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; the display shows E1 shortly after power-on.
Room Temperature Sensor Failure
E2
Dehumidifier stops and displays E2; the fan may still run briefly.
Evaporator Coil Temperature Sensor Failure
E3
Dehumidifier shows E3 and stops dehumidifying; the compressor does not start.
Humidity Sensor (RH Sensor) Failure
E4
Dehumidifier displays E4 and shuts down; this may occur after running for some time.
Refrigerant System / High Temperature Protection Fault
E5
Dehumidifier displays E5 and the compressor will not start.
Compressor Overload / Current Protection Fault
E6
Dehumidifier displays E6; controls may be unresponsive or erratic.
Control Panel Communication Error
E7
Dehumidifier displays E7 and stops; the fan may run but there is no dehumidification.
Defrost Sensor or Defrost Circuit Fault
E8
Dehumidifier displays E8 and shuts down; this may occur after long operation.
Fan Motor or Fan Speed Feedback Error
E9
Dehumidifier displays E9 and will not run; this may appear immediately at power-on.
EEPROM / Memory Error on Main PCB
F0
Humidifier or dehumidifier displays 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 displays F2; the 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 displays F4; the fan may run but there is 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
The display shows HI for humidity, and the unit may run continuously.
Humidity Above Measurement Range / Sensor Saturation
LO
The display shows LO and the dehumidifier does not start dehumidifying.
Low Ambient Temperature Lockout
P1
Dehumidifier displays P1 and does not start dehumidifying.
Defrost Mode Active / Low Temperature Protection
P2
Dehumidifier displays P2 and stops; the bucket is full or appears full to the unit.
Water Tank Full / Bucket Switch Activated
P3
Dehumidifier displays P3 and will not start the 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 the 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 the compressor never starts; the 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 an 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; the display shows E1 shortly after power-on.
|
Room Temperature Sensor Failure | View Details |
| E2 |
Dehumidifier stops and displays E2; the fan may still run briefly.
|
Evaporator Coil Temperature Sensor Failure | View Details |
| E3 |
Dehumidifier shows E3 and stops dehumidifying; the compressor does not start.
|
Humidity Sensor (RH Sensor) Failure | View Details |
| E4 |
Dehumidifier displays E4 and shuts down; this may occur after running for some time.
|
Refrigerant System / High Temperature Protection Fault | View Details |
| E5 |
Dehumidifier displays E5 and the compressor will not start.
|
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 displays E7 and stops; the fan may run but there is no dehumidification.
|
Defrost Sensor or Defrost Circuit Fault | View Details |
| E8 |
Dehumidifier displays E8 and shuts down; this may occur after long operation.
|
Fan Motor or Fan Speed Feedback Error | View Details |
| E9 |
Dehumidifier displays E9 and will not run; this may appear immediately at power-on.
|
EEPROM / Memory Error on Main PCB | View Details |
| F0 |
Humidifier or dehumidifier displays 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 displays F2; the 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 displays F4; the fan may run but there is 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 |
The display shows HI for humidity, and the unit may run continuously.
|
Humidity Above Measurement Range / Sensor Saturation | View Details |
| LO |
The display shows LO and the dehumidifier does not start dehumidifying.
|
Low Ambient Temperature Lockout | View Details |
| P1 |
Dehumidifier displays P1 and does not start dehumidifying.
|
Defrost Mode Active / Low Temperature Protection | View Details |
| P2 |
Dehumidifier displays P2 and stops; the 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 the 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 the 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 the compressor never starts; the 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 an 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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