Dana A Cincinnati , OH September 26, 2016 Appliance: Whirlpool Dryer LG5771XWW0 Whirlpool Dryer Lg5771xww0: Thermal fuse was blown causing no ignition and heat in the gas burner i also found the burner tube was rotting away. How to replace Dryer Thermal Fuse. I replaced the burner tube and the thermal fuse. The burner tube mounting holes did not match up. I had to do a little work to make it fit. But it worked out in the end> Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours