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Yep, when campfire talk comes around to appliance control board problems the name probably mentioned most is Dinosaur. So we called the horse’s mouth or, should we say, the Dinosaur’s mouth. We contacted an RV refrigeration supplier who opined that it “sounded like” a board too, but he couldn’t really be sure without running tests on it. The whole works pointed to a control board failure, or so it seemed. In a safe harbor with another working fridge available we started down through the diagnostics process. We cut our time in the field short and headed back to base camp. Gas didn’t light, and DC simply knocked all the low-voltage power out throughout the rig. Only by turning on the generator and resorting to “shore power” would we get any chill in the box. Sitting on a hot parking lot just outside of Old Mexico our refrigerator stopped being a chill box and the threat of global warming parked itself right in the middle of our kitchen. One time, one of our 3-way refrigerators, which had been a straight-A student, suddenly went rebellious on us. Nowadays, the trouble is when things start getting “buggy” it can be difficult to track down the problem. Of course, “back in the old days” a lot of us had to go outside in the cold or heat to light off those selfsame appliances. “Back in the old days,” as some of us recall, we didn’t have fancy control boards on refrigerators, furnaces and water heaters. If the issue is still unresolved, service may be required.Perhaps some of the most mysterious of RV technical issues surrounds electronically controlled appliances.