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LG LAN121HNM Fuse
In a wall unit, the fuse operates as a type of electricity protector in case of a sudden short or possible overloading of the current. Be smart and try to find the cause when a fuse blew so you can see of there is a bigger problem.
Warnings the main fuse will need to be replaced
- The fused relay appears blackened and in rough shape at first glance
- It cannot power on even though 120V is delivered to the system
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