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Williams 7691 Fuse
In a wall unit, the fuse functions as a type of electrical shield in the rare circumstances of an electrical short or possible overloading of the electrical current. Be smart and try to seek out the reason a fuse goes out to check if you missed anything that may be causing it.
Major symptoms your Williams fuse needs replacing ASAP
- The fuse looks smoky and in rough shape at first glance
- It cannot activate even when electricity is being delivered to the unit
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