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Haier ESA3189 Fuse
In a wall unit, the fuse provides electrical defense in the case of a short circuit or overload of the electrical current. Always play it safe and attempt to find out why a fuse blew so you do not have to keep wasting fuses that continue to blow.
Main clues your fuse will need to be replaced
- The fuse itself looks blackened and in rough shape when initially seen
- It refuses to activate even when electricity is being delivered to the unit
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