DescriptionThis video provides step-by-step instructions for replacing the display board multi-harness on an LG Air Conditioner. The most common reason for replacing this part is if the display is not working properly.
All of the information in this video is applicable to the following brands: LG
Step-By-Step Instructions1
To replace the display board multi-harness in this lg built-in air conditioner…
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… you will need a phillips-head screwdriver.
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Before you begin the procedure, unplug the unit’s power cord.
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Remove the inlet cover by detaching it from the top first.
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Pull the air filter up and out.
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Use the phillips-head screwdriver to unthread the two mounting screws securing the front grille assembly.
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Pull the assembly out from the bottom then lift up to detach.
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Disconnect the wire connecter to fully remove the assembly.
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Using the phillips-head screwdriver, unthread the two screws securing the display board cover.
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Detach the wires from the retaining clip to remove the cover.
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Next, unthread the two mounting screws securing the display board itself.
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Now disconnect the wire connecter from the wi-fi board to fully release the display board assembly.
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With the board released, you can depress the tabs to disconnect the old multi-harness.
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To install the new display board multi-harness …
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… connect the wire connecters to the display board.
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Realign the board in the frame and thread the upper left and lower right mounting screws to secure.
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… and thread the two remaining screws.
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Secure the wires under the retaining clip.
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Connect the wire connecter to the wi-fi board.
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Reinstall the front grille assembly by first connecting the wire connecter.
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Make sure the vent lever is accessible just below the horizontal louver as you insert the upper tabs into the slots in the frame, then position and snap the sides of the grille into place.
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Rethread the two mounting screws to secure.
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Realign the air filter by positioning the bottom edge first then snap the top of the filter into place.
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Align the inlet cover hinge tabs with the slots in the grille assembly then snap the top portion of the cover into position.
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Plug the power cord back in…
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… and the air conditioner should be ready for use.