Cecotec Humidifiers & Dehumidifiers Error Codes

E1

Dehumidifier will not start and displays E1 on the control panel

Room Temperature Sensor Failure

E2

Dehumidifier stops and shows E2 on the display, fan may still run briefly

Evaporator Coil Temperature Sensor Failure

E3

Dehumidifier displays E3 and will not start dehumidification

Humidity Sensor (RH Sensor) Failure

E4

Dehumidifier shows E4 and stops cooling, fan may run intermittently

Defrost Sensor or Anti-Frost Protection Fault

E5

Dehumidifier beeps and shows E5, compressor does not start

Compressor Overload or High-Pressure Protection Fault

E6

Dehumidifier shows E6 and stops, fan may still operate

Fan Motor or Fan Feedback Fault

E7

Dehumidifier displays E7 and does not dehumidify

Water Level Sensor or Float Switch Fault

E8

Dehumidifier shows E8 and shuts down shortly after starting

Low Refrigerant or Refrigeration System Protection Fault

E9

Dehumidifier displays E9 and will not run the compressor

EEPROM or Control Board Memory Error

EC

Dehumidifier shows EC and stops dehumidifying

Refrigerant System Error / Sensor Calibration Error

F1

Humidifier shows F1 and stops producing mist

Water Level Sensor Fault (Humidifier Reservoir)

F2

Humidifier displays F2 and mist output stops

Ultrasonic Transducer Overheat or Dry-Run Protection

F3

Humidifier shows F3 and controls may be unresponsive

Humidity Sensor Fault (Humidifier)

F4

Humidifier displays F4 and shuts down unexpectedly

Overheat Protection or Temperature Sensor Fault

HI

Dehumidifier display shows HI and runs continuously

High Humidity Indication / Sensor Out of Range

LO

Dehumidifier display shows LO and compressor does not run

Low Temperature Lockout

P1

Dehumidifier shows P1 and does not start dehumidifying

Defrost Mode Active / Low Temperature Protection

P2

Dehumidifier shows P2 and stops, water tank is full

Water Tank Full Indication

Symptom

Dehumidifier display and buttons do not respond, but unit is powered

Unresponsive Control Panel / Keypad Failure

Symptom

Dehumidifier emits a burning smell or hot plastic odor

Overheating Component / Electrical Fault

Symptom

Dehumidifier fan runs but compressor cycles on and off rapidly

Short Cycling / Compressor Control Fault

Symptom

Dehumidifier ice buildup on evaporator fins and reduced airflow

Evaporator Icing / Defrost Failure

Symptom

Dehumidifier makes loud rattling or grinding noise during operation

Mechanical Noise / Fan or Compressor Mounting Fault

Symptom

Dehumidifier powers on but fan does not run, compressor may start briefly then stop

Fan Not Running / Airflow Failure

Symptom

Dehumidifier runs but does not collect water in the tank

No Dehumidification / Poor Moisture Removal

Symptom

Dehumidifier runs continuously and never reaches the set humidity

Inaccurate Humidity Control / Sensor or Sizing Issue

Symptom

Dehumidifier stops frequently with water tank not full

False Tank Full Detection

Symptom

Dehumidifier vibrates excessively and moves on the floor

Excessive Vibration / Imbalanced Fan or Loose Mounts

Symptom

Dehumidifier will not power on at all (no lights, no display)

No Power / Power Supply Failure

Symptom

Humidifier creates white dust on nearby surfaces

Mineral Dust Emission

Symptom

Humidifier display works but buttons do not change settings

Keypad / Touch Sensor Failure

Symptom

Humidifier emits unpleasant or musty odor during operation

Odor / Microbial Growth in Water System

Symptom

Humidifier leaks water around the base or onto furniture

Water Leak / Tank or Seal Failure

Symptom

Humidifier produces weak mist even at maximum setting

Reduced Mist Output / Flow Restriction

Symptom

Humidifier runs but no visible mist is produced

No Mist Output / Ultrasonic Failure

Symptom

Humidifier shuts off after a few minutes even with water in the tank

Premature Shutoff / Level or Overheat Protection

Symptom

Water leaking from the bottom of the dehumidifier onto the floor

Water Leak / Drainage System Fault