Norcold N611RT gets cold then quits

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Stormrider51

Member
Joined
Feb 25, 2012
Posts
22
Location
Cedar Creek, TX
The fridge in our Jayco has worked fine for a year.  Then it quit cooling.  Or not actually quit, but the main compartment runs at about 56 degrees F and the freezer section allows frozen items to thaw.  If I shut it off overnight and then turn it back on it will work fine for 24 hours or so.  As a matter of fact, it gets too cold.  Then the temps climb again.  I noticed that the clip that holds the sensor on the fin at the back of the main box was rusted.  There was rust on the fin itself.  I removed the clip and cleaned away the rust before putting it back in place.  I now have the fridge turned back on.  Does anyone think this will solve the problem?  After reading some other posts from people with a slightly different problem I'm thinking the sensor itself may be bad.  Or do I have another problem entirely?  Any help gratefully accepted.

John
 
It doesn't sound like a thermistor problem to me.

Are any of the lights on the control panel flashing (roughly three second intervals) when it stops cooling?  The ON led will flash steadily is the thermistor has failed and the fridge is in "back-up mode", which means the cooling unit runs constantly.  In that mode it should over-cool but not quit. A set of 5 flashes every three seconds indicates the cooling unit has ceased to cool (no cooling fault).

This service manual will help:
http://bryantrv.com/docs2/docs/ncoldnnewnseries.pdf
 
Gary... thanks for the advice.  No, the green light doesn't flash.  That's one of the first things I looked for.  I just went and got a new thermister as that would be the quickest and cheapest fix if it's the problem.  We are full-time RV'ers so taking this rig in for repair would be a problem.  Thanks for the link, too.  I'll go read it now.

John
 
I don't think a thermistor failure could ever result in the cooling unit quitting and warming up.  But maybe you will get lucky.

Could be a controller circuit board, however.
 
Thanks again, Gary.  I do appreciate the advice.  I'll know in a few hours.  Right now it is cooling very well and interior temp is dropping but that's what it has been doing before the interior temps start to climb.  Like I said before, we are fulltime RV'ers and parking this thing at a dealer for repair is going to be a problem.  I'd prefer to handle this myself if possible.

John
 

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