Coleman 10' X 10' Sundome Tent 9160K101 "fuse 1 250v" Questions

...bulb on one end of the elements that is open and not allowing power through. Is there a schematic available for this model and what is this bulb that looks like a fuse or something 1" long 1/4 ...

fuse now (10amp jet 250v #00575) If you find it please send info to [email protected]. I hope we all get our heaters working, for $250 + dollars you'd expect it to last longer than 1 month. I have