Whirlpool 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
Whirlpool air conditioner displays CF after a certain number of operating hours but continues to run.
Filter Clean Reminder
E1
Whirlpool window or portable air conditioner displays E1 and stops cooling or controls become unresponsive.
Indoor Ambient Temperature Sensor Fault
E2
Whirlpool air conditioner shows E2 and may shut down cooling or run erratically.
Evaporator Coil Temperature Sensor Fault
E3
Whirlpool air conditioner displays E3 and may stop cooling or cycle off prematurely.
Outdoor (Condenser) Temperature Sensor Fault
E4
Whirlpool portable or split-type air conditioner shows E4 and may stop cooling or enter protection mode.
High-Temperature / Defrost Protection or Overload Protection
E5
Whirlpool air conditioner displays E5 and may shut down or fail to start cooling.
Overcurrent / Voltage Protection or Compressor Overload
E6
Whirlpool split or portable air conditioner shows E6 and may not respond to commands or may not communicate between indoor and outdoor sections.
Communication Error Between Indoor and Outdoor PCB
E7
Whirlpool split air conditioner displays E7 and may not run the indoor fan or may shut down.
Indoor Fan Motor Fault
E8
Whirlpool air conditioner shows E8 and may shut down or run only briefly before stopping.
Overload / High-Temperature Protection (Indoor or Outdoor)
E9
Whirlpool portable air conditioner displays E9 and may stop operating.
Full Condensate Tank / Water Level Error
F0
Whirlpool portable air conditioner shows F0 and may not cool properly.
Low Refrigerant / Refrigeration System Fault (Generic Protection Code)
F1
Whirlpool air conditioner displays F1 and may not respond to temperature changes correctly.
Indoor Ambient Sensor Out of Range
F2
Whirlpool air conditioner shows F2 and may shut down or run erratically.
Evaporator Sensor Out of Range / Freeze Protection Fault
F3
Whirlpool air conditioner displays F3 and may not defrost or may shut down in heating mode (for heat pump models).
Outdoor Coil Sensor / Defrost Sensor Fault
F4
Whirlpool air conditioner shows F4 and may not operate the outdoor fan correctly.
Outdoor Fan Motor Fault
F5
Whirlpool air conditioner displays F5 and may not start the compressor.
Compressor Temperature Sensor / Overheat Fault
H1
Whirlpool heat pump air conditioner shows H1 and may run a defrost cycle or stop heating temporarily.
Defrost Mode Active / Low Outdoor Coil Temperature
H3
Whirlpool air conditioner displays H3 and shuts down heating or cooling.
Compressor Overload Protection / High-Pressure Protection
H6
Whirlpool split air conditioner shows H6 and the indoor fan does not run or runs erratically.
Indoor Fan Motor Hall Sensor / Feedback Fault
P1
Whirlpool portable air conditioner displays P1 and stops cooling.
Condensate Tank Full / Bottom Tray Full
P2
Whirlpool portable air conditioner shows P2 and may stop cooling or dehumidifying.
High Condensate Level / Pump Protection (on pump-equipped models)
Symptom
Air conditioner does not turn on at all; display is blank and no sounds are heard.
No Power / Dead Unit
Symptom
Air conditioner runs but does not cool the room effectively; air from the front grille is only slightly cooler than room temperature.
Reduced Cooling Capacity / Poor Heat Transfer
Symptom
Excessive water dripping or spraying from the back of a window or through-the-wall unit outdoors.
Excessive Condensate Discharge
Symptom
Remote control does not operate the air conditioner or only works at very close range.
Remote Control / IR Receiver Communication Issue
Symptom
Unit blows warm air when set to COOL mode, even though the compressor appears to run.
Loss of Refrigerant Charge / Heat Transfer Failure
Symptom
Unit display and buttons do not respond, but the outlet has power.
Control Panel / Keypad Failure
Symptom
Unit emits a burning or electrical smell during operation.
Overheating Electrical Component
Symptom
Unit emits a musty or moldy odor when it starts or runs.
Biological Growth in Evaporator and Drain System
Symptom
Unit ices up; evaporator coil becomes covered in ice and airflow drops significantly.
Evaporator Coil Freeze-Up
Symptom
Unit leaks water inside the room from the front or bottom of the cabinet.
Indoor Water Leakage / Drainage Failure
Symptom
Unit makes loud rattling, buzzing, or grinding noises during operation.
Mechanical Noise / Vibration Fault
Symptom
Unit powers on but compressor does not start; only the fan runs and air is not cold.
Compressor Start Failure
Symptom
Unit trips the circuit breaker or blows a fuse when starting or shortly after.
Overcurrent / Short Circuit
Symptom
Unit turns on and off frequently (short cycling), running only a few minutes at a time.
Short Cycling / Improper Thermostat Operation
Symptom
Unit vibrates excessively and may rattle the window frame or wall.
Excessive Vibration / Poor Mounting
Symptom
Unit's fan does not run, but the compressor appears to start; coil may freeze or unit may shut down.
Indoor Fan Failure
Symptom
Unit's fan runs continuously even when the set temperature is reached; compressor cycles normally.
Fan Auto/On Setting or Fan Control Logic Issue
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| CF |
Whirlpool air conditioner displays CF after a certain number of operating hours but continues to run.
|
Filter Clean Reminder | View Details |
| E1 |
Whirlpool window or portable air conditioner displays E1 and stops cooling or controls become unresponsive.
|
Indoor Ambient Temperature Sensor Fault | View Details |
| E2 |
Whirlpool air conditioner shows E2 and may shut down cooling or run erratically.
|
Evaporator Coil Temperature Sensor Fault | View Details |
| E3 |
Whirlpool air conditioner displays E3 and may stop cooling or cycle off prematurely.
|
Outdoor (Condenser) Temperature Sensor Fault | View Details |
| E4 |
Whirlpool portable or split-type air conditioner shows E4 and may stop cooling or enter protection mode.
|
High-Temperature / Defrost Protection or Overload Protection | View Details |
| E5 |
Whirlpool air conditioner displays E5 and may shut down or fail to start cooling.
|
Overcurrent / Voltage Protection or Compressor Overload | View Details |
| E6 |
Whirlpool split or portable air conditioner shows E6 and may not respond to commands or may not communicate between indoor and outdoor sections.
|
Communication Error Between Indoor and Outdoor PCB | View Details |
| E7 |
Whirlpool split air conditioner displays E7 and may not run the indoor fan or may shut down.
|
Indoor Fan Motor Fault | View Details |
| E8 |
Whirlpool air conditioner shows E8 and may shut down or run only briefly before stopping.
|
Overload / High-Temperature Protection (Indoor or Outdoor) | View Details |
| E9 |
Whirlpool portable air conditioner displays E9 and may stop operating.
|
Full Condensate Tank / Water Level Error | View Details |
| F0 |
Whirlpool portable air conditioner shows F0 and may not cool properly.
|
Low Refrigerant / Refrigeration System Fault (Generic Protection Code) | View Details |
| F1 |
Whirlpool air conditioner displays F1 and may not respond to temperature changes correctly.
|
Indoor Ambient Sensor Out of Range | View Details |
| F2 |
Whirlpool air conditioner shows F2 and may shut down or run erratically.
|
Evaporator Sensor Out of Range / Freeze Protection Fault | View Details |
| F3 |
Whirlpool air conditioner displays F3 and may not defrost or may shut down in heating mode (for heat pump models).
|
Outdoor Coil Sensor / Defrost Sensor Fault | View Details |
| F4 |
Whirlpool air conditioner shows F4 and may not operate the outdoor fan correctly.
|
Outdoor Fan Motor Fault | View Details |
| F5 |
Whirlpool air conditioner displays F5 and may not start the compressor.
|
Compressor Temperature Sensor / Overheat Fault | View Details |
| H1 |
Whirlpool heat pump air conditioner shows H1 and may run a defrost cycle or stop heating temporarily.
|
Defrost Mode Active / Low Outdoor Coil Temperature | View Details |
| H3 |
Whirlpool air conditioner displays H3 and shuts down heating or cooling.
|
Compressor Overload Protection / High-Pressure Protection | View Details |
| H6 |
Whirlpool split air conditioner shows H6 and the indoor fan does not run or runs erratically.
|
Indoor Fan Motor Hall Sensor / Feedback Fault | View Details |
| P1 |
Whirlpool portable air conditioner displays P1 and stops cooling.
|
Condensate Tank Full / Bottom Tray Full | View Details |
| P2 |
Whirlpool portable air conditioner shows P2 and may stop cooling or dehumidifying.
|
High Condensate Level / Pump Protection (on pump-equipped models) | View Details |
| – |
Air conditioner does not turn on at all; display is blank and no sounds are heard.
|
No Power / Dead Unit | View Details |
| – |
Air conditioner runs but does not cool the room effectively; air from the front grille is only slightly cooler than room temperature.
|
Reduced Cooling Capacity / Poor Heat Transfer | View Details |
| – |
Excessive water dripping or spraying from the back of a window or through-the-wall unit outdoors.
|
Excessive Condensate Discharge | View Details |
| – |
Remote control does not operate the air conditioner or only works at very close range.
|
Remote Control / IR Receiver Communication Issue | View Details |
| – |
Unit blows warm air when set to COOL mode, even though the compressor appears to run.
|
Loss of Refrigerant Charge / Heat Transfer Failure | View Details |
| – |
Unit display and buttons do not respond, but the outlet has power.
|
Control Panel / Keypad Failure | View Details |
| – |
Unit emits a burning or electrical smell during operation.
|
Overheating Electrical Component | View Details |
| – |
Unit emits a musty or moldy odor when it starts or runs.
|
Biological Growth in Evaporator and Drain System | View Details |
| – |
Unit ices up; evaporator coil becomes covered in ice and airflow drops significantly.
|
Evaporator Coil Freeze-Up | View Details |
| – |
Unit leaks water inside the room from the front or bottom of the cabinet.
|
Indoor Water Leakage / Drainage Failure | View Details |
| – |
Unit makes loud rattling, buzzing, or grinding noises during operation.
|
Mechanical Noise / Vibration Fault | View Details |
| – |
Unit powers on but compressor does not start; only the fan runs and air is not cold.
|
Compressor Start Failure | View Details |
| – |
Unit trips the circuit breaker or blows a fuse when starting or shortly after.
|
Overcurrent / Short Circuit | View Details |
| – |
Unit turns on and off frequently (short cycling), running only a few minutes at a time.
|
Short Cycling / Improper Thermostat Operation | View Details |
| – |
Unit vibrates excessively and may rattle the window frame or wall.
|
Excessive Vibration / Poor Mounting | View Details |
| – |
Unit's fan does not run, but the compressor appears to start; coil may freeze or unit may shut down.
|
Indoor Fan Failure | View Details |
| – |
Unit's fan runs continuously even when the set temperature is reached; compressor cycles normally.
|
Fan Auto/On Setting or Fan Control Logic Issue | View Details |
No matching codes found
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