“what is the blue button for next to the tray for detergent”

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• Its not a button, it is the water fill valve, it sprays out from under the blue top.

  Answered by Anonymous 4 years ago

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• I am not sure about that, no guidance is offered in the manual for that. Please seek help on the LG Community Forum at https://lgcommunity.us.com. The LG Community Forum is a great resource for getting help from other LG customers. ^Daphane

  Answered by LG Digital Customer Care 4 years ago

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• At some point in the cycle, water is added from that particular spot.

  Answered by Smitdawg 4 years ago

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