GE Appliances Air Conditioning

The EEPROM on the outdoor Printed Circuit Board (PCB) is unable to read or write data. This may be due to a faulty EEPROM chip or a loose connection.

There is an electrical failure with the sensor used to measure the outdoor coil temperature during the defrost cycle. This sensor connects to the PCB at Plug CN-14.

An electrical failure has occurred with the sensor measuring the temperature of the suction gas entering the compressor. This sensor connects to the PCB via two wires at Plug CN-14.

There is an electrical failure with the sensor that measures the outdoor air temperature. This sensor connects to the PCB via two wires at Plug CN-14.

An electrical failure has occurred with the sensor measuring the temperature of the compressor's hot gas discharge line. This sensor connects to the PCB via two wires at Plug CN-14.

The outdoor unit control board cannot communicate with the indoor unit control board. This can be caused by wiring issues or a faulty PCB.

This error code indicates the system may not have sufficient refrigerant. Recover and check the system charge.

The 4-way valve is not correctly directing hot gas to the appropriate coil. This prevents proper heating or cooling operation.

The compressor motor has desynchronized. This can be caused by overload, fluctuating load, an abnormal compressor current sensor circuit, or a missing inverter gate drive signal.

The Inverter Power Module (IPM) has failed or detected excessive current. This can be caused by various issues within the refrigeration circuit or power supply.

The indoor unit has experienced a thermal overload condition. This typically relates to airflow or operational issues within the indoor unit.

The indoor coil has frosted over. This is often caused by insufficient heat, low operating temperatures, or restricted airflow.

The Inverter Power Module (IPM) has experienced an thermal overload. This is usually due to overcharge, a plugged coil, or a sensor issue.

The driver module has detected a failure during compressor startup. This is often due to power supply issues, wiring problems, or problems with the power module or the compressor itself.

The compressor drive module's input current is too high, exceeding 32A for double fan models or 27A for single fan models. The error locks if it occurs 3 times in 1 hour.

A module reset has occurred, possibly due to power anomalies such as low line voltage conditions.

The circuit responsible for detecting current within the IPM is malfunctioning. This could be an IPM issue or a problem with the detection circuit itself.

These codes indicate a failure of a liquid or gas temperature sensor within the indoor unit's Electronic Expansion Valve (EEV) circuit. The specific sensor is identified by the code number.

This code indicates a potential failure of the IPM temperature sensor, which monitors heat generated by the IPM. It may also detect a momentary power failure.

An electrical failure has occurred with the sensor that measures the condensing temperature of the outdoor coil. This sensor connects to the PCB via two wires at Plug CN-14.

The Inverter Power Module (IPM) is not communicating with the main Printed Circuit Board (PCB). This often points to a wiring issue or a faulty board.

This error code indicates a failure of the liquid pipe temperature sensor for indoor unit E. This sensor is part of the EEV circuit.

This code indicates an electrical failure of the 'Toci' sensor, which is crucial for monitoring hot gas temperature changes through the 4-way valve. It connects to the PCB via two wires at Plug CN-7.

The high pressure switch circuit has been detected as open for 30 seconds after 3 minutes of compressor runtime. This error locks if it happens 3 times in 1 hour.

The low pressure switch has been detected as open for 60 seconds after 3 minutes of compressor runtime, or open for 30 seconds during standby. This error locks if it happens 3 times in 1 hour.

This error means the system has detected high pressure. It occurs when the minimum temperature of indoor or outdoor pipes is too low during cooling mode, or when specific outdoor temperatures are too low during heating mode.

This error indicates that the system has detected low pressure. It triggers when the minimum temperature of indoor or outdoor pipes is too low during cooling mode, or specific outdoor temperatures are too low during heating mode.

The IPM is protecting the compressor from overload. This can be due to low building power, restrictions, system issues, or incorrect refrigerant charge.

The operating voltage of the system is outside acceptable limits (too high or too low). Check the incoming power supply and related components.

Compressor discharge temperature has exceeded 115°C. The error clears if the temperature drops below 115°C within 3 minutes. It locks if it occurs 3 times in 1 hour.

The DC fan motor is damaged, not connected, or its related circuit is broken. The error locks if it occurs 3 times within 30 minutes.

The 'BP' display means the start-up system check has been bypassed. This allows the unit to enter standby mode immediately after installation or power-up, skipping the automated diagnostic tests.

The installed jumper cap model does not match the main board. This error is indicated by 'C4' on the ODU main board LED display.

The system is performing an initial check after installation or power-up. The 'CC' display indicates this diagnostic sequence is active. It will proceed to test heating and cooling modes based on ambient temperature.

This error indicates that the compressor's high pressure has exceeded a safe limit. The system will shut down to prevent damage. This is typically shown on the ODU main board LED display.

The low pressure switch has opened. The system will shut down the compressor. If the switch reopens within a set time, a power reset is required to restart.

The compressor discharge temperature has exceeded 239°F, causing the unit to stop for protection. This error is shown as 'E4' on the ODU main board LED display.

This error signifies a problem with the memory chip on the Outdoor Unit (ODU) main board. The ODU main board cannot function correctly, leading to system shutdown. This code is shown on the ODU main board LED.

This error signifies an issue with the condenser temperature sensor. The system detects that the sensor's reading is outside the normal range for too long, causing it to report an error and stop operation. The ODU main board LED will display this error.

An F3 error indicates a problem with the outdoor ambient temperature sensor. The system cannot get a valid reading from this sensor, which is necessary for proper operation. The ODU main board LED will show this error.

This error points to a malfunction in the discharge temperature sensor. The system is unable to get accurate temperature readings from this sensor, leading to a shutdown. The ODU main board LED will display this code.

An F6 error indicates that the outdoor unit (ODU) tube temperature sensor is not functioning correctly. The system cannot obtain valid temperature data, causing it to halt operation. This code appears on the ODU main board LED.

This indicates an overload condition. The system may have detected a current draw that is too high for its components, leading to a shutdown for protection. This status is shown on the ODU main board LED.

IPM protection error means the drive processor's supply voltage is low, or the IPM module is malfunctioning. The system will shut down. This is displayed on the ODU main board LED.

The main board has not received a signal from the outdoor fan within 30 seconds of initiating the fan run command. This indicates a problem with the outdoor fan. The ODU main board LED displays this error.

This error occurs when the processor cannot detect the compressor rotor position, or the running speed does not match the commanded speed. Compressor operation stops. This is shown on the ODU main board LED.

PFC protection indicates a malfunction due to low drive processor voltage. The system will shut down. This code is displayed on the ODU main board LED.

The inverter compressor failed to start up successfully. This may be due to wiring issues or problems with the compressor or its drive board. The ODU main control board's 7-segment LED will display 'PJ' for this error.

The system has detected that the outdoor ambient temperature is too low for proper operation. This may trigger a lockout or error code.

The drive board chip is repeatedly resetting upon startup. This indicates a protection mechanism has been triggered due to a potential issue with the drive board's power supply or connection. The ODU main board LED will show this error.

This error means the compressor's instantaneous current has exceeded the set protection value, causing the system to shut down. This can be due to high load or wiring issues. The ODU main board LED displays this code.

Communication between the master control board and the driver board has been interrupted for 30 seconds. This fault will cause the system to shut down for protection. The ODU main board LED will display this error.

The input AC current has exceeded the set protection value, causing the system to shut down. This can be due to system load, grid voltage issues, or drive board problems. This code is shown on the ODU main board LED.

The system has detected that the busbar voltage is too high and has shut down to protect itself. This is indicated by 'PH' on the ODU main board LED display.

The busbar voltage is lower than the set value for low voltage protection while the compressor is running. This causes the system to shut down. The ODU main board LED will show this error.

The 'PS' display indicates that the air conditioner has successfully completed its start-up system check. All tests have passed, and the unit is now ready for normal operation.

When charging begins, the system did not reach the required busbar voltage within the set time, indicating a charge loop error. The system has shut down for protection. This is shown as 'PU' on the ODU main board LED display.

This error indicates a fault in the current detection or current sensor circuit. After power charging, the offset voltage average has exceeded a threshold, causing the system to shut down. The ODU main board LED displays this error.

The pressure sensor's detected value is outside the acceptable range for over 30 seconds. This indicates an issue with the high pressure sensor or its connection. The error is shown as 'e1' on the ODU main board LED display.

The drive board cannot detect or correctly read data from the memory chip, even when power is connected. This is shown as 'ee' on the ODU main board LED display.

This display indicates that the air conditioner is running a heating mode test as part of the initial start-up system check. This occurs when the outdoor ambient temperature is between -20°C and 10°C.

This display signifies that the air conditioner is running a cooling mode test during the initial start-up system check. This is observed when the outdoor ambient temperature is between -10°C and 24°C.