Philips
Philips 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
Philips humidifier displays CF or a filter icon and may beep; unit still runs but requests maintenance.
Filter Replacement / Cleaning Reminder
E1
Philips dehumidifier stops and displays E1 on the control panel; unit may beep and refuse to start dehumidifying.
Room Temperature Sensor Fault
E2
Philips dehumidifier shows E2 and stops; fan may still run but compressor does not start.
Evaporator Coil Temperature Sensor Fault
E3
Philips dehumidifier displays E3 and will not start dehumidifying; sometimes occurs after long operation.
Humidity Sensor Fault
E4
Philips dehumidifier shows E4 and shuts down; may be accompanied by compressor not starting or stopping quickly.
Refrigerant System Protection / High or Low Temperature Fault
E5
Philips dehumidifier displays E5 and stops; fan may run briefly then shut off.
Water Level Sensor / Float Switch Fault
E6
Philips dehumidifier shows E6; unit may not respond to control inputs or may shut down unexpectedly.
Communication Error Between Display PCB and Main PCB
E7
Philips dehumidifier displays E7 and will not start; sometimes occurs after a power surge.
EEPROM / Memory Error
E8
Philips dehumidifier shows E8; compressor does not start and unit may beep repeatedly.
Compressor Overload / Current Protection Fault
E9
Philips dehumidifier displays E9 and stops; may be associated with abnormal fan behavior.
Fan Motor Feedback / Tachometer Error
F0
Philips humidifier displays F0 and stops producing mist; water tank may be full and correctly seated.
Water Level Detection Error (Humidifier)
F1
Philips humidifier shows F1 and does not generate mist; fan may still run.
Humidity Sensor Fault (Humidifier)
F2
Philips ultrasonic humidifier displays F2 and stops misting; water is present in the tank.
Ultrasonic Transducer / Nebulizer Fault
F3
Philips warm-mist humidifier shows F3 and shuts off; no steam is produced.
Overheat / Boiling Chamber Temperature Fault
F4
Philips humidifier displays F4; unit may not power on or may shut down shortly after starting.
Internal Power Supply Fault
F5
Philips humidifier shows F5 and stops; fan may not run.
Fan Motor Fault (Humidifier)
F6
Philips humidifier displays F6; unit may continue to run but with limited control response.
Touch Panel / Keypad Communication Error
HI
Philips humidifier or dehumidifier displays HI for humidity or temperature and may not regulate properly.
High Humidity / High Temperature Indication or Sensor Out-of-Range
LO
Philips dehumidifier or humidifier displays LO and does not operate normally.
Low Temperature Protection / Out-of-Range Sensor Reading
Symptom
Dehumidifier does not turn on at all; no lights or sounds.
No Power / Dead Unit
Symptom
Dehumidifier fan runs but compressor never starts; air is not noticeably warmer at the outlet.
Compressor Not Starting
Symptom
Dehumidifier leaks water onto the floor instead of into the tank or drain hose.
Water Leakage from Collection System
Symptom
Dehumidifier makes loud rattling or grinding noises during operation.
Mechanical Noise from Fan or Compressor Mounts
Symptom
Dehumidifier runs but does not collect water; humidity in the room remains high.
Refrigerant Loss or Low Cooling Capacity
Symptom
Dehumidifier runs for a few minutes then the evaporator coil ices over and airflow drops.
Evaporator Coil Freezing
Symptom
Dehumidifier stops after a short time and the water tank is nearly empty; bucket full indicator may be on.
False Bucket Full Detection
Symptom
Dehumidifier vibrates excessively and may move on the floor during operation.
Excessive Vibration / Imbalance
Symptom
Humidifier display and buttons work, but the fan does not run and no air comes out.
Fan Motor Failure (Humidifier)
Symptom
Humidifier emits an unpleasant or musty odor during operation.
Microbial Growth in Water System
Symptom
Humidifier is running but no visible mist or humidity increase is observed.
No Mist Production (Ultrasonic Humidifier)
Symptom
Humidifier leaves white dust on nearby furniture and surfaces.
Mineral Dust Emission (Ultrasonic Models)
Symptom
Humidifier or dehumidifier controls are unresponsive or change settings by themselves.
Touch Panel Malfunction
Symptom
Humidifier or dehumidifier shows incorrect humidity readings compared to a separate hygrometer.
Humidity Sensor Calibration Drift
Symptom
Humidifier produces a weak mist and seems to have reduced output compared to when new.
Reduced Humidification Capacity
Symptom
Humidifier shuts off even though the water tank is still partially full.
Premature Low-Water Shutoff
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| CF |
Philips humidifier displays CF or a filter icon and may beep; unit still runs but requests maintenance.
|
Filter Replacement / Cleaning Reminder | View Details |
| E1 |
Philips dehumidifier stops and displays E1 on the control panel; unit may beep and refuse to start dehumidifying.
|
Room Temperature Sensor Fault | View Details |
| E2 |
Philips dehumidifier shows E2 and stops; fan may still run but compressor does not start.
|
Evaporator Coil Temperature Sensor Fault | View Details |
| E3 |
Philips dehumidifier displays E3 and will not start dehumidifying; sometimes occurs after long operation.
|
Humidity Sensor Fault | View Details |
| E4 |
Philips dehumidifier shows E4 and shuts down; may be accompanied by compressor not starting or stopping quickly.
|
Refrigerant System Protection / High or Low Temperature Fault | View Details |
| E5 |
Philips dehumidifier displays E5 and stops; fan may run briefly then shut off.
|
Water Level Sensor / Float Switch Fault | View Details |
| E6 |
Philips dehumidifier shows E6; unit may not respond to control inputs or may shut down unexpectedly.
|
Communication Error Between Display PCB and Main PCB | View Details |
| E7 |
Philips dehumidifier displays E7 and will not start; sometimes occurs after a power surge.
|
EEPROM / Memory Error | View Details |
| E8 |
Philips dehumidifier shows E8; compressor does not start and unit may beep repeatedly.
|
Compressor Overload / Current Protection Fault | View Details |
| E9 |
Philips dehumidifier displays E9 and stops; may be associated with abnormal fan behavior.
|
Fan Motor Feedback / Tachometer Error | View Details |
| F0 |
Philips humidifier displays F0 and stops producing mist; water tank may be full and correctly seated.
|
Water Level Detection Error (Humidifier) | View Details |
| F1 |
Philips humidifier shows F1 and does not generate mist; fan may still run.
|
Humidity Sensor Fault (Humidifier) | View Details |
| F2 |
Philips ultrasonic humidifier displays F2 and stops misting; water is present in the tank.
|
Ultrasonic Transducer / Nebulizer Fault | View Details |
| F3 |
Philips warm-mist humidifier shows F3 and shuts off; no steam is produced.
|
Overheat / Boiling Chamber Temperature Fault | View Details |
| F4 |
Philips humidifier displays F4; unit may not power on or may shut down shortly after starting.
|
Internal Power Supply Fault | View Details |
| F5 |
Philips humidifier shows F5 and stops; fan may not run.
|
Fan Motor Fault (Humidifier) | View Details |
| F6 |
Philips humidifier displays F6; unit may continue to run but with limited control response.
|
Touch Panel / Keypad Communication Error | View Details |
| HI |
Philips humidifier or dehumidifier displays HI for humidity or temperature and may not regulate properly.
|
High Humidity / High Temperature Indication or Sensor Out-of-Range | View Details |
| LO |
Philips dehumidifier or humidifier displays LO and does not operate normally.
|
Low Temperature Protection / Out-of-Range Sensor Reading | View Details |
| – |
Dehumidifier does not turn on at all; no lights or sounds.
|
No Power / Dead Unit | View Details |
| – |
Dehumidifier fan runs but compressor never starts; air is not noticeably warmer at the outlet.
|
Compressor Not Starting | View Details |
| – |
Dehumidifier leaks water onto the floor instead of into the tank or drain hose.
|
Water Leakage from Collection System | View Details |
| – |
Dehumidifier makes loud rattling or grinding noises during operation.
|
Mechanical Noise from Fan or Compressor Mounts | View Details |
| – |
Dehumidifier runs but does not collect water; humidity in the room remains high.
|
Refrigerant Loss or Low Cooling Capacity | View Details |
| – |
Dehumidifier runs for a few minutes then the evaporator coil ices over and airflow drops.
|
Evaporator Coil Freezing | View Details |
| – |
Dehumidifier stops after a short time and the water tank is nearly empty; bucket full indicator may be on.
|
False Bucket Full Detection | View Details |
| – |
Dehumidifier vibrates excessively and may move on the floor during operation.
|
Excessive Vibration / Imbalance | View Details |
| – |
Humidifier display and buttons work, but the fan does not run and no air comes out.
|
Fan Motor Failure (Humidifier) | View Details |
| – |
Humidifier emits an unpleasant or musty odor during operation.
|
Microbial Growth in Water System | View Details |
| – |
Humidifier is running but no visible mist or humidity increase is observed.
|
No Mist Production (Ultrasonic Humidifier) | View Details |
| – |
Humidifier leaves white dust on nearby furniture and surfaces.
|
Mineral Dust Emission (Ultrasonic Models) | View Details |
| – |
Humidifier or dehumidifier controls are unresponsive or change settings by themselves.
|
Touch Panel Malfunction | View Details |
| – |
Humidifier or dehumidifier shows incorrect humidity readings compared to a separate hygrometer.
|
Humidity Sensor Calibration Drift | View Details |
| – |
Humidifier produces a weak mist and seems to have reduced output compared to when new.
|
Reduced Humidification Capacity | View Details |
| – |
Humidifier shuts off even though the water tank is still partially full.
|
Premature Low-Water Shutoff | View Details |
No matching codes found
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