Refrigerator coils question

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hockeybuff

Member
Joined
Mar 1, 2012
Posts
23
Temps in my refrigerator and freezer over the past 3 months have been steady and about where they should be.  During the first two months there was only minimal icing on the coils.  During the last 2 weeks, there has been a huge buildup of ice on the coils yet no change in temperature or in the settings.  Is this something to be concerned about?

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Howard & Patti  -    Buffalo, NY
2008 Winnebago Outlook 29B Class C, 2012 Ford Fiesta (toad)
 
It sounds like the humidity in your area has increased.  With more humidity in the air every time that the door is opened you admit "damp air" into the box.  When you close the door to the refer the damp air collects on the refer fins.  You can deter this in a few ways.  Open the door to the refer less often and for shorter periods, run a dehumidifier in the rig, or put an small refer fan in the box to keep the air moving.  It will help, but not eliminate it completely. 
 
As SargeW says, more humidity is getting into the box. Humidity naturally increases as summer approaches, but you might also have a new air leak in the door seals that is allowing moist air to enter. Your cooling unit is keeping up with the extra warmth but the moisture is condensing on the coils. Check for air leaks around the door - there is often moisture on the surface by the rubber seal. Another check is the "dollar bill test". Close a fairly new & crisp dollar bill in the door at various points and see how much effort it takes to pull it out. You should feel definite resistance if the door is sealing tightly as it should.
 
Our Norcold 1200 was doing that and our RV tech shimmed up the doors by using spacers under the hinges.


You might check for clearance between the top of the doors and the frame using Gary's dollar bill method.
 
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