I don't love thermal fuses. I've had two terrible issues recently.

1) in the bottom of a hot water heater. A momentary burst of heat from the gas company killing the supply while the hwh is running bursts the glass vial and you can't buy the $4 vial. If you are lucky you can find the part for $90 on eBay else you need to replace the HWH!
2) my fridge: something in the circulation system malfunctioned. To disassemble the repair guy used a heat gun: he hit the thermal fuse opening it so it deactivated my defrost cycle so my fridge after repair worked for less than a week!

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)