RV Repair: RV REFERS ?, thermister, bad hope

Question
I MAY HAVE ALREADY ASKED YOU THIS BUT NOT SURE !  I HAVE A DOMETIC RM 2652 W/O THE ADJUSTABLE T-STAT.....THAT FREEZES THE LOWER SECTION.  I REPLACED THE THERMISTOR BUT STILL SAME PROBLEM....COULD THE LOWER BOARD BE BAD ?  OR WHAT ELSE COULD CAUSE THIS PROBLEM ?  

             THANKS  JIM

Answer
Jim,
   The only thing that will cause your refrigerator to freeze in the lower section is either the thermister not telling the circuit board to shut down the heat source to the boiler, or the board not responding to the thermister, so yes if you have replaced the thermister and it is mounted correctly and not defective then the lower circuit board is bad.  Hope this helps.

Darren