The RV Doctor discusses what causes black streaks along the upper edges of RV sidewalls and how to remove and prevent them.
To have RV Doctor Gary Bunzer help cure what ails your RV, post questions in the comments section. Note that he can only diagnose and offer prescriptions for a select few conditions. Although every effort is made to ensure accuracy, not all responses will apply in every instance. Some situations will require additional inspection or testing. Before following instructions or procedures covered in this video series, you must satisfy yourself that products, equipment, and your personal safety won’t be compromised or jeopardized. When in doubt, work with an RV service facility. The advice offered by the RV Doctor is solely that of Gary Bunzer and not of RM Acquisition, LLC d/b/a Rand McNally. Likewise, products and manufacturers provided as examples don’t signify endorsement by Rand McNally.
The RV Doctor, Gary Bunzer, has been diagnosing and troubleshooting RV technical problems for more than four decades. Through his articles–including the long-running RV Doctor column, currently featured in Family Motor Coaching magazine–industry manuals and training materials, books, eBooks, DVDs, and Q&A website, he has helped thousands of people cure what ails their RVs. Attendance is high at his informative and entertaining seminars, which are held regularly at RV shows and rallies. In May of 2010, Gary was awarded the 2009 National Education Service Award by the Recreational Vehicle Industry Association (RVIA) for his many contributions to RV technical education.