Important possible Thor recall!
NHTSA is looking into problems with windshield wipers and contacted a member on another forum.
Since I had the same problem I did a forum search on two other RV forums and found over 24 reports with identical problem description - passenger side wiper arm rotating to far and in the worst case wedging under drivers side freezing it. End result - both wipers out of commission resulting in a dangerous life safety situation. Several owners reported same failure on replacement wiper assembly and I found one owner reporting failure of original and two replacements. So it looks like Thor is continuing to use bad stock and not really fixing the problem.
So far there are several Thor products with the same problem: Challenger, Outlaw, Hurricane, Windsport and Miramar spanning product years 2013 to 2016.
If you had the problem described above or any other serious windshield wiper problem - please call or write Larry Long - your life may depend on it.
Larry Long
Safety Defects Investigator
Medium and Heavy Duty Vehicles Division
Office of Defects Investigation
National Highway Traffic Safety Administration NEF-140, Rm W48-214
1200 New Jersey Ave. SE.
Washington DC 20590
202-366-6281
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A "Retired" Mind is a Terrible Thing to Waste
Chuck USNR, USAF & USCGA and Suzie
Challenger Owners Club
2015 Thor Challenger 37KT
2014 Ford Fiesta
2011 Sea Eagle 385 FT kayak
2009 Polaris RZR
2014 Zenetto Stealth road bike