Roper refrigerator fridge part warm?

1st of all the model number is very incomplete. 2nd thing yes you should clean the coils, 3rd thing. If your unit has defrost heaters then they have gone bad or the door was not shut all the way at some time or another and frost built up on the coils for you to have the fan not working and having to defrost it manually. The vents might be frozen shut that is why they are not working properly. get the model number go to www.searspartsdirect.com and check the parts break down it might show you how the vents open and shut.