When your Kaysun air conditioner starts acting up, it might be trying to communicate with you through its error codes. These codes are a form of self-diagnosis that modern appliances use to inform users and technicians about the type of problem they are experiencing. Understanding what each code means can be key to solving minor issues on your own or knowing when it’s time to call in a professional.
In this article, we present a complete table of error codes for Kaysun air conditioners. Before we dive into it, let’s clarify some concepts that might be new or confusing to you.
EEPROM: This is a type of memory used in electronic devices to store small amounts of data that must be saved when the device is turned off. An “EEPROM Failure” indicates a problem with this memory.
Temperature Sensor: This sensor measures the air temperature in different parts of the air conditioner to ensure it operates correctly. If there is a “short circuit” or it “does not work,” the device will not be able to regulate the temperature properly.
Fan Motor Speed: Refers to how fast the fan within your air conditioner is spinning. If the “speed is out of control,” it could mean the fan is spinning too fast or too slow, affecting the appliance’s efficiency.
Now that we’ve clarified these terms, here is the table of error codes for Kaysun air conditioners:
| Error | Description | Solution |
|---|---|---|
| E1 | Communication failure between the indoor and outdoor unit. | Contact technical service. |
| E2 | The temperature sensor does not work or there is a short circuit. | Contact technical service. |
| E3 | The temperature sensor does not work or there is a short circuit. | Contact technical service. |
| E4 | The temperature sensor does not work or there is a short circuit. | Contact technical service. |
| E7 | EEPROM failure. | Contact technical service. |
| E8 | Indoor fan motor speed is out of control. | Contact technical service. |
| Ed | Malfunction of the outdoor temperature sensor. | Turn off the unit, clean the air filter, and then restart the unit. If this does not solve the problem, contact technical service. |
| Ed | Protection of the outdoor unit. | Turn off the unit, clean the air filter, and then restart the unit. If this does not solve the problem, contact technical service. |
| The air conditioner does not cool or does not provide enough heat | The temperature setting is too high or too low. | Set a more comfortable temperature. |
| The air conditioner does not cool or does not provide enough heat | The air intake or outlet of the outdoor unit is blocked. | Clean the block first, and then start operating. |
| The air conditioner does not work | Power failure | Wait for the power to be restored. |
| The “TIMER ON” indicator disappears after a while. | Once the specified time has elapsed, the unit will automatically activate. and the corresponding indicator will turn off. | Check if the timer has been activated when “TIMER ON” appears on the display. |
| The remote control signal is not transmitted even when pressing the on/off button | No power supply. | Check if you are correctly aiming the signal transmitter at the indoor unit’s infrared receiver when pressing the on/off button. |
| The unit does not heat enough | The outdoor temperature is below 7o C. | Use a heating device. |
| The unit does not cool enough | The exchanger of the outdoor and indoor unit is dirty. | Clean the heat exchanger. |
| The unit does not turn on | Cut in the power supply. | Wait for the power supply to return. |
| The unit turns on or off frequently | There is too much refrigerant, or not enough. | Check for leaks and recharge the necessary amount of refrigerant gas. |
| The fan speed cannot be modified | When “AUTO” mode is activated, the fan speed is automatically regulated. | Check if the mode indicated on the display is “AUTO”. |
| The information on the display disappears after a while | The unit will stop after the specified time has elapsed. | Check if the timer operation has finished, “TIMER OFF” will appear on the display. |
| The temperature indicator does not appear on the display | The temperature cannot be set in “FAN ONLY” mode. | Check if the mode indicated on the display is “FAN ONLY”. |
| No sound signals are received from the indoor unit even when pressing the on/off button | Directly transmit the signal by correctly aiming the transmitter at the indoor unit’s infrared receiver by pressing the on/off button twice repeatedly. | Check if you are correctly aiming the signal transmitter at the indoor unit’s infrared receiver when pressing the on/off button. |
| P0 | Low-temperature protection of the evaporator under cooling and dehumidification mode. | Turn off the unit, clean the air filter, and then restart the unit. If this does not solve the problem, contact technical service. |
| P1 | Anti-cold air or defrost activation in heating mode. | When a sufficiently high temperature is reached, the function automatically stops. |
| P8 | Overcurrent protection. | Contact technical service. |
| Air comes out of the unit but does not cool | The temperature has not been set correctly. | Set the temperature correctly. |
Our Advice
Before calling technical service, we recommend checking this table of error codes. Many times, problems can be solved with simple steps that you can perform yourself, such as cleaning the air filter or restarting the unit. However, if the problem persists after trying the suggested solutions, do not hesitate to contact a professional. Remember, keeping your air conditioner in good condition not only ensures your comfort but also the efficiency and longevity of the device.
Error codes in Kaysun air conditioning
Troubleshoot error code “It comes out of unity but does not cool.” in Kaysun air-conditioning
Troubleshoot error code “P8” in Kaysun air-conditioning
