De'Longhi
De'Longhi 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
De'Longhi dehumidifier shows CF on the display; unit may still operate but indicates a service reminder.
Filter / Coil Cleaning Reminder
E1
De'Longhi dehumidifier displays E1 and will not start dehumidifying.
Room Temperature Sensor Error (NTC Open/Short)
E2
De'Longhi dehumidifier shows E2 and stops cooling; fan may still operate.
Evaporator Coil Temperature Sensor Error
E3
De'Longhi dehumidifier displays E3 and shuts down compressor operation.
Humidity Sensor / Humidistat Error
E4
De'Longhi dehumidifier shows E4 and will not run the compressor.
Defrost Sensor or Defrost Circuit Error
E5
De'Longhi dehumidifier displays E5 and stops operation shortly after startup.
Compressor Overload / Current Protection Error
E6
De'Longhi dehumidifier shows E6 and will not start the fan or compressor.
Internal Communication Error (Display Board to Main PCB)
E7
De'Longhi dehumidifier displays E7 and stops dehumidifying; fan may still run intermittently.
Fan Motor Feedback / Fan Speed Error
E8
De'Longhi dehumidifier shows E8 and shuts down; may be accompanied by unusual noises from the compressor area.
High-Pressure Protection / Refrigerant Overpressure
E9
De'Longhi dehumidifier displays E9 and will not start the compressor.
Low-Pressure / Refrigerant Loss Protection
EC
De'Longhi dehumidifier shows EC on the display and stops dehumidifying; fan may still run.
Refrigerant System / Cooling Circuit Error
F0
De'Longhi dehumidifier shows F0 and will not start normal operation.
General Sensor Fault / EEPROM Error (Model-Dependent)
F1
De'Longhi dehumidifier displays F1 and stops; may be accompanied by beeping.
Water Level Sensor / Float Error
F2
De'Longhi dehumidifier shows F2 and does not respond to humidity setpoint changes.
Keypad / Control Panel Error
F3
De'Longhi dehumidifier displays F3 and cycles off prematurely.
Humidity Calibration / Sensor Range Error
HI
De'Longhi dehumidifier displays HI for humidity and does not seem to reduce moisture effectively.
High Humidity Indication / Sensor at Upper Limit
HL
De'Longhi dehumidifier stops and displays HL on the control panel; unit will not restart until unplugged and cooled.
High Temperature Safety Lockout
LO
De'Longhi dehumidifier displays LO and does not start dehumidifying; fan may run briefly.
Low Ambient Temperature Lockout
P1
De'Longhi dehumidifier shows P1 and stops; water tank may be empty or partially full.
Internal Tank Full / Pump Reservoir Full (Pump Models)
P2
De'Longhi dehumidifier displays P2 and stops; main water tank is full.
Water Tank Full Protection
Symptom
De'Longhi dehumidifier causes the household circuit breaker or RCD to trip when it starts.
Electrical Short / Ground Fault
Symptom
De'Longhi dehumidifier control panel lights flicker or the display is dim and unstable.
Unstable Power to Control Panel
Symptom
De'Longhi dehumidifier display and buttons work, but the unit shuts off as soon as the water tank is inserted.
Water Tank Detection Fault
Symptom
De'Longhi dehumidifier does not power on at all; no lights or display.
No Power / Dead Unit
Symptom
De'Longhi dehumidifier emits a musty or moldy odor during operation.
Odor / Microbial Growth in Water System
Symptom
De'Longhi dehumidifier fan does not run, but the compressor appears to start (unit gets warm and may ice up quickly).
Fan Not Running
Symptom
De'Longhi dehumidifier ices up; evaporator coil becomes a solid block of ice and airflow is reduced.
Evaporator Coil Icing / Frost Buildup
Symptom
De'Longhi dehumidifier is very noisy during operation; rattling, buzzing, or grinding sounds are heard.
Excessive Noise / Vibration
Symptom
De'Longhi dehumidifier leaks water onto the floor instead of into the tank or drain hose.
Water Leakage / Drainage Fault
Symptom
De'Longhi dehumidifier powers on but the compressor never starts; only the fan runs continuously.
Compressor Not Starting
Symptom
De'Longhi dehumidifier runs but does not collect water; humidity in the room remains high.
No Dehumidification / Poor Moisture Removal
Symptom
De'Longhi dehumidifier runs continuously and never reaches the set humidity; room feels overly dry or unit never cycles off.
Humidistat Not Cycling / Over-Dehumidifying
Symptom
De'Longhi dehumidifier runs for a few minutes then shuts off; tank is not full and no error code is shown.
Short Cycling / Overheating Shutdown
Symptom
De'Longhi dehumidifier's continuous drain function does not work; water still fills the tank instead of draining through the hose.
Continuous Drain Failure
Symptom
De'Longhi dehumidifier's humidifier function (on combo humidifier/dehumidifier models) does not produce visible mist or raise humidity.
No Humidification Output (Combo Unit)
Symptom
De'Longhi humidifier (standalone) does not turn on or respond to controls.
Humidifier No Power
Symptom
De'Longhi humidifier emits a white dust on nearby surfaces.
Mineral Dust Emission (Ultrasonic Models)
Symptom
De'Longhi humidifier has a strong plastic or chemical smell when new or after storage.
Initial Odor / Off-Gassing
Symptom
De'Longhi humidifier leaks water from the base or around the tank.
Humidifier Water Leakage
Symptom
De'Longhi humidifier produces very little mist even at maximum setting.
Reduced Humidification Output
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| CF |
De'Longhi dehumidifier shows CF on the display; unit may still operate but indicates a service reminder.
|
Filter / Coil Cleaning Reminder | View Details |
| E1 |
De'Longhi dehumidifier displays E1 and will not start dehumidifying.
|
Room Temperature Sensor Error (NTC Open/Short) | View Details |
| E2 |
De'Longhi dehumidifier shows E2 and stops cooling; fan may still operate.
|
Evaporator Coil Temperature Sensor Error | View Details |
| E3 |
De'Longhi dehumidifier displays E3 and shuts down compressor operation.
|
Humidity Sensor / Humidistat Error | View Details |
| E4 |
De'Longhi dehumidifier shows E4 and will not run the compressor.
|
Defrost Sensor or Defrost Circuit Error | View Details |
| E5 |
De'Longhi dehumidifier displays E5 and stops operation shortly after startup.
|
Compressor Overload / Current Protection Error | View Details |
| E6 |
De'Longhi dehumidifier shows E6 and will not start the fan or compressor.
|
Internal Communication Error (Display Board to Main PCB) | View Details |
| E7 |
De'Longhi dehumidifier displays E7 and stops dehumidifying; fan may still run intermittently.
|
Fan Motor Feedback / Fan Speed Error | View Details |
| E8 |
De'Longhi dehumidifier shows E8 and shuts down; may be accompanied by unusual noises from the compressor area.
|
High-Pressure Protection / Refrigerant Overpressure | View Details |
| E9 |
De'Longhi dehumidifier displays E9 and will not start the compressor.
|
Low-Pressure / Refrigerant Loss Protection | View Details |
| EC |
De'Longhi dehumidifier shows EC on the display and stops dehumidifying; fan may still run.
|
Refrigerant System / Cooling Circuit Error | View Details |
| F0 |
De'Longhi dehumidifier shows F0 and will not start normal operation.
|
General Sensor Fault / EEPROM Error (Model-Dependent) | View Details |
| F1 |
De'Longhi dehumidifier displays F1 and stops; may be accompanied by beeping.
|
Water Level Sensor / Float Error | View Details |
| F2 |
De'Longhi dehumidifier shows F2 and does not respond to humidity setpoint changes.
|
Keypad / Control Panel Error | View Details |
| F3 |
De'Longhi dehumidifier displays F3 and cycles off prematurely.
|
Humidity Calibration / Sensor Range Error | View Details |
| HI |
De'Longhi dehumidifier displays HI for humidity and does not seem to reduce moisture effectively.
|
High Humidity Indication / Sensor at Upper Limit | View Details |
| HL |
De'Longhi dehumidifier stops and displays HL on the control panel; unit will not restart until unplugged and cooled.
|
High Temperature Safety Lockout | View Details |
| LO |
De'Longhi dehumidifier displays LO and does not start dehumidifying; fan may run briefly.
|
Low Ambient Temperature Lockout | View Details |
| P1 |
De'Longhi dehumidifier shows P1 and stops; water tank may be empty or partially full.
|
Internal Tank Full / Pump Reservoir Full (Pump Models) | View Details |
| P2 |
De'Longhi dehumidifier displays P2 and stops; main water tank is full.
|
Water Tank Full Protection | View Details |
| – |
De'Longhi dehumidifier causes the household circuit breaker or RCD to trip when it starts.
|
Electrical Short / Ground Fault | View Details |
| – |
De'Longhi dehumidifier control panel lights flicker or the display is dim and unstable.
|
Unstable Power to Control Panel | View Details |
| – |
De'Longhi dehumidifier display and buttons work, but the unit shuts off as soon as the water tank is inserted.
|
Water Tank Detection Fault | View Details |
| – |
De'Longhi dehumidifier does not power on at all; no lights or display.
|
No Power / Dead Unit | View Details |
| – |
De'Longhi dehumidifier emits a musty or moldy odor during operation.
|
Odor / Microbial Growth in Water System | View Details |
| – |
De'Longhi dehumidifier fan does not run, but the compressor appears to start (unit gets warm and may ice up quickly).
|
Fan Not Running | View Details |
| – |
De'Longhi dehumidifier ices up; evaporator coil becomes a solid block of ice and airflow is reduced.
|
Evaporator Coil Icing / Frost Buildup | View Details |
| – |
De'Longhi dehumidifier is very noisy during operation; rattling, buzzing, or grinding sounds are heard.
|
Excessive Noise / Vibration | View Details |
| – |
De'Longhi dehumidifier leaks water onto the floor instead of into the tank or drain hose.
|
Water Leakage / Drainage Fault | View Details |
| – |
De'Longhi dehumidifier powers on but the compressor never starts; only the fan runs continuously.
|
Compressor Not Starting | View Details |
| – |
De'Longhi dehumidifier runs but does not collect water; humidity in the room remains high.
|
No Dehumidification / Poor Moisture Removal | View Details |
| – |
De'Longhi dehumidifier runs continuously and never reaches the set humidity; room feels overly dry or unit never cycles off.
|
Humidistat Not Cycling / Over-Dehumidifying | View Details |
| – |
De'Longhi dehumidifier runs for a few minutes then shuts off; tank is not full and no error code is shown.
|
Short Cycling / Overheating Shutdown | View Details |
| – |
De'Longhi dehumidifier's continuous drain function does not work; water still fills the tank instead of draining through the hose.
|
Continuous Drain Failure | View Details |
| – |
De'Longhi dehumidifier's humidifier function (on combo humidifier/dehumidifier models) does not produce visible mist or raise humidity.
|
No Humidification Output (Combo Unit) | View Details |
| – |
De'Longhi humidifier (standalone) does not turn on or respond to controls.
|
Humidifier No Power | View Details |
| – |
De'Longhi humidifier emits a white dust on nearby surfaces.
|
Mineral Dust Emission (Ultrasonic Models) | View Details |
| – |
De'Longhi humidifier has a strong plastic or chemical smell when new or after storage.
|
Initial Odor / Off-Gassing | View Details |
| – |
De'Longhi humidifier leaks water from the base or around the tank.
|
Humidifier Water Leakage | View Details |
| – |
De'Longhi humidifier produces very little mist even at maximum setting.
|
Reduced Humidification Output | View Details |
No matching codes found
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