Pro Breeze Air Conditioners Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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CF
CF code appears after extended use; unit still operates normally.
Filter Cleaning Reminder
E0
Unit will not start and displays E0 on the control panel.
EEPROM / Main Control Board Communication Error
E1
E1 is displayed and the unit stops cooling intermittently.
Room Temperature Sensor (Ambient Thermistor) Fault
E2
E2 error is displayed, and the unit runs the fan but has no cooling control; the temperature reading is inaccurate.
Evaporator Coil Temperature Sensor Fault
E3
E3 error is displayed; the compressor does not start or stops quickly after starting.
Compressor Overload / High Current Protection
E4
E4 error appears, and the unit stops cooling, sometimes after running for a while.
High-Pressure Protection / Condenser Overheat
E5
E5 error is displayed, and the unit shuts down, often associated with water tank or drainage issues.
Full Condensate Tank / Drainage Protection
E6
E6 error is displayed; the unit may run the fan, but the compressor does not start or stops quickly.
Communication Error Between Display Board and Main PCB
E7
E7 error is displayed; the unit may blow air but cannot change modes or temperature correctly.
Keypad / Control Panel Fault
E8
E8 error: unit shuts down or runs at reduced capacity, sometimes with loud compressor noise.
Low Refrigerant / Compressor Protection
E9
E9 error: unit may not respond to remote or may shut down unexpectedly.
EEPROM / Configuration Data Error
EC
EC error, unit stops cooling and may restart after some time.
Refrigerant Leak / Low Pressure Protection
F1
F1 error: unit runs but the temperature reading is obviously wrong (e.g., shows 10°C when the room is warm).
Indoor Temperature Sensor Out of Range
F2
F2 error: unit may ice up or shut down unexpectedly during cooling.
Evaporator Freeze Protection Sensor Error
F3
F3 error: unit may not heat properly in heat mode (for heat pump models).
Outdoor / Condenser Coil Temperature Sensor Fault
F4
F4 error: compressor cycles rapidly or will not start in heat mode.
Reversing Valve / 4-Way Valve Fault (Heat Pump Models)
F5
F5 error: unit shuts down shortly after starting in very hot conditions.
Overheat Protection / Discharge Temperature Too High
H1
H1 code displayed: unit runs in heat mode with reduced output.
Defrost Mode Active (Heat Pump Models)
H3
H3 error: compressor stops and unit displays protection code.
Compressor Overload Protection
H5
H5 error: unit will not start compressor.
IPM / Inverter Module Protection (Inverter Models)
P1
P1 code displayed, and unit stops cooling, often in dehumidify mode.
High Water Level / Condensate Tank Full
P2
P2 code, unit stops and beeps, often in high humidity conditions.
Secondary Water Level Protection
Symptom
Burning or electrical smell when unit is operating
Overheating Electrical Component
Symptom
Display works but buttons on the unit do not respond
Local Keypad Failure
Symptom
Excessive noise or rattling during operation.
Mechanical Vibration / Loose Components
Symptom
Loud grinding or squealing noise from fan area
Fan Motor Bearing Failure
Symptom
Musty or moldy smell from the air conditioner
Biological Growth in Evaporator and Drain System
Symptom
Remote control does not operate the unit
Remote Control / IR Receiver Failure
Symptom
Swing louver does not move or is stuck in one position.
Air Louver Motor / Linkage Failure
Symptom
The unit runs in dehumidify (DRY) mode but collects very little water.
Low Dehumidification Performance
Symptom
Timer or sleep functions do not work correctly
Control Logic / Timer Circuit Fault
Symptom
Unit blows warm air in COOL mode
Cooling Mode Not Engaging
Symptom
Unit frequently turns on and off (short cycling).
Short Cycling / Improper Thermostat Control
Symptom
Unit ices up with visible frost on the evaporator coil
Evaporator Coil Icing
Symptom
Unit runs but does not cool the room effectively.
Insufficient Cooling Capacity / Airflow Restriction
Symptom
Unit trips the household circuit breaker when starting
Overcurrent / Short Circuit on Startup
Symptom
Unit turns on but compressor never starts (only fan runs, no cooling).
Compressor Start Failure
Symptom
Unit vibrates excessively and moves on the floor (portable models)
Imbalanced Fan or Loose Mounting
Symptom
Unit will not turn on at all (no lights, no display).
No Power / Input Power Failure
Symptom
Water leaking from the front or sides of the unit.
Condensate Drainage Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| CF |
CF code appears after extended use; unit still operates normally.
|
Filter Cleaning Reminder | View Details |
| E0 |
Unit will not start and displays E0 on the control panel.
|
EEPROM / Main Control Board Communication Error | View Details |
| E1 |
E1 is displayed and the unit stops cooling intermittently.
|
Room Temperature Sensor (Ambient Thermistor) Fault | View Details |
| E2 |
E2 error is displayed, and the unit runs the fan but has no cooling control; the temperature reading is inaccurate.
|
Evaporator Coil Temperature Sensor Fault | View Details |
| E3 |
E3 error is displayed; the compressor does not start or stops quickly after starting.
|
Compressor Overload / High Current Protection | View Details |
| E4 |
E4 error appears, and the unit stops cooling, sometimes after running for a while.
|
High-Pressure Protection / Condenser Overheat | View Details |
| E5 |
E5 error is displayed, and the unit shuts down, often associated with water tank or drainage issues.
|
Full Condensate Tank / Drainage Protection | View Details |
| E6 |
E6 error is displayed; the unit may run the fan, but the compressor does not start or stops quickly.
|
Communication Error Between Display Board and Main PCB | View Details |
| E7 |
E7 error is displayed; the unit may blow air but cannot change modes or temperature correctly.
|
Keypad / Control Panel Fault | View Details |
| E8 |
E8 error: unit shuts down or runs at reduced capacity, sometimes with loud compressor noise.
|
Low Refrigerant / Compressor Protection | View Details |
| E9 |
E9 error: unit may not respond to remote or may shut down unexpectedly.
|
EEPROM / Configuration Data Error | View Details |
| EC |
EC error, unit stops cooling and may restart after some time.
|
Refrigerant Leak / Low Pressure Protection | View Details |
| F1 |
F1 error: unit runs but the temperature reading is obviously wrong (e.g., shows 10°C when the room is warm).
|
Indoor Temperature Sensor Out of Range | View Details |
| F2 |
F2 error: unit may ice up or shut down unexpectedly during cooling.
|
Evaporator Freeze Protection Sensor Error | View Details |
| F3 |
F3 error: unit may not heat properly in heat mode (for heat pump models).
|
Outdoor / Condenser Coil Temperature Sensor Fault | View Details |
| F4 |
F4 error: compressor cycles rapidly or will not start in heat mode.
|
Reversing Valve / 4-Way Valve Fault (Heat Pump Models) | View Details |
| F5 |
F5 error: unit shuts down shortly after starting in very hot conditions.
|
Overheat Protection / Discharge Temperature Too High | View Details |
| H1 |
H1 code displayed: unit runs in heat mode with reduced output.
|
Defrost Mode Active (Heat Pump Models) | View Details |
| H3 |
H3 error: compressor stops and unit displays protection code.
|
Compressor Overload Protection | View Details |
| H5 |
H5 error: unit will not start compressor.
|
IPM / Inverter Module Protection (Inverter Models) | View Details |
| P1 |
P1 code displayed, and unit stops cooling, often in dehumidify mode.
|
High Water Level / Condensate Tank Full | View Details |
| P2 |
P2 code, unit stops and beeps, often in high humidity conditions.
|
Secondary Water Level Protection | View Details |
| – |
Burning or electrical smell when unit is operating
|
Overheating Electrical Component | View Details |
| – |
Display works but buttons on the unit do not respond
|
Local Keypad Failure | View Details |
| – |
Excessive noise or rattling during operation.
|
Mechanical Vibration / Loose Components | View Details |
| – |
Loud grinding or squealing noise from fan area
|
Fan Motor Bearing Failure | View Details |
| – |
Musty or moldy smell from the air conditioner
|
Biological Growth in Evaporator and Drain System | View Details |
| – |
Remote control does not operate the unit
|
Remote Control / IR Receiver Failure | View Details |
| – |
Swing louver does not move or is stuck in one position.
|
Air Louver Motor / Linkage Failure | View Details |
| – |
The unit runs in dehumidify (DRY) mode but collects very little water.
|
Low Dehumidification Performance | View Details |
| – |
Timer or sleep functions do not work correctly
|
Control Logic / Timer Circuit Fault | View Details |
| – |
Unit blows warm air in COOL mode
|
Cooling Mode Not Engaging | View Details |
| – |
Unit frequently turns on and off (short cycling).
|
Short Cycling / Improper Thermostat Control | View Details |
| – |
Unit ices up with visible frost on the evaporator coil
|
Evaporator Coil Icing | View Details |
| – |
Unit runs but does not cool the room effectively.
|
Insufficient Cooling Capacity / Airflow Restriction | View Details |
| – |
Unit trips the household circuit breaker when starting
|
Overcurrent / Short Circuit on Startup | View Details |
| – |
Unit turns on but compressor never starts (only fan runs, no cooling).
|
Compressor Start Failure | View Details |
| – |
Unit vibrates excessively and moves on the floor (portable models)
|
Imbalanced Fan or Loose Mounting | View Details |
| – |
Unit will not turn on at all (no lights, no display).
|
No Power / Input Power Failure | View Details |
| – |
Water leaking from the front or sides of the unit.
|
Condensate Drainage Failure | View Details |
No matching codes found
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