How to protect your RV’s electrical system

By Chris Dougherty Certified RV technician A reader wrote in recently who had heard about RVs getting fried by bad wiring in campgrounds, and asked if I would recommend purchasing a surge protector for an RV to help prevent this. I highly recommend surge protectors. I have worked on numerous RVs over the years that suffered electrical problems caused by... Read More

Electrical gremlins? Multimeters to the rescue

By Chris Dougherty Certified RV Technician There are many brands and kinds of multimeters, from inexpensive dollar store specials to Flukes and Extechs. While I’ll refrain from recommending any particular brand or mode, I will make a few recommendations for features. AC/DC Amp Clamp: Power is measured by volts (pressure) and amps (flow). Since more than half of the electrical... Read More

Tools for RVers: Battery-powered screw gun

By Chris Dougherty Certified RV technician One of the most useful tools you can carry in an RV is a good battery-powered screw gun. As a professional technician, I use a DeWalt 12-volt screw gun every day. I’m never without it. What’s nice about this tool is it’s lightweight, compact, pretty powerful, has a huge array of bits available and... Read More

Tools for RVers: Two handy screwdrivers

Spotlight on Tools Here’s a useful tool you might want to carry with you in your RV. By Chris Dougherty Certified RV technician A standard throughout the RV industry, Robertson or square head screws hold almost everything in an RV together, from cabinetry to outside trim. Robertson screws are used because the screws hold exceptionally well to the screwdriver or... Read More

How to fix a sticky black tank valve

By Chris Dougherty Editor’s note: Chris Dougherty is a certified RV technician in western Massachusetts. Here is a letter he received from a reader while he was serving as’s technical editor. Dear Chris, Pulling the black water handle on my 2012 Entegra is getting more difficult compared to the gray water side. Is there any way to ease this... Read More