Homedics
Homedics 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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CF
Homedics dehumidifier displays CF or filter icon and may beep; unit still runs but requests maintenance.
Filter Cleaning Reminder
E1
Homedics digital humidifier beeps and shows E1 on the display; unit will not run or shuts off immediately.
Room Temperature Sensor Fault
E2
Homedics humidifier displays E2 and will not maintain humidity setpoint; fan may still run.
Humidity Sensor / RH Probe Fault
E3
Homedics ultrasonic humidifier shows E3 and stops producing mist; fan may still run.
Water Level Sensor / Float Switch Fault
E4
Homedics ultrasonic humidifier displays E4 and shuts down mist output shortly after starting.
Ultrasonic Transducer Overheat / Overcurrent Fault
E5
Homedics dehumidifier shows E5 on the display and stops dehumidifying.
Humidity Sensor Fault (Dehumidifier)
E6
Homedics dehumidifier displays E6 and will not run the compressor.
Temperature Sensor / Coil Sensor Fault
E7
Homedics dehumidifier shows E7 and shuts down or will not start.
Ambient Temperature Sensor Fault
E8
Homedics dehumidifier displays E8 and the compressor does not run; fan may still operate.
Refrigeration System / High Temperature Protection Fault
E9
Homedics dehumidifier shows E9 and stops operating; bucket may be empty or correctly installed.
Bucket Full Switch / Float Sensor Fault
F0
Homedics dehumidifier shows F0 and stops dehumidifying.
Refrigerant System / Low Temperature Protection Fault
F1
Homedics dehumidifier displays F1 and will not start normal operation.
Internal Control Board Fault
F2
Homedics dehumidifier shows F2 and stops; fan may or may not run.
Defrost Sensor / Coil Sensor Error
F3
Homedics dehumidifier displays F3 and will not run the compressor.
Compressor Overload / Current Protection Fault
F4
Homedics dehumidifier shows F4 and stops dehumidifying.
Fan Motor Fault
F5
Homedics dehumidifier displays F5 and may shut down unexpectedly.
Internal Communication / EEPROM Error
HI
Homedics humidifier display shows HI and the unit may not run or cycles off quickly.
High Room Humidity or Sensor Out of Range
LO
Homedics humidifier display shows LO and the unit will not run or mist output stops.
Low Water Level Detected
Symptom
Homedics dehumidifier bucket fills too quickly or overflows even with hose attached.
Drainage System Blockage or Misrouting
Symptom
Homedics dehumidifier emits a strong plastic or burning smell when running.
Overheating Electrical Components
Symptom
Homedics dehumidifier fan runs but compressor cycles on and off rapidly.
Short Cycling Compressor
Symptom
Homedics dehumidifier runs but does not collect water; humidity in room remains high.
No Dehumidification / Refrigeration Failure
Symptom
Homedics dehumidifier shuts off and will not restart until bucket is removed and reinserted, even when not full.
Intermittent Bucket Switch Operation
Symptom
Homedics humidifier control buttons are unresponsive or respond intermittently.
Keypad / Touch Control Failure
Symptom
Homedics humidifier display and buttons work but no mist is produced and a faint electrical smell is present.
Transducer Driver Circuit Failure
Symptom
Homedics humidifier display is very dim or completely blank, but the unit still runs.
Display Backlight or LCD Failure
Symptom
Homedics humidifier emits a musty or moldy odor during operation.
Microbial Growth in Tank and Base
Symptom
Homedics humidifier leaks water from the base onto the table or floor.
Water Tank or Seal Leakage
Symptom
Homedics humidifier leaves white dust on nearby furniture.
Mineral Dust Emission
Symptom
Homedics humidifier makes loud buzzing or rattling noises during operation.
Mechanical Vibration / Fan or Transducer Noise
Symptom
Homedics humidifier powers on but fan does not run; no airflow from outlet.
Fan Motor Failure (Humidifier)
Symptom
Homedics humidifier runs but shuts off after a few minutes even with plenty of water.
Overheat Protection Trip
Symptom
Homedics humidifier runs continuously and will not shut off even when the set humidity is reached.
Humidity Control / Sensor Drift
Symptom
Homedics humidifier shuts off immediately when the tank is installed, even when empty.
Tank Presence / Tip-Over Switch Fault
Symptom
Homedics humidifier water tank develops cracks or cloudiness over time.
Tank Material Degradation
Symptom
Homedics humidifier will not power on at all; no lights or display.
No Power / Power Supply Failure
Symptom
Homedics ultrasonic humidifier produces very weak mist output even on high setting.
Restricted Mist Output / Partial Transducer Scaling
Symptom
Homedics ultrasonic humidifier runs but produces no mist at all.
Ultrasonic Transducer Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| CF |
Homedics dehumidifier displays CF or filter icon and may beep; unit still runs but requests maintenance.
|
Filter Cleaning Reminder | View Details |
| E1 |
Homedics digital humidifier beeps and shows E1 on the display; unit will not run or shuts off immediately.
|
Room Temperature Sensor Fault | View Details |
| E2 |
Homedics humidifier displays E2 and will not maintain humidity setpoint; fan may still run.
|
Humidity Sensor / RH Probe Fault | View Details |
| E3 |
Homedics ultrasonic humidifier shows E3 and stops producing mist; fan may still run.
|
Water Level Sensor / Float Switch Fault | View Details |
| E4 |
Homedics ultrasonic humidifier displays E4 and shuts down mist output shortly after starting.
|
Ultrasonic Transducer Overheat / Overcurrent Fault | View Details |
| E5 |
Homedics dehumidifier shows E5 on the display and stops dehumidifying.
|
Humidity Sensor Fault (Dehumidifier) | View Details |
| E6 |
Homedics dehumidifier displays E6 and will not run the compressor.
|
Temperature Sensor / Coil Sensor Fault | View Details |
| E7 |
Homedics dehumidifier shows E7 and shuts down or will not start.
|
Ambient Temperature Sensor Fault | View Details |
| E8 |
Homedics dehumidifier displays E8 and the compressor does not run; fan may still operate.
|
Refrigeration System / High Temperature Protection Fault | View Details |
| E9 |
Homedics dehumidifier shows E9 and stops operating; bucket may be empty or correctly installed.
|
Bucket Full Switch / Float Sensor Fault | View Details |
| F0 |
Homedics dehumidifier shows F0 and stops dehumidifying.
|
Refrigerant System / Low Temperature Protection Fault | View Details |
| F1 |
Homedics dehumidifier displays F1 and will not start normal operation.
|
Internal Control Board Fault | View Details |
| F2 |
Homedics dehumidifier shows F2 and stops; fan may or may not run.
|
Defrost Sensor / Coil Sensor Error | View Details |
| F3 |
Homedics dehumidifier displays F3 and will not run the compressor.
|
Compressor Overload / Current Protection Fault | View Details |
| F4 |
Homedics dehumidifier shows F4 and stops dehumidifying.
|
Fan Motor Fault | View Details |
| F5 |
Homedics dehumidifier displays F5 and may shut down unexpectedly.
|
Internal Communication / EEPROM Error | View Details |
| HI |
Homedics humidifier display shows HI and the unit may not run or cycles off quickly.
|
High Room Humidity or Sensor Out of Range | View Details |
| LO |
Homedics humidifier display shows LO and the unit will not run or mist output stops.
|
Low Water Level Detected | View Details |
| – |
Homedics dehumidifier bucket fills too quickly or overflows even with hose attached.
|
Drainage System Blockage or Misrouting | View Details |
| – |
Homedics dehumidifier emits a strong plastic or burning smell when running.
|
Overheating Electrical Components | View Details |
| – |
Homedics dehumidifier fan runs but compressor cycles on and off rapidly.
|
Short Cycling Compressor | View Details |
| – |
Homedics dehumidifier runs but does not collect water; humidity in room remains high.
|
No Dehumidification / Refrigeration Failure | View Details |
| – |
Homedics dehumidifier shuts off and will not restart until bucket is removed and reinserted, even when not full.
|
Intermittent Bucket Switch Operation | View Details |
| – |
Homedics humidifier control buttons are unresponsive or respond intermittently.
|
Keypad / Touch Control Failure | View Details |
| – |
Homedics humidifier display and buttons work but no mist is produced and a faint electrical smell is present.
|
Transducer Driver Circuit Failure | View Details |
| – |
Homedics humidifier display is very dim or completely blank, but the unit still runs.
|
Display Backlight or LCD Failure | View Details |
| – |
Homedics humidifier emits a musty or moldy odor during operation.
|
Microbial Growth in Tank and Base | View Details |
| – |
Homedics humidifier leaks water from the base onto the table or floor.
|
Water Tank or Seal Leakage | View Details |
| – |
Homedics humidifier leaves white dust on nearby furniture.
|
Mineral Dust Emission | View Details |
| – |
Homedics humidifier makes loud buzzing or rattling noises during operation.
|
Mechanical Vibration / Fan or Transducer Noise | View Details |
| – |
Homedics humidifier powers on but fan does not run; no airflow from outlet.
|
Fan Motor Failure (Humidifier) | View Details |
| – |
Homedics humidifier runs but shuts off after a few minutes even with plenty of water.
|
Overheat Protection Trip | View Details |
| – |
Homedics humidifier runs continuously and will not shut off even when the set humidity is reached.
|
Humidity Control / Sensor Drift | View Details |
| – |
Homedics humidifier shuts off immediately when the tank is installed, even when empty.
|
Tank Presence / Tip-Over Switch Fault | View Details |
| – |
Homedics humidifier water tank develops cracks or cloudiness over time.
|
Tank Material Degradation | View Details |
| – |
Homedics humidifier will not power on at all; no lights or display.
|
No Power / Power Supply Failure | View Details |
| – |
Homedics ultrasonic humidifier produces very weak mist output even on high setting.
|
Restricted Mist Output / Partial Transducer Scaling | View Details |
| – |
Homedics ultrasonic humidifier runs but produces no mist at all.
|
Ultrasonic Transducer Failure | View Details |
No matching codes found
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