Troubleshooting | Dometic Factory Settings | Norcold Factory Settings

If troubleshooting of the refrigerator is necessary, to meet Magnuson Moss Warranty Act for dealer repairs, this page tells how to bypass the Fridge Defend by ARP to restore factory settings.


The following discussion is divided up into the different ARP Controls. The v1.0 and v1.1 are in one section and the remaining Fridge Defend controls are in the next section. Because no one can prevent you from looking out for your own safety -- we love the USA!

RV Relay

How to Restore Factory Settings for Troubleshooting ARP v1.x Control

At times it may be necessary to restore factory settings for your fridge for troubleshooting or repair. The fridge can be returned to the same condition that the fridge came from the factory for either a Dometic or Norcold factory setting simply by bypassing the Fridge Defend by ARP.

This image is for an ARP Control (AKA: Fridge Defend) relay type controller v1.0 or v1.1. The figure shows the wires to disconnect from the ARP relay, and the jumper wire that can replace the relay. If the ARP control has been installed correctly, simply remove both of the following wires from the relay and jumper them as shown. It is optional to use a fuse because most RVs have fuse protection, this fuse is handy and adds level of safety.

1. 12VDC power wire that goes to relay terminal 30.

2. Wire on terminal 87a from the relay to fridge.

3. A jumper wire between the two wires that were removed will fully by pass the ARP relay.

These steps are given here so that one can check both the ARP Control function and the refrigerator.

Restore Norcold RV Fridge

How to Restore Factory Settings for Troubleshooting ARP v2.x up to the Current Controls

CAUTION: Do not short/ground the ARP yellow wire, follow the sequence given below. Remove RV fridge fuse first to prevent shorts.

The ARP controls without external relay makes it supper easy to restore your fridge to its factory settings.

1. Unplug the red 12VDC-IN wire that sends power to the ARP Control.
NOTE: All RV manufactures wire their refrigerators differently, and using different wire colors, one has to determine on their own which is the proper power wire.

2. Next unplug the ARP Control +12IN yellow wire sending power to your factory safety devices or fridge control. Restore power to your fridge by connection of RV Power 12VDC-IN to factory +12IN that would ordinarily power your fridge.

Boom -- Restoration Complete!

RV Happy Camper

Benefits of Restoration of Factory Settings

Our philosophy is simple; we want you to be happy campers! Anything that would slow down your fun is just not acceptable to either our customers or us! We will list two benefits to bypassing the wiring:

By bypassing the ARP relay, you can immediately determine if the Fridge Defend is causing some kind of problem that results in your fridge not running. Yes, it is just this simple to troubleshoot!

Warrantors cannot require that only branded parts be used with the product in order to retain the warranty. But, if an authorized factory service center refuses to work on your product, and the non branded parts have been bypassed to factory settings, they are making your day unnecessarily unhappy.

We are Proud to Live in the USA!

The Magnuson–Moss Warranty Act (P.L. 93-637) is a United States federal law, (15 U.S.C. § 2301 et seq.). Enacted in 1975, it is the federal statute that governs warranties on consumer products. The Act was sponsored by Senator Warren G. Magnuson of Washington and U.S. Representative John E. Moss of California, both Democrats, as well as Senator Frank Moss of Utah, who co-sponsored it with Magnuson.

Only in the USA can you buy a product like the Fridge Defend, which will help protect your fridge investment, and be protected by law from unscrupulous venders.

For further reading please see: Magnuson–Moss Warranty Act (P.L. 93-637) .

How Long Would My Original Refrigerator Warranty Be?

Due to the issues that the ARP Control solves, most original equipment manufactures limit their warranty to 1 year.

Click here for Norcold's 1 Year Warranty