OUR CAB AREA THE DOGHOUSE AND THE FLOOR BETWEEN THE PASSENGER AND DRIVER IS REACHING 130 TO 140 DEGREES IN TEMPERATURE. I BURNED MY CALF ON LEFT LEG DUE TO EXTREME HEAT. THE LONGER WE DRIVE THE HOTTER THE CAB BECOMES. I HAVE MULTIPLE SCLEROSIS AND MY LEG AND ARMS ARE NUMB. I PURCHASED MOTOR HOME TO TRAVEL TO MAYO CLINIC. PLEASE HELP. THIS IS A SAFETY AND HEALTH ISSUE. I BECOME LETHARGIC IN HEAT.