Black+Decker 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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E1
Unit stops cooling and displays E1 on the control panel; buttons may still respond but compressor will not start.
Room Temperature Sensor (Thermistor) Fault
E2
Display shows E2 and the unit may run the fan but not cool properly; temperature setting may not respond correctly.
Evaporator Coil Temperature Sensor Fault
E3
Unit displays E3 and may shut down cooling; fan may continue to run intermittently.
Condenser Coil Temperature Sensor Fault
E4
Display shows E4 and the unit stops cooling; may beep and shut down after a short run time.
High-Temperature / Overload Protection or Defrost Sensor Error
E5
Unit displays E5 and may stop cooling or shut down shortly after starting.
Water Tank Full / Condensate Overflow Protection Fault
E6
Display shows E6 and the unit may not respond to some commands or may shut down unexpectedly.
Communication Error Between Display Board and Main Control Board
E7
Unit shows E7 and may not start cooling; some modes may be disabled.
Mode Control or EEPROM Configuration Error
E8
Display shows E8 and the unit may shut down or run only the fan; compressor does not engage.
Overload / Overcurrent Protection or Fan Motor Feedback Error
E9
Unit displays E9 and may not start or may shut down unexpectedly; sometimes associated with power interruptions.
EEPROM / Internal Memory Error
F1
Display shows F1 and the unit may not cool or may run erratically.
Indoor Ambient Temperature Sensor Fault
F2
Display shows F2 and the unit may shut down or fail to start cooling.
Evaporator Freeze Protection Sensor Fault
F3
Display shows F3 and the unit may run only in fan mode or shut down cooling quickly.
Condenser Overheat Sensor Fault
H1
Display shows H1 and the unit may run in a defrost-like mode or limit cooling.
Low-Temperature / Defrost Protection Active
H3
Display shows H3 and the compressor does not start or shuts off quickly.
Compressor Overload Protection
H5
Display shows H5 and the unit may not start or may shut down unexpectedly.
Overcurrent Protection / IPM Protection
H6
Display shows H6 and the indoor fan does not run or runs intermittently.
Indoor Blower Motor Fault
H8
Display shows H8 and the unit stops cooling; often associated with high ambient temperatures.
High-Pressure Protection / Overload Trip
P1
Display shows P1 and the unit stops cooling; often accompanied by a water full indicator.
Internal Condensate Tank Full Protection
P2
Display shows P2 and the unit may stop cooling or switch to fan mode.
Secondary Water Level or Pump Protection Fault
Symptom
Air conditioner runs but does not cool the room effectively; air from the front is only slightly cool or room temperature.
Insufficient Cooling Performance
Symptom
Burning or electrical smell when the unit is operating.
Overheating Electrical Component
Symptom
Buttons on the control panel do not respond or respond intermittently, but the display is lit.
Keypad / User Interface Failure
Symptom
Condenser fan at the rear does not spin, but the compressor runs and the unit overheats or shuts down.
Condenser Fan Not Running
Symptom
Display shows incorrect room temperature compared to an accurate thermometer; cooling performance seems mismatched to setpoint.
Inaccurate Temperature Sensing / Calibration Drift
Symptom
Evaporator coil freezes over with ice, and airflow from the front decreases significantly.
Evaporator Icing / Freeze-Up
Symptom
Excessive noise during operation, such as rattling, buzzing, or grinding sounds.
Abnormal Noise / Vibration
Symptom
Front display and buttons work, but the remote control does not operate the unit.
Remote Control / IR Receiver Failure
Symptom
Indoor blower does not run, but the compressor and condenser fan operate; coil may freeze.
Indoor Blower Not Running
Symptom
Musty or moldy odor coming from the air conditioner when it runs.
Odor / Biological Growth in Unit
Symptom
Unit blows warm air when set to COOL mode; compressor appears to run but no cold air is produced.
Loss of Refrigerant / Refrigeration Circuit Failure
Symptom
Unit does not power on at all; display is blank and no response from buttons or remote.
No Power / Dead Unit
Symptom
Unit does not respond to timer settings; turns on or off at incorrect times or ignores schedule.
Timer / Clock Function Failure
Symptom
Unit frequently trips the household circuit breaker or blows fuses when starting or during operation.
Overcurrent / Short Circuit
Symptom
Unit in DRY (dehumidify) mode produces very little water or does not seem to dehumidify effectively.
Poor Dehumidification Performance
Symptom
Unit powers on but compressor never starts; only the fan runs and no cooling occurs.
Compressor Not Starting
Symptom
Unit switches itself from COOL to FAN or turns off cooling unexpectedly without any error code.
Protective Shutdown / Overheat or Freeze Protection Without Display Code
Symptom
Unit turns on and off frequently (short cycling), running only for a few minutes at a time.
Short Cycling
Symptom
Unit vibrates excessively, causing the cabinet or window frame to shake.
Excessive Vibration
Symptom
Water leaking from the bottom or sides of the unit onto the floor.
Water Leakage / Drainage Failure
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
Unit stops cooling and displays E1 on the control panel; buttons may still respond but compressor will not start.
|
Room Temperature Sensor (Thermistor) Fault | View Details |
| E2 |
Display shows E2 and the unit may run the fan but not cool properly; temperature setting may not respond correctly.
|
Evaporator Coil Temperature Sensor Fault | View Details |
| E3 |
Unit displays E3 and may shut down cooling; fan may continue to run intermittently.
|
Condenser Coil Temperature Sensor Fault | View Details |
| E4 |
Display shows E4 and the unit stops cooling; may beep and shut down after a short run time.
|
High-Temperature / Overload Protection or Defrost Sensor Error | View Details |
| E5 |
Unit displays E5 and may stop cooling or shut down shortly after starting.
|
Water Tank Full / Condensate Overflow Protection Fault | View Details |
| E6 |
Display shows E6 and the unit may not respond to some commands or may shut down unexpectedly.
|
Communication Error Between Display Board and Main Control Board | View Details |
| E7 |
Unit shows E7 and may not start cooling; some modes may be disabled.
|
Mode Control or EEPROM Configuration Error | View Details |
| E8 |
Display shows E8 and the unit may shut down or run only the fan; compressor does not engage.
|
Overload / Overcurrent Protection or Fan Motor Feedback Error | View Details |
| E9 |
Unit displays E9 and may not start or may shut down unexpectedly; sometimes associated with power interruptions.
|
EEPROM / Internal Memory Error | View Details |
| F1 |
Display shows F1 and the unit may not cool or may run erratically.
|
Indoor Ambient Temperature Sensor Fault | View Details |
| F2 |
Display shows F2 and the unit may shut down or fail to start cooling.
|
Evaporator Freeze Protection Sensor Fault | View Details |
| F3 |
Display shows F3 and the unit may run only in fan mode or shut down cooling quickly.
|
Condenser Overheat Sensor Fault | View Details |
| H1 |
Display shows H1 and the unit may run in a defrost-like mode or limit cooling.
|
Low-Temperature / Defrost Protection Active | View Details |
| H3 |
Display shows H3 and the compressor does not start or shuts off quickly.
|
Compressor Overload Protection | View Details |
| H5 |
Display shows H5 and the unit may not start or may shut down unexpectedly.
|
Overcurrent Protection / IPM Protection | View Details |
| H6 |
Display shows H6 and the indoor fan does not run or runs intermittently.
|
Indoor Blower Motor Fault | View Details |
| H8 |
Display shows H8 and the unit stops cooling; often associated with high ambient temperatures.
|
High-Pressure Protection / Overload Trip | View Details |
| P1 |
Display shows P1 and the unit stops cooling; often accompanied by a water full indicator.
|
Internal Condensate Tank Full Protection | View Details |
| P2 |
Display shows P2 and the unit may stop cooling or switch to fan mode.
|
Secondary Water Level or Pump Protection Fault | View Details |
| – |
Air conditioner runs but does not cool the room effectively; air from the front is only slightly cool or room temperature.
|
Insufficient Cooling Performance | View Details |
| – |
Burning or electrical smell when the unit is operating.
|
Overheating Electrical Component | View Details |
| – |
Buttons on the control panel do not respond or respond intermittently, but the display is lit.
|
Keypad / User Interface Failure | View Details |
| – |
Condenser fan at the rear does not spin, but the compressor runs and the unit overheats or shuts down.
|
Condenser Fan Not Running | View Details |
| – |
Display shows incorrect room temperature compared to an accurate thermometer; cooling performance seems mismatched to setpoint.
|
Inaccurate Temperature Sensing / Calibration Drift | View Details |
| – |
Evaporator coil freezes over with ice, and airflow from the front decreases significantly.
|
Evaporator Icing / Freeze-Up | View Details |
| – |
Excessive noise during operation, such as rattling, buzzing, or grinding sounds.
|
Abnormal Noise / Vibration | View Details |
| – |
Front display and buttons work, but the remote control does not operate the unit.
|
Remote Control / IR Receiver Failure | View Details |
| – |
Indoor blower does not run, but the compressor and condenser fan operate; coil may freeze.
|
Indoor Blower Not Running | View Details |
| – |
Musty or moldy odor coming from the air conditioner when it runs.
|
Odor / Biological Growth in Unit | View Details |
| – |
Unit blows warm air when set to COOL mode; compressor appears to run but no cold air is produced.
|
Loss of Refrigerant / Refrigeration Circuit Failure | View Details |
| – |
Unit does not power on at all; display is blank and no response from buttons or remote.
|
No Power / Dead Unit | View Details |
| – |
Unit does not respond to timer settings; turns on or off at incorrect times or ignores schedule.
|
Timer / Clock Function Failure | View Details |
| – |
Unit frequently trips the household circuit breaker or blows fuses when starting or during operation.
|
Overcurrent / Short Circuit | View Details |
| – |
Unit in DRY (dehumidify) mode produces very little water or does not seem to dehumidify effectively.
|
Poor Dehumidification Performance | View Details |
| – |
Unit powers on but compressor never starts; only the fan runs and no cooling occurs.
|
Compressor Not Starting | View Details |
| – |
Unit switches itself from COOL to FAN or turns off cooling unexpectedly without any error code.
|
Protective Shutdown / Overheat or Freeze Protection Without Display Code | View Details |
| – |
Unit turns on and off frequently (short cycling), running only for a few minutes at a time.
|
Short Cycling | View Details |
| – |
Unit vibrates excessively, causing the cabinet or window frame to shake.
|
Excessive Vibration | View Details |
| – |
Water leaking from the bottom or sides of the unit onto the floor.
|
Water Leakage / Drainage Failure | View Details |
No matching codes found
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