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LG LAU121HNM Fuse
In a wall unit, the fuse functions as a type of electrical defense just in case of a short circuit or possible overloading of the electrical current. Smart people try to figure out the main reason the main fuse has blown to check if you missed anything that may be causing it.
Major signs the interior fuse needs replacing ASAP
- The fuse itself appears charred and burnt at first
- It will not power up even though enough power is arriving to the unit
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