2015 KEYSTONE LAREDO Unknown Or Other Problems

CARBON MONOXIDE AND FIRE HAZARD. ON DECEMBER 4, 2016 WHILE CAMPING IN MESA, AZ WE ENCOUNTERED A HEAVY RAIN. AFTER TURNING ON THE FURNACE WE SMELLED SOMETHING OUT OF THE ORDINARY AND THE FURNACE WAS HARD TO IGNITE. FURNACE WAS SHUT DOWN AND AFTER EXTENSIVE INVESTIGATION IT WAS DISCOVERED THAT SMELL CAME FROM THE FURNACE COMBUSTION CHAMBER. IT WAS FOUND THAT A METAL VENT COVER THAT COMBINES INTAKE COMBUSTION AIR AND AN EXHAUST OPENING BELOW IT HAD LOUVERED HORIZONTAL OPENINGS POINTED UP, THAT ALLOWED RAINWATER AND OTHER WATER FLOWING DOWN THE SIDE OF THE TRAVEL TRAILER TO ENTER THE ENCLOSED COMBUSTION CHAMBER. INVESTIGATION OF THAT PROBLEM LED TO VARIOUS WEB-SITES WHERE OTHER PEOPLE HAD ENCOUNTERED SIMILAR PROBLEMS. THE WATER INFILTRATION INTO THE COMBUSTION CHAMBER PRESENTS A HAZARD TO THE OCCUPANTS OF THE TRAILER, IN THAT IT CAN SHORT OUT THE ELECTRONIC BOARD THAT RUNS THE FURNACE AND IT CORRODE THE...