New Fridge - no power

Check your 12v connections behind your fridge, maybe one of the wirenuts or connectors vibrated or worked loose.  Also check to make sure the wires are firmly attached to the fridge connectors.  On mine there are only 2 12v wires that split into 4 wires that connect to fridge.

TimK  Worst case scenerio - purchase a new fridge - from yours truly.  Look under the General Camping tab, in the campers flea market.  Brand new $ 450 and you pay for shipping.

TimK, this may be a really dumb question, but have you confirmed that your 12vdc power supply to the refrigerator cooling function is live?  It's been a while since I installed the replacement refrigerator in our 172, but when I did, I replaced the conductors for the 12v refrigerator operation [as opposed to the light weight wire to run its circuit board] with much heavier wire.  If my memory serves me well, the 12v power to for the refrigerator computer is not on the same fuse/circuit as the 12v power to run the cooling function of the refrigerator.  So you may have 12v to the refrigerator's circuit board, but no power to the circuit for the 12v cooling operation.  

So after the brow board replacement the propane mode quit operating? It had already quit working in 12V mode? Did you confirm 12V is available for the heating element as la suggested? Have you confirmed propane is on and available?

I’ve never tried this but you might want to see if you can get the fridge into service mode and try to force it into each mode of operation and see what happens.

http://bryantrv.com/docs2/docs/Service%20Manual,%20RM8xxx.pdf

Ok sorry, two different problems from two members, got me confused. You have 12V to the controls or nothing would work. The 12V mode is easier to troubleshoot than propane, all it is is a heating element similar to the 120 Vac one but lower output, so I’d start there. Did you confirm you have voltage available to that as lostagain suggested? Also you can try the service mode and see if that tells you anything.