Yup the best lock lube you can get. Probably best to get it from the local lock smith's shop. And then repeated applications and gently inserting the key and gently turning it. For days if necessary. Better than breaking the key in the lock and then paying BIG bucks for the same locksmith to come and fix you up
2004 Itasca Sunrise W22 chassis GM 8.1 Allison 1000 Towing a 2007 Chevy Cobalt four wheels down.
One of the locks on my Minnie Winne was installed wrong and had to be turned in the opposite direction to unlock it. If that seems to be your case, remove the lock from the door, loosen the nut on the backside and turn the locking bar 180 degrees, and retighten the nut, then re-install the lock in the door.
2016 Minnie Winnie 27Q on a 2015 Ford E450 chassis. Retired U.S. Air Force. Living in Anchorage, Alaska
Please post more information about what you have. Winnebago makes many different models in that year, in all years. We need specifics in order to give you the best possible help.
Rick & Melissa Young & Dawson (RIP), 2011 Meridian 40U, FL XCL, ISL 380HP/DEF, Al 3000 MH, 2014 Honda CR-V, SMI AF1, Blue Ox TruCenter & tow equip.,EEZTire TPMS. Servants On Wheels Ever Ready. Best job we ever paid to do . (full time volunteers)