We have been on the road about a month and a half, and notice that frost is starting to form on the top of freezer unit, and this morning we noticed that some frozen waffles were not so frozen anymore and our ice cream is getting soft. The ref. is on the AC mode right now.
Having always had "frost free" refrigerators at home, I am not too up on how frost build up will affect regular ref. cooling.
Do you think defrosting will solve our cooling issue? Or do I need service?
Frost is an insulator and prevents circulation. Removing it will likely fix your problem. Empty the contents of the freezer into a cooler and open the door with the fridge turned off. Manufacturers all say "do NOT use hair dryer" to defrost fridge but most do it with some caution taken. I use the low setting and keep the drier about 3 feet from the door opening and aim warm air inside to speed things along. Takes about 15 to 20 minutes to defrost that way and about an hour for everything to cool down again.
You can do the same thing with ice build up on the cooling fins inside the fridge with the same cautions taken. Depending on the weather and if we're using the climate control on our fridge, we usually had to do the task after a month to month and a half into a trip.
Good luck / Skip
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