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Not that I can see. It says however that if the unit is venting inside the charcoal filter needs to be changed every 6 - 12 month or more often depending on how much the vent is being used.
Sorry, there was a problem. Please try again later.No, there is not an indicator light. If your oven is vented inside, the charcoal filter should be replaced every 6 to 12 months, and more often if necessary. The charcoal filter cannot be cleaned. LG Microwave Filter 5230W1A003A, https://www.lg.com/us/kitchen-accessories/lg-5230w1a003a. ^Daphane
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