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Aircon Error Codes: Kelvinator

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Kelvinator Air Conditioner Error Codes: Common Codes and What to Do About Them

Error codes appearing on your Kelvinator air conditioner are signs that your system needs some attention. For this page, we’ll cover the most common Kelvinator AC error codes and what you can safely check before calling a professional to help.

For quick technician assistance across Sydney and NSW, Air Care Solutions does air conditioning repairs for various air conditioner brands.

Safety Notes Before Troubleshooting Your Kelvinator AC

Before attempting any checks yourself:

Do not dismantle the AC completely, remove panels, or access internal wiring.
Do not attempt DIY electrical repairs.
If required, turn the AC off at the isolator and wait for a few minutes before restarting.
If you smell burning, hear unusual buzzing, see smoke, or the system keeps tripping the power, turn the AC off immediately and contact a licensed technician.

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Common Kelvinator AC Error Codes: A Guide for Homeowners

We’ve listed the most common Kelvinator error codes, included what each code means, its typical causes, and how you or a licensed technician will resolve the issue.

Note: There are Kelvinator error codes that behave differently depending on the unit model. If you don’t see your code listed here, a technician can confirm the exact cause using your models details

Error Code	What It Means	Common Causes	How to Fix / What a Technician Does
E1	The indoor fan isn’t operating correctly.	‣ Fan motor not running properly ‣ Faulty fan feedback signal ‣ Control board not receiving fan speed data	A technician will check the indoor fan motor wiring and the feedback signal. If the sensor or motor is faulty, it may need replacement.
E2	The indoor fan’s electrical signal is abnormal.	‣ Control board software issue ‣ Fault in the indoor PCB ‣ Electrical interference or power surge	The technician reloads or updates the main and EE control software. If unsuccessful, the indoor PCB may need replacement.
E3	The indoor coil temperature sensor isn’t reading correctly.	‣ Loose or disconnected sensor wiring ‣ Faulty coil temperature sensor ‣ Moisture or corrosion at the sensor	The technician checks the sensor connection and tests the coil sensor. If faulty, the sensor is replaced.
E4	The indoor room temperature sensor isn’t working properly.	‣ Disconnected or damaged ambient sensor ‣ Sensor reading incorrectly due to age or moisture	The indoor ambient sensor connection is checked. If readings are incorrect, the sensor is replaced.
E0	The outdoor unit’s control memory has a fault.	‣ Corrupted outdoor EEPROM data ‣ Power interruption during operation ‣ Outdoor PCB issue	The outdoor unit’s EEPROM software is re-uploaded by a technician. If unsuccessful, the outdoor PCB may need replacement.
E6	The indoor and outdoor units are not communicating properly.	‣ Signal cable disconnected or damaged ‣ Incorrect wiring between units ‣ Faulty indoor or outdoor PCB	A technician checks the communication wiring between the indoor and outdoor units and tests both control boards.
F1	The compressor is not starting correctly.	‣ Phase failure or incorrect wiring ‣ Power supply issues ‣ Compressor terminal connection fault	The technician inspects compressor wiring and phase sequence. Electrical connections are corrected and tested.
F3	The inverter power module in the outdoor unit has failed.	‣ Overheating of the inverter module ‣ Electrical surge ‣ Component failure within the outdoor PCB	The IPM module in the outdoor PCB is replaced by a licensed technician.
F6	The suction temperature sensor is not reading correctly.	‣ Loose or damaged sensor wiring ‣ Faulty suction temperature sensor	The technician checks the sensor connection and replaces the suction temperature sensor if required.
F8	The outdoor air temperature sensor is faulty.	‣ Disconnected sensor wiring ‣ Sensor damaged by weather exposure ‣ Age-related sensor failure	The outdoor ambient temperature sensor is tested and replaced if readings are incorrect.
P1	The system is drawing too much electrical current.	‣ High refrigerant pressure ‣ Outdoor fan not operating correctly ‣ Dirty or blocked condenser coil	The technician checks refrigerant pressure, cleans the condenser coil, and tests outdoor fan performance.
P5	The inverter module is overheating.	‣ Restricted airflow through outdoor unit ‣ Dirty condenser coil ‣ Outdoor fan motor issue ‣ Refrigerant imbalance	The outdoor unit is inspected, cleaned, and tested. Fan operation, refrigerant pressure, and inverter cooling are checked.

What Do the Kelvinator Error Codes Generally Mean?

Communication Errors (E1, E2, E6, E5, E0): These errors are usually linked to wiring, control boards, or power issues between indoor and outdoor units.
Fan and Airflow Errors (E1, E3, E4, F6, F8): Usually caused by blocked airflow, sensor malfunctions, or fan motor problems.
Compressor and Inverter Faults (F1, F3, P5): These error codes can indicate wiring issues, overcurrent, or module overheating.
Pressure and Electrical Protection (P1, P5): Codes like these are triggered by high refrigerant pressure, blocked coils, or restricted airflow.

General Troubleshooting Steps You Can Do Safely

Before contacting a licensed technician, here are some safety checks you can perform yourself and resolve a lot of minor issues:

1. Perform a power reset

Switch off the AC at the controller, and then turn off the isolator or breaker. Wait for 3-5 minutes before restarting the whole AC system.
2. Check the outdoor unit for obstructions

Remove boxes, leaves, debris, or storage near the condenser to ensure that airflow is not blocked.
3. Clean the air filters

Dirty filters trigger multiple fan and pressure-related error codes. Clean your air filters regularly to maintain airflow and system efficiency.
4. Monitor the system for water or drainage issues

Water pooling near vents, indoor leaks, and damp patches can be an indication of drainage problems. Turn off the AC and call a technician if these appear.
5. Controller Function

If the controller screen is frozen, unresponsive, or showing repeated faults, it may indicate a control board or software issue.

Quick Tip: If the error clears temporarily after these steps but comes back within 24-48 hours, it’s usually a sign of an underlying fault that needs professional attention.

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When Should You Call a Licensed Technician?

Some Kelvinator AC errors are signs of faults that need proper testing and repair. It may involve sensors, fans, compressor performance, or control boards.

Hire a licensed technician if:

The same error comes back right away after a power reset.
The system stops cooling or heating effectively.
The unit starts and stops frequently.
The breaker trips repeatedly.
You notice signs of refrigerant or compressor issues.
You hear unusual noises from the outdoor unit.

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Aircon Error Codes: Kelvinator

Kelvinator Air Conditioner Error Codes: Common Codes and What to Do About Them

Common Kelvinator AC Error Codes: A Guide for Homeowners

What Do the Kelvinator Error Codes Generally Mean?

General Troubleshooting Steps You Can Do Safely

1. Perform a power reset

2. Check the outdoor unit for obstructions

3. Clean the air filters

4. Monitor the system for water or drainage issues

5. Controller Function

When Should You Call a Licensed Technician?

The same error comes back right away after a power reset.

The system stops cooling or heating effectively.

The unit starts and stops frequently.

The breaker trips repeatedly.

You notice signs of refrigerant or compressor issues.

You hear unusual noises from the outdoor unit.

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