Crane
Crane 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
Crane dehumidifier shows E1 and will not start dehumidifying.
Room Temperature Sensor Fault (Dehumidifier)
E1
Crane ultrasonic humidifier will not power on; display shows E1 or flashes briefly then shuts off.
Power Supply / Control Board Fault
E2
Crane dehumidifier shows E2 and shuts down shortly after starting.
Evaporator Temperature Sensor Fault (Dehumidifier)
E2
Crane ultrasonic humidifier powers on but shows E2 and will not produce mist.
Water Level Sensor / Float Switch Error
E3
Crane dehumidifier displays E3 and the fan may run but compressor does not engage.
Humidity Sensor Fault (Dehumidifier)
E3
Crane ultrasonic humidifier displays E3 and shuts off mist output shortly after starting.
Overheat / Dry-Run Protection Triggered
E4
Crane dehumidifier shows E4 and stops; bucket is correctly installed and not full.
Bucket Full Switch / Float Switch Error
E4
Crane ultrasonic humidifier shows E4 and the mist output is disabled.
Ultrasonic Transducer / Nebulizer Fault
E5
Crane dehumidifier displays E5 and shuts down; may coincide with frost on the coil.
Defrost Sensor / Defrost Cycle Fault
E5
Crane warm & cool mist humidifier shows E5 and warm mist function will not operate.
Heater Element / Overheat Protection Fault
E6
Crane smart humidifier with built-in humidistat shows E6 and ignores humidity setpoint.
Humidity Sensor / RH Probe Fault
E7
Crane smart humidifier displays E7 and Wi‑Fi or app control is unavailable.
Wi‑Fi Module / Communication Fault
E8
Crane dehumidifier displays E8 and stops dehumidifying.
High Temperature / Overheat Protection (Dehumidifier)
E9
Crane dehumidifier shows E9 and the compressor does not start.
Compressor / Refrigeration System Fault
EC
Crane dehumidifier displays EC and stops running; may restart briefly then show EC again.
Refrigerant System / Low Pressure Error
F0
Crane dehumidifier shows F0 and will not respond to control inputs.
Control Panel / Keypad Communication Error
F1
Crane dehumidifier shows F1 and fan does not run.
Fan Motor / Fan Drive Fault
F2
Crane dehumidifier shows F2 and the unit cycles on and off rapidly.
Voltage / Power Supply Fault
Symptom
Crane dehumidifier bucket fills too quickly or overflows even when continuous drain hose is attached.
Continuous Drain Malfunction
Symptom
Crane dehumidifier fan runs but compressor cycles on and off frequently with little water removal.
Short Cycling / Improper Refrigeration Control
Symptom
Crane dehumidifier makes a high-pitched whine or humming from the compressor area.
Compressor or Refrigerant Flow Noise
Symptom
Crane dehumidifier runs but does not collect water in the bucket.
No Dehumidification / Poor Moisture Removal
Symptom
Crane dehumidifier shuts off and will not run; bucket full light is on even when bucket is empty.
False Bucket Full Detection
Symptom
Crane humidifier base fills with water and overflows internally, sometimes causing gurgling sounds.
Internal Overflow / Tank Valve Not Sealing
Symptom
Crane humidifier display and lights work, but the fan does not run and no mist exits the unit.
Fan Motor Failure (Humidifier)
Symptom
Crane humidifier emits a loud buzzing or rattling noise during operation.
Fan or Vibrational Noise
Symptom
Crane humidifier leaks water from the base onto the table or floor.
External Water Leakage
Symptom
Crane humidifier leaves white dust on nearby furniture and surfaces.
Mineral Dust Emission
Symptom
Crane humidifier power light blinks and unit will not start.
Protection Mode / Internal Fault
Symptom
Crane humidifier produces a strong musty or moldy odor from the mist.
Microbial Growth in Water Path
Symptom
Crane humidifier randomly turns on or off, or changes settings by itself.
Control Panel / Touch Sensor Interference
Symptom
Crane humidifier turns on but shuts off after a few seconds with no error code.
Water Level Protection Triggering Prematurely
Symptom
Crane humidifier with built-in humidistat runs continuously and does not shut off at the set humidity.
Humidity Sensing / Control Fault
Symptom
Crane humidifier's night light or LED accent light does not work, but mist function is normal.
LED Lighting Circuit Failure
Symptom
Crane ultrasonic humidifier produces very weak mist even on the highest setting.
Restricted Mist Output / Partial Transducer Degradation
Symptom
Crane ultrasonic humidifier runs but produces no mist at all.
Ultrasonic Transducer Not Oscillating
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Crane dehumidifier shows E1 and will not start dehumidifying.
|
Room Temperature Sensor Fault (Dehumidifier) | View Details |
| E1 |
Crane ultrasonic humidifier will not power on; display shows E1 or flashes briefly then shuts off.
|
Power Supply / Control Board Fault | View Details |
| E2 |
Crane dehumidifier shows E2 and shuts down shortly after starting.
|
Evaporator Temperature Sensor Fault (Dehumidifier) | View Details |
| E2 |
Crane ultrasonic humidifier powers on but shows E2 and will not produce mist.
|
Water Level Sensor / Float Switch Error | View Details |
| E3 |
Crane dehumidifier displays E3 and the fan may run but compressor does not engage.
|
Humidity Sensor Fault (Dehumidifier) | View Details |
| E3 |
Crane ultrasonic humidifier displays E3 and shuts off mist output shortly after starting.
|
Overheat / Dry-Run Protection Triggered | View Details |
| E4 |
Crane dehumidifier shows E4 and stops; bucket is correctly installed and not full.
|
Bucket Full Switch / Float Switch Error | View Details |
| E4 |
Crane ultrasonic humidifier shows E4 and the mist output is disabled.
|
Ultrasonic Transducer / Nebulizer Fault | View Details |
| E5 |
Crane dehumidifier displays E5 and shuts down; may coincide with frost on the coil.
|
Defrost Sensor / Defrost Cycle Fault | View Details |
| E5 |
Crane warm & cool mist humidifier shows E5 and warm mist function will not operate.
|
Heater Element / Overheat Protection Fault | View Details |
| E6 |
Crane smart humidifier with built-in humidistat shows E6 and ignores humidity setpoint.
|
Humidity Sensor / RH Probe Fault | View Details |
| E7 |
Crane smart humidifier displays E7 and Wi‑Fi or app control is unavailable.
|
Wi‑Fi Module / Communication Fault | View Details |
| E8 |
Crane dehumidifier displays E8 and stops dehumidifying.
|
High Temperature / Overheat Protection (Dehumidifier) | View Details |
| E9 |
Crane dehumidifier shows E9 and the compressor does not start.
|
Compressor / Refrigeration System Fault | View Details |
| EC |
Crane dehumidifier displays EC and stops running; may restart briefly then show EC again.
|
Refrigerant System / Low Pressure Error | View Details |
| F0 |
Crane dehumidifier shows F0 and will not respond to control inputs.
|
Control Panel / Keypad Communication Error | View Details |
| F1 |
Crane dehumidifier shows F1 and fan does not run.
|
Fan Motor / Fan Drive Fault | View Details |
| F2 |
Crane dehumidifier shows F2 and the unit cycles on and off rapidly.
|
Voltage / Power Supply Fault | View Details |
| – |
Crane dehumidifier bucket fills too quickly or overflows even when continuous drain hose is attached.
|
Continuous Drain Malfunction | View Details |
| – |
Crane dehumidifier fan runs but compressor cycles on and off frequently with little water removal.
|
Short Cycling / Improper Refrigeration Control | View Details |
| – |
Crane dehumidifier makes a high-pitched whine or humming from the compressor area.
|
Compressor or Refrigerant Flow Noise | View Details |
| – |
Crane dehumidifier runs but does not collect water in the bucket.
|
No Dehumidification / Poor Moisture Removal | View Details |
| – |
Crane dehumidifier shuts off and will not run; bucket full light is on even when bucket is empty.
|
False Bucket Full Detection | View Details |
| – |
Crane humidifier base fills with water and overflows internally, sometimes causing gurgling sounds.
|
Internal Overflow / Tank Valve Not Sealing | View Details |
| – |
Crane humidifier display and lights work, but the fan does not run and no mist exits the unit.
|
Fan Motor Failure (Humidifier) | View Details |
| – |
Crane humidifier emits a loud buzzing or rattling noise during operation.
|
Fan or Vibrational Noise | View Details |
| – |
Crane humidifier leaks water from the base onto the table or floor.
|
External Water Leakage | View Details |
| – |
Crane humidifier leaves white dust on nearby furniture and surfaces.
|
Mineral Dust Emission | View Details |
| – |
Crane humidifier power light blinks and unit will not start.
|
Protection Mode / Internal Fault | View Details |
| – |
Crane humidifier produces a strong musty or moldy odor from the mist.
|
Microbial Growth in Water Path | View Details |
| – |
Crane humidifier randomly turns on or off, or changes settings by itself.
|
Control Panel / Touch Sensor Interference | View Details |
| – |
Crane humidifier turns on but shuts off after a few seconds with no error code.
|
Water Level Protection Triggering Prematurely | View Details |
| – |
Crane humidifier with built-in humidistat runs continuously and does not shut off at the set humidity.
|
Humidity Sensing / Control Fault | View Details |
| – |
Crane humidifier's night light or LED accent light does not work, but mist function is normal.
|
LED Lighting Circuit Failure | View Details |
| – |
Crane ultrasonic humidifier produces very weak mist even on the highest setting.
|
Restricted Mist Output / Partial Transducer Degradation | View Details |
| – |
Crane ultrasonic humidifier runs but produces no mist at all.
|
Ultrasonic Transducer Not Oscillating | View Details |
No matching codes found
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