, where the ‘.3’ indicates that this is a 3-way fridge.

What to do if your Norcold refrigerator won’t turn on?

Simply follow the two lines coming from your 12V DC + and – terminals on the board to the right. You may have a push button switch that has gone off. For either one of these situations, it’s important to take the proper safety precautions. Make sure there is no yellow powder or residue on or near the cooling unit or any smell of ammonia.

Is there such a thing as a Norcold refrigerator?

AC/DC model Norcold refrigerators are fairly simple in troubleshooting. You will know that you have one of these models if the refrigerator has a compressor in the back (typically installed in boats and trucks). Most RV’s have gas absorption refrigerators and these can be more troublesome since there are more components that affect the cooling.

Why is my Norcold refrigerator not cooling properly?

The first thing to know is that the cooling units on every Norcold gas absorption refrigerator are gravity operated and MUST be level in order to run properly. The second thing you need to understand is that the refrigerator will not cool properly if it is too hot outside (typically over 90 degrees F ambient).

Can a Norcold refrigerator be used in an RV?

Most RV’s have gas absorption refrigerators and these can be more troublesome since there are more components that affect the cooling. The first thing to know is that the cooling units on every Norcold gas absorption refrigerator are gravity operated and MUST be level in order to run properly.

What should boiler temp be on Norcold refrigerator?

I have a Norcold N821 and just installed the Amishaire coils with a ARP 3.1 w/fan, it works great on electric but is tripping on gas. Boiler temp is always around 422-444f when I cycle through the menu. The boiler probe is mounted about 3″ above the electric element as stated in the manual and well insulated.

Where to find Norcold power board model 628661?

To determine which product fits your particular model you must know the model and serial number of your RV refrigerator. This can be found inside your refrigerator on the right-hand side on a manufacturers label. Norcold Power Board 628661 (new style board fits most models!)

What kind of Norcold Refrigerator parts do I Need?

Norcold N811/ N821/ N822/ N841/ N842/ N843 Parts and Products for Sale! 7.5 cubic feet of storage – largest capacity & lightest weight in its class. The following parts fit the Norcold N800 model refrigerators. To determine which product fits your particular model you must know the model and serial number of your RV refrigerator.

How is the Norcold control box wired to the RV?

From the factory the Norcold control box (2) is wired directly to the RV power supply (1). We show green for ground and red for +12VDC, all of the manufactures use different wire colors so your wire colors may vary.