Hotpoint 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
Display shows CF after extended use; unit may still operate normally.
Filter Cleaning Reminder
E1
Unit stops cooling and displays E1 on the control panel; fan may still run but compressor cycles off quickly.
Room Temperature Sensor (Ambient Thermistor) Fault
E2
Unit displays E2 and may shut down cooling; fan may continue to run intermittently.
Evaporator Coil Temperature Sensor Fault
E3
Display shows E3 and compressor may not start or may shut off quickly; unit may blow room-temperature air.
Condenser Coil Temperature Sensor Fault
E4
Unit shows E4 and may stop cooling; sometimes accompanied by ice buildup on the evaporator or frequent defrost cycles.
Defrost / Anti-Frost Protection Fault or High Evaporator Temperature
E5
Display shows E5; compressor may not start or may shut down shortly after starting; fan may still run.
Overcurrent or Overload Protection Trip
E6
Unit displays E6 and may not respond correctly to remote control commands; sometimes buttons on the panel still work.
Communication Error Between Display Panel and Main Control Board
E7
E7 appears on the display; unit may not switch modes correctly or may shut down unexpectedly.
Mode Control or Indoor Fan Feedback Error
E8
Unit shows E8 and may shut down or limit operation; sometimes occurs during very hot conditions.
High-Temperature Protection / Overheating
E9
E9 appears on the display; unit may shut down or refuse to start cooling.
EEPROM / Memory Error on Main Control Board
F0
Display shows F0; unit may not cool properly or may shut down intermittently.
Refrigerant System Protection / Low Refrigerant or Sensor Error
F1
F1 appears on the display; unit may not respond to temperature changes or may run continuously.
Indoor Ambient Temperature Sensor Out of Range
F2
F2 is displayed; unit may shut down or fail to start cooling.
Evaporator Temperature Sensor Out of Range
F3
F3 appears; unit may run fan but not cool effectively.
Condenser Temperature Sensor Out of Range
F4
F4 is displayed; unit may not start or may shut down unexpectedly.
Indoor Fan Motor Fault
F5
F5 appears; unit may not exhaust hot air properly (common on portable models with hose).
Exhaust Temperature or Exhaust Sensor Fault
H1
Display shows H1; unit may run fan only or limit compressor operation.
Low Ambient Temperature Protection
H3
H3 appears; unit may shut down compressor and run fan only.
Compressor Overload / Overheat Protection
H4
H4 is displayed; unit may not respond to commands or may lock out compressor operation.
Inverter / Compressor Drive Communication Fault (on inverter models)
LO
Display shows LO instead of a temperature; unit may not start cooling.
Low Temperature Indication / Sensor Reading Below Range
P1
Portable Hotpoint air conditioner stops and displays P1; unit may beep and refuse to start cooling.
Full Condensate Tank / Water Level Protection
P2
Portable unit displays P2 and may stop cooling; fan may continue to run.
High Condensate Level in Cooling Mode (Secondary Protection)
Symptom
Air conditioner runs but does not cool the room effectively; air from the vents is only slightly cool or room-temperature.
Poor Cooling Performance
Symptom
Burning or electrical smell from the unit during operation.
Overheating Electrical Component
Symptom
Display and lights work, but none of the buttons respond or the unit does not change modes/settings.
Keypad / Control Panel Failure
Symptom
Excessive water dripping from the back of the unit, sometimes splashing on the wall or ground.
Excess Condensate Discharge
Symptom
Musty or moldy smell from the air conditioner when it starts or runs.
Odor / Biological Growth in Unit
Symptom
Remote control does not operate the unit, but the front panel buttons work.
Remote Control / IR Receiver Issue
Symptom
Unit blows warm air in COOL mode and cold air in HEAT mode (for heat pump models), or modes seem reversed.
Reversing Valve / Mode Control Fault (Heat Pump Models)
Symptom
Unit does not turn on at all; no lights or display, no fan noise.
No Power / Dead Unit
Symptom
Unit frequently trips the household circuit breaker or blows fuses when starting or running.
Overcurrent / Electrical Overload
Symptom
Unit ices up; visible ice on the evaporator coil or front grille, reduced airflow.
Evaporator Coil Icing
Symptom
Unit makes loud rattling, buzzing, or grinding noises during operation.
Excessive Noise / Mechanical Vibration
Symptom
Unit powers on but compressor never starts; only the fan runs and air is not cold.
Compressor Not Starting
Symptom
Unit starts then shuts off after a few minutes, with no error code displayed.
Thermal Overload / Overheating Shutdown
Symptom
Unit turns on and off frequently (short cycling), cooling in very short bursts.
Short Cycling
Symptom
Unit vibrates excessively, causing the window frame or floor to shake.
Excessive Vibration
Symptom
Water leaking from the front or sides of the unit onto the floor.
Condensate Leakage
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| CF |
Display shows CF after extended use; unit may still operate normally.
|
Filter Cleaning Reminder | View Details |
| E1 |
Unit stops cooling and displays E1 on the control panel; fan may still run but compressor cycles off quickly.
|
Room Temperature Sensor (Ambient Thermistor) Fault | View Details |
| E2 |
Unit displays E2 and may shut down cooling; fan may continue to run intermittently.
|
Evaporator Coil Temperature Sensor Fault | View Details |
| E3 |
Display shows E3 and compressor may not start or may shut off quickly; unit may blow room-temperature air.
|
Condenser Coil Temperature Sensor Fault | View Details |
| E4 |
Unit shows E4 and may stop cooling; sometimes accompanied by ice buildup on the evaporator or frequent defrost cycles.
|
Defrost / Anti-Frost Protection Fault or High Evaporator Temperature | View Details |
| E5 |
Display shows E5; compressor may not start or may shut down shortly after starting; fan may still run.
|
Overcurrent or Overload Protection Trip | View Details |
| E6 |
Unit displays E6 and may not respond correctly to remote control commands; sometimes buttons on the panel still work.
|
Communication Error Between Display Panel and Main Control Board | View Details |
| E7 |
E7 appears on the display; unit may not switch modes correctly or may shut down unexpectedly.
|
Mode Control or Indoor Fan Feedback Error | View Details |
| E8 |
Unit shows E8 and may shut down or limit operation; sometimes occurs during very hot conditions.
|
High-Temperature Protection / Overheating | View Details |
| E9 |
E9 appears on the display; unit may shut down or refuse to start cooling.
|
EEPROM / Memory Error on Main Control Board | View Details |
| F0 |
Display shows F0; unit may not cool properly or may shut down intermittently.
|
Refrigerant System Protection / Low Refrigerant or Sensor Error | View Details |
| F1 |
F1 appears on the display; unit may not respond to temperature changes or may run continuously.
|
Indoor Ambient Temperature Sensor Out of Range | View Details |
| F2 |
F2 is displayed; unit may shut down or fail to start cooling.
|
Evaporator Temperature Sensor Out of Range | View Details |
| F3 |
F3 appears; unit may run fan but not cool effectively.
|
Condenser Temperature Sensor Out of Range | View Details |
| F4 |
F4 is displayed; unit may not start or may shut down unexpectedly.
|
Indoor Fan Motor Fault | View Details |
| F5 |
F5 appears; unit may not exhaust hot air properly (common on portable models with hose).
|
Exhaust Temperature or Exhaust Sensor Fault | View Details |
| H1 |
Display shows H1; unit may run fan only or limit compressor operation.
|
Low Ambient Temperature Protection | View Details |
| H3 |
H3 appears; unit may shut down compressor and run fan only.
|
Compressor Overload / Overheat Protection | View Details |
| H4 |
H4 is displayed; unit may not respond to commands or may lock out compressor operation.
|
Inverter / Compressor Drive Communication Fault (on inverter models) | View Details |
| LO |
Display shows LO instead of a temperature; unit may not start cooling.
|
Low Temperature Indication / Sensor Reading Below Range | View Details |
| P1 |
Portable Hotpoint air conditioner stops and displays P1; unit may beep and refuse to start cooling.
|
Full Condensate Tank / Water Level Protection | View Details |
| P2 |
Portable unit displays P2 and may stop cooling; fan may continue to run.
|
High Condensate Level in Cooling Mode (Secondary Protection) | View Details |
| – |
Air conditioner runs but does not cool the room effectively; air from the vents is only slightly cool or room-temperature.
|
Poor Cooling Performance | View Details |
| – |
Burning or electrical smell from the unit during operation.
|
Overheating Electrical Component | View Details |
| – |
Display and lights work, but none of the buttons respond or the unit does not change modes/settings.
|
Keypad / Control Panel Failure | View Details |
| – |
Excessive water dripping from the back of the unit, sometimes splashing on the wall or ground.
|
Excess Condensate Discharge | View Details |
| – |
Musty or moldy smell from the air conditioner when it starts or runs.
|
Odor / Biological Growth in Unit | View Details |
| – |
Remote control does not operate the unit, but the front panel buttons work.
|
Remote Control / IR Receiver Issue | View Details |
| – |
Unit blows warm air in COOL mode and cold air in HEAT mode (for heat pump models), or modes seem reversed.
|
Reversing Valve / Mode Control Fault (Heat Pump Models) | View Details |
| – |
Unit does not turn on at all; no lights or display, no fan noise.
|
No Power / Dead Unit | View Details |
| – |
Unit frequently trips the household circuit breaker or blows fuses when starting or running.
|
Overcurrent / Electrical Overload | View Details |
| – |
Unit ices up; visible ice on the evaporator coil or front grille, reduced airflow.
|
Evaporator Coil Icing | View Details |
| – |
Unit makes loud rattling, buzzing, or grinding noises during operation.
|
Excessive Noise / Mechanical Vibration | View Details |
| – |
Unit powers on but compressor never starts; only the fan runs and air is not cold.
|
Compressor Not Starting | View Details |
| – |
Unit starts then shuts off after a few minutes, with no error code displayed.
|
Thermal Overload / Overheating Shutdown | View Details |
| – |
Unit turns on and off frequently (short cycling), cooling in very short bursts.
|
Short Cycling | View Details |
| – |
Unit vibrates excessively, causing the window frame or floor to shake.
|
Excessive Vibration | View Details |
| – |
Water leaking from the front or sides of the unit onto the floor.
|
Condensate Leakage | View Details |
No matching codes found
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