RV model norcold n811rt not cooling

I would check the evaporator coil and see if it is occluded with dust and dirt. Freezing up is usually the result of inadequate air flow over that coil. It looks kind of like a car radiator. You can buy evaporator, and condenser coil cleaner on Amazon. I do this every year to both of mine, it makes a huge difference in output.

time to get the service person back under warranty
don't try repairs yourself as that voids the warranty
because you had to replace the regulator so early after purchase , it suggests problem in the gas lines(dirt or filings) that have blocked up the gas jets . problems on the other circuits could be again installation faults
I'm sure that you will make your dissatisfaction known to the company

Try to unplug it from the battery a few hours and then plug it back in and see if you are now able to select the AC or LP mode. There has been a recall on the 1200LRIM, The defect is a potential cooling unit leak caused during AC electric mode operation. Click on the link below to read more:

http://www.texastriallawyer.com/norcold/index.html

u need to open the thermister up its located on the back on the fin also check to make sure u are getting full 12 volts to the fridge check the voltage at the fuse

Sir, To solve this problem, you must open the compressor area at the back bottom of the refrigerator and chek the temperature of the pressure line. If the temperature is between 55celcius to 60 than its ok. Or else you need to change the refrigerant. I suggest you to contact the service authority.

Thanks for contacting Fixya.

I have done a bit of google research and this code probably means "Not Cooling" Due to a power interruption or sometimes if you do the initial cool down from 12v (instead of gas or AC). There are a couple of other causes but often all the unit needs is a reset. I found some details and instructions here but they don't specify an exact model. There were other details here but they refer to pages that are no longer available..

This should put you on the right track. Just do some more googleing if these details aren't specific enough.

Check you 110 volt breaker in the converter panel to see if it is tripped

in your refridgerator there is an internal thermostat on the cooling fan u can move up or down it should be placed on the last finn to the right looking at the fridge
thanks
cruz
cruz's mobile rv repair

Make sure the thermister is attached firmly to the fins in the back. The boards on a Norcold can be reset a service center familiar with this process is your best bet. It takes disconecting the board and then shorting it out best to leave it to some one who is familiar.