Levoit
Levoit Humidifiers & Dehumidifiers Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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CL
Levoit humidifier shows CL on the display and will not change settings.
Child Lock Activated
E1
Levoit humidifier displays E1 and will not run or shuts off immediately after power-on.
Room Temperature Sensor Fault
E2
Levoit humidifier shows E2 and stops producing mist or will not start.
Humidity Sensor Fault
E3
Levoit humidifier displays E3 and mist output stops or never starts.
Water Level Sensor / Float Switch Fault
E4
Levoit humidifier shows E4 and shuts down or will not start misting.
Overheat / Overtemperature Protection Triggered
E5
Levoit humidifier displays E5 and will not produce mist.
Ultrasonic Transducer / Nebulizer Fault
E6
Levoit humidifier shows E6 and shuts down or refuses to start.
Internal Communication / Main PCB Fault
E7
Levoit humidifier displays E7 and stops operating, often related to Wi‑Fi or smart features.
Wi‑Fi / Smart Module Communication Error
E8
Levoit humidifier shows E8 and shuts off, often shortly after starting.
Fan Motor Fault / Airflow Error
E9
Levoit humidifier displays E9 and will not mist, often after a spill or tipping event.
Internal Leak / Water Intrusion Detected
HI
Levoit humidifier displays HI humidity and stops misting even though the room does not feel very humid.
High Humidity Reading / Sensor Saturation
LO
Levoit humidifier displays LO humidity and runs continuously without reaching set humidity.
Low Humidity Reading / Sensor Out of Range
Symptom
Control buttons or touch panel on the humidifier are unresponsive or respond intermittently.
Control Panel / Keypad Failure
Symptom
Dehumidifier (Levoit) runs but does not collect water in the bucket.
No Dehumidification / Refrigeration Failure
Symptom
Dehumidifier coils freeze up with ice during operation.
Evaporator Coil Icing
Symptom
Dehumidifier collects some water but far less than expected.
Reduced Dehumidification Capacity
Symptom
Dehumidifier fan runs but there is a loud rattling or grinding noise.
Dehumidifier Fan / Blower Fault
Symptom
Dehumidifier leaks water onto the floor instead of into the bucket or drain hose.
Internal Drainage / Hose Connection Leak
Symptom
Dehumidifier shows bucket full or tank full indicator even when the bucket is empty and properly installed.
Bucket Full Switch Fault
Symptom
Display is very dim, flickering, or completely blank while the unit still runs.
Display Module / Backlight Failure
Symptom
Humidifier continues running even after the room feels very humid or windows show condensation.
Humidity Control Not Limiting Output
Symptom
Humidifier display and buttons work, but fan does not run and no mist is produced.
Fan Motor Not Starting
Symptom
Humidifier emits a high‑pitched whine or squeal.
Fan Bearing Wear / Ultrasonic Frequency Noise
Symptom
Humidifier emits a strong plastic or burning smell.
Overheating Component / Electrical Fault
Symptom
Humidifier has a musty or moldy smell when operating.
Microbial Growth in Water Path
Symptom
Humidifier makes loud humming or buzzing noise during operation.
Mechanical Vibration / Resonance
Symptom
Humidifier overflows the base or spits water instead of fine mist.
Water Carryover / Mist Path Obstruction
Symptom
Humidifier powers on but produces no mist at all.
Ultrasonic Transducer Not Operating
Symptom
Humidifier produces very weak mist even at maximum setting.
Reduced Ultrasonic Output / Partial Scaling
Symptom
Humidifier runs but there is water leaking from the base onto the table or floor.
External Water Leak
Symptom
Humidifier shuts off before reaching the set humidity level.
Incorrect Humidity Sensing / Short Cycling
Symptom
Humidifier tank shows full, but the unit indicates low water and will not run.
Water Level Detection Error
Symptom
Humidifier turns on but shuts off after a few seconds or minutes without error code.
Intermittent Power / Overcurrent Protection
Symptom
Humidifier vibrates excessively or rattles during operation.
Imbalanced Fan / Loose Housing
Symptom
Humidifier will not power on at all (no lights, no display).
No Power / Dead Unit
Symptom
Smart Levoit humidifier will not connect to Wi‑Fi or frequently disconnects.
Wi‑Fi Connectivity Issue
Symptom
Water accumulates inside the base or electronics compartment without obvious external leak.
Internal Water Leak / Seal Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| CL |
Levoit humidifier shows CL on the display and will not change settings.
|
Child Lock Activated | View Details |
| E1 |
Levoit humidifier displays E1 and will not run or shuts off immediately after power-on.
|
Room Temperature Sensor Fault | View Details |
| E2 |
Levoit humidifier shows E2 and stops producing mist or will not start.
|
Humidity Sensor Fault | View Details |
| E3 |
Levoit humidifier displays E3 and mist output stops or never starts.
|
Water Level Sensor / Float Switch Fault | View Details |
| E4 |
Levoit humidifier shows E4 and shuts down or will not start misting.
|
Overheat / Overtemperature Protection Triggered | View Details |
| E5 |
Levoit humidifier displays E5 and will not produce mist.
|
Ultrasonic Transducer / Nebulizer Fault | View Details |
| E6 |
Levoit humidifier shows E6 and shuts down or refuses to start.
|
Internal Communication / Main PCB Fault | View Details |
| E7 |
Levoit humidifier displays E7 and stops operating, often related to Wi‑Fi or smart features.
|
Wi‑Fi / Smart Module Communication Error | View Details |
| E8 |
Levoit humidifier shows E8 and shuts off, often shortly after starting.
|
Fan Motor Fault / Airflow Error | View Details |
| E9 |
Levoit humidifier displays E9 and will not mist, often after a spill or tipping event.
|
Internal Leak / Water Intrusion Detected | View Details |
| HI |
Levoit humidifier displays HI humidity and stops misting even though the room does not feel very humid.
|
High Humidity Reading / Sensor Saturation | View Details |
| LO |
Levoit humidifier displays LO humidity and runs continuously without reaching set humidity.
|
Low Humidity Reading / Sensor Out of Range | View Details |
| – |
Control buttons or touch panel on the humidifier are unresponsive or respond intermittently.
|
Control Panel / Keypad Failure | View Details |
| – |
Dehumidifier (Levoit) runs but does not collect water in the bucket.
|
No Dehumidification / Refrigeration Failure | View Details |
| – |
Dehumidifier coils freeze up with ice during operation.
|
Evaporator Coil Icing | View Details |
| – |
Dehumidifier collects some water but far less than expected.
|
Reduced Dehumidification Capacity | View Details |
| – |
Dehumidifier fan runs but there is a loud rattling or grinding noise.
|
Dehumidifier Fan / Blower Fault | View Details |
| – |
Dehumidifier leaks water onto the floor instead of into the bucket or drain hose.
|
Internal Drainage / Hose Connection Leak | View Details |
| – |
Dehumidifier shows bucket full or tank full indicator even when the bucket is empty and properly installed.
|
Bucket Full Switch Fault | View Details |
| – |
Display is very dim, flickering, or completely blank while the unit still runs.
|
Display Module / Backlight Failure | View Details |
| – |
Humidifier continues running even after the room feels very humid or windows show condensation.
|
Humidity Control Not Limiting Output | View Details |
| – |
Humidifier display and buttons work, but fan does not run and no mist is produced.
|
Fan Motor Not Starting | View Details |
| – |
Humidifier emits a high‑pitched whine or squeal.
|
Fan Bearing Wear / Ultrasonic Frequency Noise | View Details |
| – |
Humidifier emits a strong plastic or burning smell.
|
Overheating Component / Electrical Fault | View Details |
| – |
Humidifier has a musty or moldy smell when operating.
|
Microbial Growth in Water Path | View Details |
| – |
Humidifier makes loud humming or buzzing noise during operation.
|
Mechanical Vibration / Resonance | View Details |
| – |
Humidifier overflows the base or spits water instead of fine mist.
|
Water Carryover / Mist Path Obstruction | View Details |
| – |
Humidifier powers on but produces no mist at all.
|
Ultrasonic Transducer Not Operating | View Details |
| – |
Humidifier produces very weak mist even at maximum setting.
|
Reduced Ultrasonic Output / Partial Scaling | View Details |
| – |
Humidifier runs but there is water leaking from the base onto the table or floor.
|
External Water Leak | View Details |
| – |
Humidifier shuts off before reaching the set humidity level.
|
Incorrect Humidity Sensing / Short Cycling | View Details |
| – |
Humidifier tank shows full, but the unit indicates low water and will not run.
|
Water Level Detection Error | View Details |
| – |
Humidifier turns on but shuts off after a few seconds or minutes without error code.
|
Intermittent Power / Overcurrent Protection | View Details |
| – |
Humidifier vibrates excessively or rattles during operation.
|
Imbalanced Fan / Loose Housing | View Details |
| – |
Humidifier will not power on at all (no lights, no display).
|
No Power / Dead Unit | View Details |
| – |
Smart Levoit humidifier will not connect to Wi‑Fi or frequently disconnects.
|
Wi‑Fi Connectivity Issue | View Details |
| – |
Water accumulates inside the base or electronics compartment without obvious external leak.
|
Internal Water Leak / Seal Failure | View Details |
No matching codes found
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