fuse was blown for heater no fan, found heater motor to be frozen and it had to be replaced. I installed a new 10amp fuse in the fuse block and everything worked as it should on all speeds low, med and high. Today I used the truck and it was colder so I placed the control on high after about 10 minutes the blower quit working on high but continued to work on low or med. A few short minutes after that it quit working all together. Found new fuse was blown. I installed new fuse and the motor worked again on all 3 speeds. Can someone tell me why this blew a fuse? I don't know much about the deluxe heaters but they look fairly simple what am I missing here. Thanks Chris
