When a system or component fails before or during an RV trip, it’s essential to recognize the difference between doing just a quick fix on the spot and when to call a professional RV technician.Air conditioning, slides, refrigerators and plumbing are the most common systems that break down given their constant everyday use when travelling. Some can be a simple DIY projects - others not so much. Let’s go over the following points which clearly outline what you can do yourself and when it’s time to contact a certified RV technician.