My guess would be that there is only one outlet there, and the ice maker is plugged in. Open the service door on the outside, look to your left (a flashlight might help), and you'll probably see one cord plugged into a single outlet, the other coiled and not plugged in. Seems like on a previous trailer I asked the mfg, when on a factory tour, why they didn't put a duplex outlet there and was told that UL didn't want the circuit overloaded by someone plugging in a high current draw item. But, if the factory is installing a fridge and an ice maker then it should be a duplex, and someone on the line should realize that a 2nd outlet is needed - and not just coil the wire and forget it. My dealer forgot to order a few things, and the factory missed a few things too, BUT, this is the one thing that I just don't understand being missed. How can anyone with 2 plugs and 1 outlet not say "hey, this isn't right. We've got to correct this".