Kelvinator Air Conditioners Error Codes

E1

Kelvinator split AC indoor unit displays E1 and stops cooling intermittently.

Indoor Room Temperature Sensor (Thermistor) Fault

E2

Kelvinator split AC shows E2 and the indoor coil ices up or unit stops cooling.

Indoor Evaporator Coil Temperature Sensor Fault

E3

Kelvinator split AC displays E3 and outdoor unit does not start or stops shortly after starting.

Outdoor Unit Communication Fault

E4

Kelvinator split AC shows E4 and stops cooling or heating; sometimes runs briefly then shuts down.

High-Pressure Protection / Overload Protection

E5

Kelvinator split AC displays E5 and does not cool; compressor may not start or stops quickly.

Overcurrent / Compressor Protection Fault

E6

Kelvinator split AC shows E6 and the outdoor unit does not respond to indoor commands.

Indoor–Outdoor Communication Error (Alternate Code)

E7

Kelvinator split AC displays E7 and fails to start in cooling or heating mode.

Mode Conflict / Indoor Fan or Louver Motor Fault (model-dependent)

E8

Kelvinator split AC shows E8 and stops cooling; indoor fan may continue to run.

Indoor Fan Motor Fault / Overload

E9

Kelvinator split AC displays E9 and may shut down or show abnormal temperature readings.

EEPROM / Memory Error on Indoor PCB

F0

Kelvinator inverter split AC shows F0 and does not cool properly; compressor may not start.

Low Refrigerant / Underload Protection (model-dependent)

F1

Kelvinator inverter split AC displays F1 and stops or fails to start cooling.

Indoor Ambient Sensor Fault (Inverter Series)

F2

Kelvinator inverter split AC shows F2 and may shut down during operation.

Evaporator Coil Sensor Fault (Inverter Series)

F3

Kelvinator inverter split AC displays F3 and may stop heating or cooling.

Outdoor Ambient Temperature Sensor Fault

F4

Kelvinator inverter split AC shows F4 and outdoor unit may not run correctly.

Outdoor Condenser Coil Temperature Sensor Fault

F5

Kelvinator inverter split AC displays F5 and may limit compressor speed or shut down.

Outdoor Unit Overload / Overheating Protection

F6

Kelvinator inverter split AC shows F6 and cooling capacity is reduced.

Indoor Fan Speed Feedback Error

F7

Kelvinator inverter split AC displays F7 and may not respond to remote commands properly.

Indoor PCB / Display Panel Communication Error

F8

Kelvinator inverter split AC shows F8 and may shut down during operation, especially in heating mode.

Discharge Pipe Temperature Sensor Fault

F9

Kelvinator inverter split AC displays F9 and may not operate in certain modes.

Indoor Coil Frost Protection / Sensor Calibration Error

H1

Kelvinator split AC shows H1 during heating mode and outdoor unit may defrost frequently.

Defrost Mode Indication / Defrost Sensor Issue

H3

Kelvinator inverter split AC displays H3 and shuts down to protect the compressor.

Compressor Overload Protection

H5

Kelvinator inverter split AC shows H5 and does not start the outdoor unit.

IPM (Intelligent Power Module) / Inverter Module Protection

H6

Kelvinator inverter split AC displays H6 and indoor fan may not run.

Indoor Fan Motor Lock / Feedback Error

P0

Kelvinator inverter split AC shows P0 and may limit compressor operation.

DC Bus Voltage Protection

P1

Kelvinator inverter split AC displays P1 and may stop cooling.

Indoor Unit Voltage / Power Supply Protection

P2

Kelvinator inverter split AC shows P2 and may stop during heavy use.

Compressor Temperature Protection

P4

Kelvinator inverter split AC displays P4 and may not start the compressor.

Inverter Module Temperature Protection

Symptom

Kelvinator split AC cools but the room never reaches the set temperature.

Insufficient Cooling Capacity / Airflow or Sizing Issue

Symptom

Kelvinator split AC does not power on at all; no lights or display on indoor unit.

No Power / Indoor Power Supply Failure

Symptom

Kelvinator split AC emits a chemical or burning smell when first turned on.

Overheating Electrical Component or Contaminant on Coil

Symptom

Kelvinator split AC indoor unit blows air but the airflow is very weak even at high fan speed.

Restricted Indoor Airflow

Symptom

Kelvinator split AC indoor unit drips water from the front panel during very humid operation.

Condensation on Front Panel / Airflow Pattern Issue

Symptom

Kelvinator split AC indoor unit emits a musty or moldy smell when starting.

Biological Growth on Evaporator Coil and Drain Pan

Symptom

Kelvinator split AC indoor unit frequently turns on and off (short cycling).

Short Cycling / Control or Capacity Issue

Symptom

Kelvinator split AC indoor unit makes loud rattling or buzzing noises during operation.

Indoor Mechanical Vibration / Loose Components

Symptom

Kelvinator split AC indoor unit runs but the outdoor unit never starts.

Outdoor Unit Not Responding

Symptom

Kelvinator split AC indoor unit runs but there is no cooling; air from vents is at room temperature.

Loss of Refrigerant Charge / Low Cooling Capacity

Symptom

Kelvinator split AC leaks water from the indoor unit onto the wall or floor.

Clogged or Misaligned Condensate Drain System

Symptom

Kelvinator split AC outdoor unit is very noisy, with grinding or squealing sounds.

Outdoor Fan Motor or Bearing Failure

Symptom

Kelvinator split AC remote control does not operate the indoor unit.

Remote Control / IR Receiver Failure

Symptom

Kelvinator split AC trips the circuit breaker shortly after starting.

Electrical Overload or Short Circuit

Symptom

Kelvinator window AC (room AC) runs but does not cool effectively.

Window AC Low Cooling / Airflow or Refrigerant Issue

Symptom

Kelvinator window AC leaks water inside the room instead of outside.

Improper Drainage / Unit Not Tilted Correctly