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That is a no cooling code. Is the fridge level? If not, level it up and turn the fridge off and let it sit for at least two hours and then turn it back on again. Take a look around the burner area once you open up the ouyside inspection cover and tell me if you see any yellowish debris around that area. That would be a sign of cooling system failure and would require a rebuild. That usually costs about $900 or so. Pllease get back to me if you need more as all follow ups are included in our fee.
Did this resolve itself or do you need more on this? Hopefully it is o.k., but I can supply you with a reset procedure if it happens again.