Sencor
Sencor 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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E1
Dehumidifier will not start; display shows E1 shortly after power-on
Room Temperature Sensor Failure
E2
Dehumidifier stops and displays E2; fan may still run briefly
Evaporator Coil Temperature Sensor Failure
E3
Dehumidifier shows E3 and stops dehumidifying; compressor does not start
Humidity Sensor (RH Sensor) Failure
E4
Dehumidifier displays E4 and shuts down; may occur after running for some time
Refrigerant System / High Temperature Protection Fault
E5
Dehumidifier shows E5 and will not start compressor
Compressor Overload / Current Protection Fault
E6
Dehumidifier displays E6; controls may be unresponsive or erratic
Control Panel Communication Error
E7
Dehumidifier shows E7 and stops; fan may run but no dehumidification
Defrost Sensor or Defrost Circuit Fault
E8
Dehumidifier displays E8 and shuts down; may occur after long operation
Fan Motor or Fan Speed Feedback Error
E9
Dehumidifier shows E9 and will not run; may appear immediately at power-on
EEPROM / Memory Error on Main PCB
F0
Humidifier or dehumidifier shows F0 and stops operating
General Sensor Fault / Sensor Out of Range
F1
Humidifier displays F1 and stops misting
Water Level Sensor / Float Switch Error
F2
Humidifier shows F2; unit may beep and stop
Water Temperature Sensor Fault (Ultrasonic Humidifier)
F3
Humidifier displays F3 and does not produce mist
Ultrasonic Transducer / Nebulizer Fault
F4
Humidifier shows F4; fan may run but no mist output
Fan Motor Fault (Humidifier)
F5
Humidifier displays F5 and shuts down; may be accompanied by overheating
Overheat Protection / Thermal Fuse Triggered
HI
Display shows HI for humidity and unit may run continuously
Humidity Above Measurement Range / Sensor Saturation
LO
Display shows LO and dehumidifier does not start dehumidifying
Low Ambient Temperature Lockout
P1
Dehumidifier shows P1 and does not start dehumidifying
Defrost Mode Active / Low Temperature Protection
P2
Dehumidifier shows P2 and stops; bucket is full or appears full to the unit
Water Tank Full / Bucket Switch Activated
P3
Dehumidifier displays P3 and will not start compressor
Low Refrigerant / Refrigeration System Protection
Symptom
Dehumidifier does not power on at all; no lights or display
No Power / Power Supply Failure
Symptom
Dehumidifier fan does not run, but compressor gets hot and may hum
Fan Not Running (Dehumidifier)
Symptom
Dehumidifier leaks water onto the floor
Water Leakage / Drainage Fault
Symptom
Dehumidifier makes loud rattling or grinding noises during operation
Mechanical Noise / Vibration Fault
Symptom
Dehumidifier powers on but compressor never starts; fan runs continuously
Compressor Not Starting
Symptom
Dehumidifier runs but collects very little or no water
Poor Dehumidification Performance
Symptom
Dehumidifier stops after a few minutes and restarts repeatedly
Short Cycling
Symptom
Dehumidifier vibrates excessively and may move on the floor
Excessive Vibration
Symptom
Humidifier base accumulates water or drips from bottom
Humidifier Internal Leak
Symptom
Humidifier emits unpleasant or musty odor during operation
Odor / Microbial Growth in Water System
Symptom
Humidifier is on but produces no mist
No Mist Output (Ultrasonic Humidifier)
Symptom
Humidifier leaves white dust on furniture and surfaces
Mineral Dust Emission
Symptom
Humidifier or dehumidifier buttons do not respond or respond intermittently
Unresponsive Control Panel
Symptom
Humidifier or dehumidifier display is dim, flickering, or partially blank
Display Malfunction
Symptom
Humidifier or dehumidifier emits a burning smell
Overheating Electrical Component
Symptom
Humidifier or dehumidifier shuts off unexpectedly and will not turn back on until cooled
Thermal Overload Trip
Symptom
Humidifier produces weak mist output even at maximum setting
Reduced Mist Output
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Dehumidifier will not start; display shows E1 shortly after power-on
|
Room Temperature Sensor Failure | View Details |
| E2 |
Dehumidifier stops and displays E2; fan may still run briefly
|
Evaporator Coil Temperature Sensor Failure | View Details |
| E3 |
Dehumidifier shows E3 and stops dehumidifying; compressor does not start
|
Humidity Sensor (RH Sensor) Failure | View Details |
| E4 |
Dehumidifier displays E4 and shuts down; may occur after running for some time
|
Refrigerant System / High Temperature Protection Fault | View Details |
| E5 |
Dehumidifier shows E5 and will not start compressor
|
Compressor Overload / Current Protection Fault | View Details |
| E6 |
Dehumidifier displays E6; controls may be unresponsive or erratic
|
Control Panel Communication Error | View Details |
| E7 |
Dehumidifier shows E7 and stops; fan may run but no dehumidification
|
Defrost Sensor or Defrost Circuit Fault | View Details |
| E8 |
Dehumidifier displays E8 and shuts down; may occur after long operation
|
Fan Motor or Fan Speed Feedback Error | View Details |
| E9 |
Dehumidifier shows E9 and will not run; may appear immediately at power-on
|
EEPROM / Memory Error on Main PCB | View Details |
| F0 |
Humidifier or dehumidifier shows F0 and stops operating
|
General Sensor Fault / Sensor Out of Range | View Details |
| F1 |
Humidifier displays F1 and stops misting
|
Water Level Sensor / Float Switch Error | View Details |
| F2 |
Humidifier shows F2; unit may beep and stop
|
Water Temperature Sensor Fault (Ultrasonic Humidifier) | View Details |
| F3 |
Humidifier displays F3 and does not produce mist
|
Ultrasonic Transducer / Nebulizer Fault | View Details |
| F4 |
Humidifier shows F4; fan may run but no mist output
|
Fan Motor Fault (Humidifier) | View Details |
| F5 |
Humidifier displays F5 and shuts down; may be accompanied by overheating
|
Overheat Protection / Thermal Fuse Triggered | View Details |
| HI |
Display shows HI for humidity and unit may run continuously
|
Humidity Above Measurement Range / Sensor Saturation | View Details |
| LO |
Display shows LO and dehumidifier does not start dehumidifying
|
Low Ambient Temperature Lockout | View Details |
| P1 |
Dehumidifier shows P1 and does not start dehumidifying
|
Defrost Mode Active / Low Temperature Protection | View Details |
| P2 |
Dehumidifier shows P2 and stops; bucket is full or appears full to the unit
|
Water Tank Full / Bucket Switch Activated | View Details |
| P3 |
Dehumidifier displays P3 and will not start compressor
|
Low Refrigerant / Refrigeration System Protection | View Details |
| – |
Dehumidifier does not power on at all; no lights or display
|
No Power / Power Supply Failure | View Details |
| – |
Dehumidifier fan does not run, but compressor gets hot and may hum
|
Fan Not Running (Dehumidifier) | View Details |
| – |
Dehumidifier leaks water onto the floor
|
Water Leakage / Drainage Fault | View Details |
| – |
Dehumidifier makes loud rattling or grinding noises during operation
|
Mechanical Noise / Vibration Fault | View Details |
| – |
Dehumidifier powers on but compressor never starts; fan runs continuously
|
Compressor Not Starting | View Details |
| – |
Dehumidifier runs but collects very little or no water
|
Poor Dehumidification Performance | View Details |
| – |
Dehumidifier stops after a few minutes and restarts repeatedly
|
Short Cycling | View Details |
| – |
Dehumidifier vibrates excessively and may move on the floor
|
Excessive Vibration | View Details |
| – |
Humidifier base accumulates water or drips from bottom
|
Humidifier Internal Leak | View Details |
| – |
Humidifier emits unpleasant or musty odor during operation
|
Odor / Microbial Growth in Water System | View Details |
| – |
Humidifier is on but produces no mist
|
No Mist Output (Ultrasonic Humidifier) | View Details |
| – |
Humidifier leaves white dust on furniture and surfaces
|
Mineral Dust Emission | View Details |
| – |
Humidifier or dehumidifier buttons do not respond or respond intermittently
|
Unresponsive Control Panel | View Details |
| – |
Humidifier or dehumidifier display is dim, flickering, or partially blank
|
Display Malfunction | View Details |
| – |
Humidifier or dehumidifier emits a burning smell
|
Overheating Electrical Component | View Details |
| – |
Humidifier or dehumidifier shuts off unexpectedly and will not turn back on until cooled
|
Thermal Overload Trip | View Details |
| – |
Humidifier produces weak mist output even at maximum setting
|
Reduced Mist Output | View Details |
No matching codes found
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