Levoit error codes and indicator lights
Each table applies only to the model named above it.
| Indicator | Meaning on Core 300 |
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| Check Filter Indicator | A reminder to check the filter. It lights within 6 to 8 months of use, sooner with heavy use and later with light use. |
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| Code | Meaning on Core 300S |
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| E1 | The motor has malfunctioned. |
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| Check Filter Indicator | A reminder to check the filter. It lights within 6 to 8 months of use, sooner with frequent use and later with light use. |
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| Code | Meaning on Core 400S |
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| E1 | The motor has malfunctioned. |
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| Check Filter Indicator | A reminder to check the filter. It should turn on at about 12 months, sooner if you run the purifier frequently and later if you do not use it often. |
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| Code | Meaning on Core 600S |
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| E1 | The motor has malfunctioned. |
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| Check Filter Indicator | A reminder to check the filter. It lights after about 6 to 12 months at 24 hours of daily use; with less use it takes longer. |
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