Panasonic Air Conditioning

An error code is displayed on the control panel's timer display LCD, indicating a specific fault or abnormality within the system. The OFF/ON LED will also blink.

The pressure switch has activated multiple times within a short period, indicating a potential issue with system pressure regulation. The system stops if this occurs 4 times in 20 minutes.

The outdoor compressor is rotating abnormally. This fault is triggered if it occurs 4 times within 20 minutes.

This error means the outdoor fan motor is locked or malfunctioning. It is reported after 2 occurrences within 30 minutes.

The outdoor unit's running current has exceeded a safe limit. The system will stop operation after multiple occurrences.

The compressor's internal temperature has exceeded the safety limit. The compressor will stop to prevent damage.

This indicates the power transistor (IPM) is overheating. This protection activates after 3 occurrences within 30 minutes.

The current to the IPM module has exceeded the set value multiple times. The system will stop operation.

This error indicates an issue within the refrigeration cycle. It occurs if the abnormality is detected 2 times within 20 minutes.

This code appears when there's an abnormality in switching between cooling and heating cycles. It is reported after 4 occurrences within 30 minutes.

The pressure switch is indicating an abnormality. Protection control activates after the condition is sustained for 1 minute.

This error is logged if low discharge superheat is detected once within 2550 minutes.

This error signifies an abnormality with the water outlet sensor 2. It triggers if the condition persists for 5 seconds.

This code indicates an issue with the outdoor air temperature sensor. It is displayed if the abnormality persists for 5 seconds.

This error relates to an abnormality with the indoor water inlet temperature sensor. It is shown if the issue continues for 5 seconds.

This error indicates an abnormality with the outdoor discharge pipe temperature sensor, lasting for 5 seconds.

The Power Factor Correction (PFC) control system is experiencing an abnormality. This fault occurs 4 times within 10 minutes.

This error signifies an abnormality with the outdoor heat exchanger temperature sensor. It appears if the issue persists for 5 seconds.

This code indicates an abnormality with the outdoor defrost sensor. It is displayed if the condition persists for 5 seconds.

This error relates to an abnormality with the indoor water outlet temperature sensor. It triggers if the issue continues for 5 seconds.

This error indicates an open circuit in the Outdoor Current Transformer.

This error indicates an abnormality with the outdoor EVA outlet temperature sensor. It appears if the issue persists for 5 seconds.

This code indicates an abnormality with the outdoor bypass outlet temperature sensor. It is displayed if the condition persists for 5 seconds.

This error signifies an overload protection in the cooling high-pressure system.

The unit has detected that there is no water flow. The flow switch acts as an overload protector and will shut down the unit if the water level is too low.

This code indicates that the system is operating normally and no errors or protection controls have been activated. It's a status indicator, not a fault.

This error means the capacity of the indoor and outdoor units do not match. It appears about 90 seconds after power supply is turned on.

This indicates an abnormality with the outdoor compressor temperature sensor. It is reported if the issue persists for 5 seconds.

This code signifies a malfunction with the water pump. The error is indicated if the abnormality persists for 10 seconds.

This error relates to an abnormality with the indoor refrigerant liquid temperature sensor. It is shown if the condition persists for 5 seconds.

This error indicates a problem with the service valve. It is logged if the issue persists for 5 minutes.

This code indicates an abnormality with the solar sensor. It is displayed if the condition persists for 5 seconds.

This error relates to an abnormality with the swimming pool sensor. It triggers if the issue continues for 5 seconds.

This code indicates an abnormality with the buffer tank sensor. It is displayed if the condition persists for 5 seconds.

This indicates an abnormality in compressor low pressure.

This error signifies an abnormality with the Zone 1 sensor. It is displayed if the condition persists for 5 seconds.

This code indicates an abnormality with the Zone 2 sensor. It is displayed if the condition persists for 5 seconds.

The system has detected a low water flow for a continuous period. The water pump and compressor will shut off permanently.

This code indicates a low pressure abnormality in the refrigerant. It triggers if the condition persists for 5 seconds.

This error signifies a high pressure abnormality in the refrigerant. It is reported if the condition persists for 5 seconds.

This error indicates a problem during the de-icing circulation process. It is logged if the issue persists for 10 seconds.

This code indicates an abnormality with the external thermistor 1. It is displayed if the condition persists for 5 seconds.

This code indicates an abnormality with the external thermistor 2. It is displayed if the condition persists for 5 seconds.

The overload protector (OLP) for the back-up heater has activated or is disconnected. Protection control activates after 60 seconds of detection.

This code indicates an abnormality with the tank sensor. It is displayed if the condition persists for 5 seconds.

This error indicates a communication problem between the indoor unit and the control panel.

This error means there is abnormal communication between the indoor and outdoor units. It is detected over 1 minute after operation starts.

The overload protector (OLP) for the tank heater has tripped or is disconnected. Protection control is activated after 60 seconds of detection.

The indoor and outdoor units are connected incorrectly. This requires verification of the supply voltage connection.

This error signifies an overload protection in the outdoor high-pressure system.

This code indicates that the indoor heat exchanger freeze prevention system has activated.

The OFF/ON control panel LED is blinking, signaling that the system has stopped due to an abnormality or protection control activation. An error code should be visible on the timer display.

The Operation LED is blinking, indicating that the system has detected an abnormality during operation. This signals a fault that requires diagnosis.