Dometic & Norcold Agree


In this video Mark Nemeth, the technical advisor for the Escapees RV Club, explains how and why Dometic and Norcold refrigerators fail if they are not protected with the Fridge Defend by ARP.

We dedicate this page to the memory of our friend and mentor Roger Boisjoly, safety cannot be compromised.

Why Dometic & Norcold Fridge Fail Video

This video goes into the details of why cooling unit boiler overheating not only destroys Dometic and Norcld RV refrigerators, it also explains why the Fridge Defend improves reliability, efficiency, and safety.

Please click here for Mark Nemeth's RV Gadget Box article May 2014

Please click here for RV Gadget Box article May 2017

Dometic and Norcold Facts

Just the Facts - Further Videos and Proof as to Truth

Click here to see a time-line of events that shows through patent and fire history that the problem is a fact that remains unaddressed by the manufactures.

Click here to see letter from Norcold to the NHTSA explaining the warp (thermal stress) of the boiler.
FYI: Norcold calls this event "low cyclic fatigue failure" in the boiler.

Click here to see video showing entire fluid flow within the Dometic or Norcold cooling unit.

Click this link to see boiler temperature and pressure test data video.

Click here to view video with Fridge Defend and a cooking pan, as long as there is fluid in the pan, it does not overheat.

Passivation: "A thin film consisting of chrome and iron oxides (Cr2O3 and Fe2O4) is built up on the surface of the steel tubes and protects the apparatus from corrosion." The blue layer shown on the inside of the boiler tube in the video is technically a passivation layer. We name the layer a "rust prevention layer" as this is more of a layman's term.

* The animations on this page are not to scale, they are amplified for visual effect so as to better clarify the events that occur. The events depicted in these videos are not sequenced as they actually occur, rather they are presented in steps so the viewer can better understand the science behind the method of failure. Most of the events in this video occur simultaneous, this is why the Fridge Defend has a 2 second reaction time to thermal events and approximately +/-2ºC accuracy at typical boiler temperatures.