Pro Breeze
Pro Breeze 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
Dehumidifier displays CF after extended use; unit may still run.
Filter Cleaning Reminder / Airflow Maintenance Indicator
E1
Dehumidifier will not start and displays E1 on the control panel.
Room Temperature Sensor Fault
E2
Dehumidifier stops working and shows E2 on the display.
Evaporator Coil Temperature Sensor Fault
E3
Dehumidifier displays E3 and will not run the compressor.
Humidity Sensor / Humidistat Fault
E4
Dehumidifier shows E4 and shuts down shortly after starting.
Refrigeration System / Defrost Protection Fault (Coil Overheat or Freeze Detection Error)
E5
Dehumidifier displays E5 and will not start the compressor.
Compressor Overload / High Temperature Protection Fault
E6
Dehumidifier shows E6 and the fan does not run or runs erratically.
Fan Motor / Fan Feedback Fault
E7
Dehumidifier displays E7 and stops operating.
Internal Communication / Control Board Fault
E8
Dehumidifier shows E8 and will not run, or shuts off shortly after starting.
High Humidity Sensor Range / Calibration Error
E9
Dehumidifier displays E9 and beeps; unit will not start normal operation.
EEPROM / Memory Error on Control Board
EC
Dehumidifier shows EC and stops cooling; fan may still run.
Refrigerant System / Cooling Efficiency Error
F0
Dehumidifier displays F0 and does not respond to button presses.
Keypad / Touch Panel Fault
F1
Dehumidifier shows F1 and beeps; unit may still run in a limited mode.
Fan Speed Feedback / Tachometer Error
F2
Dehumidifier displays F2 and stops operation.
Water Level Sensor / Float Error
HI
Dehumidifier display shows HI and may run continuously.
High Humidity / Sensor Upper Range Indication
LO
Dehumidifier display shows LO and the compressor does not run.
Low Temperature Display / Protection
P1
Dehumidifier shows P1 and does not start dehumidifying.
Defrost Mode Active / Low Temperature Protection
P2
Dehumidifier displays P2 and stops collecting water.
Bucket Full / Drainage Protection
P3
Dehumidifier shows P3 and will not start the compressor.
Low Temperature Lockout / Anti-Freeze Protection
Symptom
Dehumidifier controls are unresponsive; buttons do not change settings.
Keypad / Touch Control Failure
Symptom
Dehumidifier display and buttons work, but fan does not run at all.
Fan Not Running
Symptom
Dehumidifier display is blank or very dim, but the unit still runs when plugged in.
Display / Backlight Failure
Symptom
Dehumidifier does not power on at all (no lights, no display).
No Power / Input Power Failure
Symptom
Dehumidifier does not reach the set humidity; room stays more humid than target.
Under-Dehumidification / Capacity Issue
Symptom
Dehumidifier emits a musty or moldy smell from the air outlet.
Mold / Bacterial Growth in Water Path
Symptom
Dehumidifier fan runs but there is a burning smell or hot plastic odor.
Overheating Component / Electrical Smell
Symptom
Dehumidifier is very noisy during operation (rattling, buzzing, or grinding).
Excessive Noise / Vibration
Symptom
Dehumidifier over-dries the room; humidity drops well below the setpoint.
Over-Dehumidification / Humidistat Not Limiting
Symptom
Dehumidifier powers on but compressor never starts; fan may run continuously.
Compressor Not Starting
Symptom
Dehumidifier runs but does not collect water; humidity in room does not decrease.
No Dehumidification / Poor Moisture Removal
Symptom
Dehumidifier runs for a few minutes then shuts off; may restart after a while.
Overheating / Thermal Protection Trip
Symptom
Dehumidifier shows bucket full indicator even when the tank is empty and correctly installed.
False Bucket Full Detection
Symptom
Dehumidifier turns on and off rapidly (short cycling) without reaching set humidity.
Short Cycling / Control Instability
Symptom
Dehumidifier vibrates excessively and may move on the floor during operation.
Excessive Vibration
Symptom
Dehumidifier with built-in humidifier function (on some Pro Breeze models) does not produce mist.
Humidifier Ultrasonic / Pump Failure
Symptom
Humidifier function produces very little mist or output is greatly reduced.
Reduced Humidifier Output
Symptom
Humidifier leaks water around the base or onto the table/floor.
Humidifier Water Leakage
Symptom
Humidifier or dehumidifier function causes circuit breaker to trip or fuse to blow.
Overcurrent / Short Circuit
Symptom
Humidifier produces white dust on nearby surfaces.
Mineral Dust Emission
Symptom
Water leaks from the bottom or sides of the dehumidifier instead of into the tank or drain hose.
Water Leakage
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| CF |
Dehumidifier displays CF after extended use; unit may still run.
|
Filter Cleaning Reminder / Airflow Maintenance Indicator | View Details |
| E1 |
Dehumidifier will not start and displays E1 on the control panel.
|
Room Temperature Sensor Fault | View Details |
| E2 |
Dehumidifier stops working and shows E2 on the display.
|
Evaporator Coil Temperature Sensor Fault | View Details |
| E3 |
Dehumidifier displays E3 and will not run the compressor.
|
Humidity Sensor / Humidistat Fault | View Details |
| E4 |
Dehumidifier shows E4 and shuts down shortly after starting.
|
Refrigeration System / Defrost Protection Fault (Coil Overheat or Freeze Detection Error) | View Details |
| E5 |
Dehumidifier displays E5 and will not start the compressor.
|
Compressor Overload / High Temperature Protection Fault | View Details |
| E6 |
Dehumidifier shows E6 and the fan does not run or runs erratically.
|
Fan Motor / Fan Feedback Fault | View Details |
| E7 |
Dehumidifier displays E7 and stops operating.
|
Internal Communication / Control Board Fault | View Details |
| E8 |
Dehumidifier shows E8 and will not run, or shuts off shortly after starting.
|
High Humidity Sensor Range / Calibration Error | View Details |
| E9 |
Dehumidifier displays E9 and beeps; unit will not start normal operation.
|
EEPROM / Memory Error on Control Board | View Details |
| EC |
Dehumidifier shows EC and stops cooling; fan may still run.
|
Refrigerant System / Cooling Efficiency Error | View Details |
| F0 |
Dehumidifier displays F0 and does not respond to button presses.
|
Keypad / Touch Panel Fault | View Details |
| F1 |
Dehumidifier shows F1 and beeps; unit may still run in a limited mode.
|
Fan Speed Feedback / Tachometer Error | View Details |
| F2 |
Dehumidifier displays F2 and stops operation.
|
Water Level Sensor / Float Error | View Details |
| HI |
Dehumidifier display shows HI and may run continuously.
|
High Humidity / Sensor Upper Range Indication | View Details |
| LO |
Dehumidifier display shows LO and the compressor does not run.
|
Low Temperature Display / Protection | View Details |
| P1 |
Dehumidifier shows P1 and does not start dehumidifying.
|
Defrost Mode Active / Low Temperature Protection | View Details |
| P2 |
Dehumidifier displays P2 and stops collecting water.
|
Bucket Full / Drainage Protection | View Details |
| P3 |
Dehumidifier shows P3 and will not start the compressor.
|
Low Temperature Lockout / Anti-Freeze Protection | View Details |
| – |
Dehumidifier controls are unresponsive; buttons do not change settings.
|
Keypad / Touch Control Failure | View Details |
| – |
Dehumidifier display and buttons work, but fan does not run at all.
|
Fan Not Running | View Details |
| – |
Dehumidifier display is blank or very dim, but the unit still runs when plugged in.
|
Display / Backlight Failure | View Details |
| – |
Dehumidifier does not power on at all (no lights, no display).
|
No Power / Input Power Failure | View Details |
| – |
Dehumidifier does not reach the set humidity; room stays more humid than target.
|
Under-Dehumidification / Capacity Issue | View Details |
| – |
Dehumidifier emits a musty or moldy smell from the air outlet.
|
Mold / Bacterial Growth in Water Path | View Details |
| – |
Dehumidifier fan runs but there is a burning smell or hot plastic odor.
|
Overheating Component / Electrical Smell | View Details |
| – |
Dehumidifier is very noisy during operation (rattling, buzzing, or grinding).
|
Excessive Noise / Vibration | View Details |
| – |
Dehumidifier over-dries the room; humidity drops well below the setpoint.
|
Over-Dehumidification / Humidistat Not Limiting | View Details |
| – |
Dehumidifier powers on but compressor never starts; fan may run continuously.
|
Compressor Not Starting | View Details |
| – |
Dehumidifier runs but does not collect water; humidity in room does not decrease.
|
No Dehumidification / Poor Moisture Removal | View Details |
| – |
Dehumidifier runs for a few minutes then shuts off; may restart after a while.
|
Overheating / Thermal Protection Trip | View Details |
| – |
Dehumidifier shows bucket full indicator even when the tank is empty and correctly installed.
|
False Bucket Full Detection | View Details |
| – |
Dehumidifier turns on and off rapidly (short cycling) without reaching set humidity.
|
Short Cycling / Control Instability | View Details |
| – |
Dehumidifier vibrates excessively and may move on the floor during operation.
|
Excessive Vibration | View Details |
| – |
Dehumidifier with built-in humidifier function (on some Pro Breeze models) does not produce mist.
|
Humidifier Ultrasonic / Pump Failure | View Details |
| – |
Humidifier function produces very little mist or output is greatly reduced.
|
Reduced Humidifier Output | View Details |
| – |
Humidifier leaks water around the base or onto the table/floor.
|
Humidifier Water Leakage | View Details |
| – |
Humidifier or dehumidifier function causes circuit breaker to trip or fuse to blow.
|
Overcurrent / Short Circuit | View Details |
| – |
Humidifier produces white dust on nearby surfaces.
|
Mineral Dust Emission | View Details |
| – |
Water leaks from the bottom or sides of the dehumidifier instead of into the tank or drain hose.
|
Water Leakage | View Details |
No matching codes found
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