Bosch air conditioners are known for their cooling efficiency, but some users have experienced delays in obtaining timely repairs. Reports highlight delays in addressing issues like compressor malfunctions or cooling inefficiencies. Timely service appointments are crucial, especially in hot and humid climates where air conditioners are essential for comfort. Users have emphasized the importance of quick and accurate servicing to ensure uninterrupted cooling during peak seasons.
E1: Communication Error
E1 indicates a communication problem between components of the air conditioner. This may require professional diagnosis to determine the exact cause and solution.
E2: High-Pressure Error
E2 suggests that the high-pressure safety switch has been triggered. Causes may include a refrigerant leak, clogged filters, or issues with the outdoor fan. Professional service may be needed.
E3: Low-Pressure Error
E3 indicates that the low-pressure safety switch has been activated. This can result from low refrigerant levels, a refrigerant leak, or problems with the expansion valve. Professional assistance is usually required.
E4: Temperature Sensor Error
E4 indicates a problem with the temperature sensor. The sensor may not be providing accurate readings, affecting the air conditioner’s performance. Check the sensor and its connections for issues, and if necessary, replace it.
E5: Outdoor Fan Error
E5 suggests an issue with the outdoor fan motor or its control circuit. A malfunctioning outdoor fan can disrupt heat dissipation and affect the air conditioner’s operation. Inspect the fan, motor, and control components for problems.
E6: Communication Error
E6 indicates another type of communication error between different components of the air conditioner. Professional diagnosis is typically required to identify the specific cause and solution.
E7: Indoor Fan Error
E7 points to a problem with the indoor fan motor or its control circuit. A malfunctioning indoor fan can disrupt air distribution and cooling. Inspect the fan, motor, and control components for issues.
E8: Temperature Sensor Error
E8 indicates a problem with a temperature sensor, possibly in the indoor unit. Similar to E4, this error may require sensor inspection and replacement if necessary.
E9: Water Leakage Error
E9 suggests that the air conditioner has detected water leakage. Check for any water leaks or condensation buildup in and around the unit. Address the source of the leak and ensure proper drainage.
E10: Communication Error
E10 is another communication error that may occur between different components of the air conditioner. Professional diagnosis is usually necessary to determine the exact cause.
E11: Refrigerant Overcharge
E11 indicates that there may be too much refrigerant in the system. This can lead to performance issues and may require professional service to adjust the refrigerant levels properly.
E12: Refrigerant Undercharge
E12 suggests that there may be insufficient refrigerant in the system. This can impact cooling efficiency and may require professional service to add refrigerant to the correct levels.
E13: Compressor Error
E13 indicates a problem with the compressor, a crucial component for cooling. Issues with the compressor can affect the air conditioner’s performance and may require professional diagnosis and repair.
E14: Power Supply Error
E14 suggests a problem with the power supply to the air conditioner. Check the electrical connections, circuit breakers, and voltage supply to ensure proper power delivery.
E15: Evaporator Coil Error
E15 points to an issue with the evaporator coil. Problems with the coil can hinder the cooling process. Inspect the coil and connections for issues that may require cleaning or repair.
E16: Condenser Coil Error
E16 indicates a problem with the condenser coil, which plays a critical role in releasing heat. Issues with the condenser coil can affect the air conditioner’s cooling efficiency. Inspect the coil and connections for potential problems.
E17: Refrigerant Flow Error
E17 suggests a problem with the refrigerant flow within the air conditioner’s system. It may be related to issues like a refrigerant leak or blockage. Professional service is often necessary to address this error.
E18: Overheating Error
E18 indicates that the air conditioner has detected overheating. It may be due to various factors, such as an obstructed airflow or problems with the internal components. Address any obstructions and ensure proper ventilation.
E19: Low Ambient Temperature Error
E19 occurs when the ambient temperature is too low for the air conditioner to operate efficiently. This error may be temporary and resolve as temperatures rise.
E20: High Ambient Temperature Error
E20 occurs when the ambient temperature is too high for the air conditioner to operate efficiently. Ensure proper ventilation and shading to reduce high temperatures around the unit.
E21: Voltage Error
E21 indicates a voltage-related issue. It may be due to voltage fluctuations or unstable power supply. Check the electrical connections and power source to ensure proper voltage supply.
E22: Capacitor Error
E22 suggests a problem with the capacitor in the air conditioner’s circuitry. Malfunctions in the capacitor can impact the unit’s performance. Inspect the capacitor and related components for issues.
E23: Blower Motor Error
E23 points to an issue with the blower motor or its control circuit. A malfunctioning blower motor can affect air circulation and cooling. Inspect the motor and its control components for problems.
E24: Expansion Valve Error
E24 indicates a problem with the expansion valve, which regulates refrigerant flow. Issues with the expansion valve can affect cooling efficiency. Inspect the valve and connections for potential problems.
E25: Air Filter Error
E25 suggests a problem with the air filter. A clogged or dirty air filter can restrict airflow and reduce cooling performance. Clean or replace the air filter as needed.
E26: Fan Motor Error
E26 indicates a problem with the fan motor or its control circuit. Malfunctions in the fan motor can impact air circulation. Inspect the motor and control components for issues.
E27: Remote Control Error
E27 suggests a problem with the remote control’s communication with the air conditioner. Check the remote control’s batteries, infrared signal, and any obstructions that may be blocking the signal.
E28: EEPROM Error
E28 indicates an issue with the EEPROM (Electrically Erasable Programmable Read-Only Memory) in the air conditioner’s control circuitry. This may require professional diagnosis and repair.
E29: Room Temperature Sensor Error
E29 points to a problem with the room temperature sensor. The sensor may not be providing accurate readings, affecting temperature control. Check the sensor and connections for issues, and if necessary, replace it.
E30: Condensate Pump Error
E30 indicates a problem with the condensate pump, which helps remove condensation from the unit. A malfunctioning pump can lead to water buildup. Inspect the pump and its components for issues.
E31: Inverter Module Error
E31 suggests a problem with the inverter module, which controls the compressor speed. Issues with the inverter module can affect the air conditioner’s performance. Inspect the module and related components for problems.
E32: Pressure Sensor Error
E32 points to a problem with the pressure sensor. The sensor may not be providing accurate readings, affecting the air conditioner’s operation. Check the sensor and its connections for issues, and if necessary, replace it.
E33: EEPROM Initialization Error
E33 indicates an issue with the initialization of the EEPROM (Electrically Erasable Programmable Read-Only Memory) in the air conditioner’s control circuitry. This may require professional diagnosis and repair.
E34: Startup Error
E34 suggests an error during the air conditioner’s startup process. It may be due to various factors, and professional service may be needed to diagnose and address this error.
E35: Indoor PCB Error
E35 points to a problem with the indoor printed circuit board (PCB). Malfunctions in the PCB can affect the air conditioner’s overall operation. Inspect the PCB and its connections for issues.
E36: Outdoor PCB Error
E36 indicates a problem with the outdoor printed circuit board (PCB). Issues with the outdoor PCB can impact the unit’s performance. Inspect the PCB and its connections for problems.
E37: Refrigerant Leakage Detection
E37 suggests that the air conditioner has detected a refrigerant leakage. Refrigerant leaks can impact cooling efficiency and may require professional service to locate and repair the leak.
E38: Compressor Lock Error
E38 indicates a compressor lock error. The compressor may be unable to start or function correctly. This issue often requires professional diagnosis and repair.
E39: Communication Error
E39 is another type of communication error that may occur between different components of the air conditioner. Professional diagnosis is usually necessary to identify the specific cause.
E40: Low Voltage Error
E40 indicates a low voltage error, typically due to insufficient voltage supply to the air conditioner. Check the electrical connections, circuit breakers, and the power source to ensure proper voltage levels.
E41: High Voltage Error
E41 suggests a high voltage error, often caused by excessive voltage supply. Ensure that the air conditioner is connected to the appropriate voltage source within the specified range.
E42: Motor Overcurrent Error
E42 points to a motor overcurrent error. It may be related to issues with the motor or its control circuit. Inspect the motor and control components for problems.
E43: Valve Error
E43 indicates a problem with a valve within the air conditioner’s system, such as the expansion valve or solenoid valve. Valve issues can affect the refrigerant flow and cooling efficiency. Inspect the valve and connections for problems.
E44: Pressure Protection Error
E44 suggests a pressure protection error. It may be related to issues with the refrigerant pressure in the system. This error often requires professional service to diagnose and address the problem.
E45: Voltage Stabilization Error
E45 indicates a voltage stabilization error, often due to voltage fluctuations. Ensure that the air conditioner is connected to a stable power source, and consider using voltage stabilizers if needed.
E46: DC Inverter Error
E46 points to a problem with the DC inverter, which controls the compressor’s speed. Issues with the DC inverter can affect the air conditioner’s performance. Inspect the inverter and related components for problems.
E47: EEPROM Error
E47 indicates an issue with the EEPROM (Electrically Erasable Programmable Read-Only Memory) in the air conditioner’s control circuitry. This may require professional diagnosis and repair.
E48: Startup Error
E48 suggests an error during the air conditioner’s startup process. It may be due to various factors, and professional service may be needed to diagnose and address this error.
E49: Compressor Error
E49 points to a problem with the compressor, a critical component for cooling. Issues with the compressor can affect the air conditioner’s performance and may require professional diagnosis and repair.
E50: Airflow Error
E50 indicates a problem with airflow, often related to issues with the fan or blower. Inspect the fan, blower, and related components for problems affecting air circulation.
E51: Outdoor Fan Error
E51 suggests an issue with the outdoor fan motor or its control circuit. A malfunctioning outdoor fan can disrupt heat dissipation and affect the air conditioner’s operation. Inspect the fan, motor, and control components for problems.
E52: Indoor Fan Error
E52 points to a problem with the indoor fan motor or its control circuit. A malfunctioning indoor fan can disrupt air distribution and cooling. Inspect the fan, motor, and control components for issues.
E53: High Discharge Temperature Error
E53 indicates that the air conditioner has detected a high discharge temperature. This can be caused by various factors, including a dirty evaporator or condenser coil. Ensure proper maintenance and cleaning of these components.
E54: Low Discharge Temperature Error
E54 suggests that the air conditioner has detected a low discharge temperature. This can be related to issues like insufficient refrigerant or compressor problems. Professional service may be needed to diagnose and address this error.
E55: Low Pressure Protection Error
E55 indicates a low-pressure protection error. It may be related to issues with refrigerant levels, such as a leak or insufficient charge. Professional service is often required to address this error.
E56: High-Pressure Protection Error
E56 suggests a high-pressure protection error. It could be due to factors like a refrigerant overcharge or issues with the outdoor fan. Professional service may be needed to diagnose and resolve this error.
E57: Room Temperature Sensor Error
E57 points to a problem with the room temperature sensor. The sensor may not be providing accurate readings, affecting temperature control. Check the sensor and its connections for issues, and if necessary, replace it.
E58: Ambient Temperature Sensor Error
E58 indicates a problem with the ambient temperature sensor. Similar to the room temperature sensor error, this may require sensor inspection and replacement if necessary.
E59: EEPROM Initialization Error
E59 indicates an issue with the initialization of the EEPROM (Electrically Erasable Programmable Read-Only Memory) in the air conditioner’s control circuitry. This may require professional diagnosis and repair.
E60: Inverter Module Error
E60 suggests a problem with the inverter module, which controls the compressor speed. Issues with the inverter module can affect the air conditioner’s performance. Inspect the module and related components for problems.
