infinte switch without fuse

[Tary]

I replaced the infinte switch on the left rear burner. the old switch had a fuse that burn out. the replacement switch that I was sent dose not have a fuse. I was told they dont make that kind anymore…the wires were not the same colors as the instuctions had but I was able to hook it up and it works, but now my front burner fried out , could it be hooked up wrong , are there other instuctions , how can I test it… what could be my week link…what happens if I replace all the switches .what shorts out then…Hope you can help …Thanks