Pat60 Report post Posted March 13, 2013 We have Norcold 121X Series fridge so I don't know if it is a 1200 but we have had a recall on it and we took the coach in for that. We have gone full time since Dec 27, 2012 and the fridge keeps frosting up...we just defrosted it a couple of weeks ago and it is frosting up again. Any sugggestions??? Also how do you find out if you can put in a regular fridge in your coach...we have a Tiffin Phaeton '07??? Thanks, Pat Share this post Link to post Share on other sites
wolfe10 Report post Posted March 13, 2013 Pat, Frost is a normal part of a NON frost-free refrigerator. Causes of excessive frost buildup: High humidity Lots of opening/closing refrigerator Poor door seal (use the "dollar bill" test all around the door-- there should be equal drag of the bill all around the door. If looser in areas, adjust door). Missing condensate drain restrictor (an open condensate drain hose will allow warm, humid outside air into the refrigerator). Defrosting every couple of weeks is not abnormal, and is a good idea any time ice exceeds 1/4" thick, as thick ice on the refrigerator fins/freezer plates degrades cooling performance. Share this post Link to post Share on other sites
egthiem Report post Posted May 24, 2014 Reset our Temperature box today with a magnet also after reading up above. My husband was just about to give up, thinking the box was bad. He decided to open up the box and held the magnet over the round transistor for over 1 minute and then it reset. Thank you to others who wrote what to do. Share this post Link to post Share on other sites
