Technicians for air conditioners Frigidaire generally excel in diagnosing issues accurately. However, there was one instance where an intermittent cooling problem was initially misdiagnosed as a faulty thermostat, leading to an unnecessary replacement and additional costs. More rigorous diagnostic checks could prevent such errors.
E1: Temperature Sensor Failure
This error suggests a malfunction with the temperature sensor, affecting the unit’s ability to monitor and maintain the desired temperature.
E2: Evaporator Sensor Failure
There’s an issue with the evaporator temperature sensor, which can hinder the unit’s cooling efficiency.
E3: Communication Error
This error indicates a communication failure between the main control board and the user interface, affecting the user’s ability to control the unit or adjust settings.
E4: Open Circuit Error
The unit has detected an open circuit, which can hinder its operation. This might involve components like the compressor or fan motor.
E5: Overcurrent Protection
The unit has drawn excessive current, triggering overcurrent protection. Potential causes include a faulty motor or compressor.
E6: Compressor Start-up Error
The compressor is unable to start properly. This could be due to issues with the compressor itself, the capacitor, or related circuitry.
E7: EEPROM Error
This indicates a problem with the EEPROM memory on the control board, affecting the unit’s ability to recall settings.
E8: High Pressure Warning
The system’s pressure is too high, possibly due to a refrigerant issue, blocked coils, or malfunctioning fan.
E9: Low Pressure Warning
The system’s pressure is too low, which can be caused by a refrigerant leak or a clogged filter.
EA: Overheating Protection
The unit has detected an overheating situation. This can be due to blocked vents, a dirty or clogged filter, or issues with the fan motor.
EB: Defrosting Error
This error indicates that the unit is having trouble with its defrosting process. Issues might involve sensors, heaters, or control board malfunctions.
EC: Refrigerant Leakage Detection
The unit has detected a potential leak in the refrigerant. A refrigerant leak can impact the efficiency and cooling capability of the air conditioner.
ED: Outdoor Fan Motor Failure
This code signifies a malfunction with the outdoor fan motor, which can affect the unit’s heat dissipation ability.
EE: Indoor Fan Motor Failure
The indoor fan motor is not operating correctly. This can hinder the circulation of cooled air inside the room.
EF: Drainage Error
The unit has detected an issue with the drainage system, potentially due to blockages or kinks in the drainage hose.
EG: Compressor Overload
The compressor is overloaded, possibly due to continuous operation, faulty capacitors, or other underlying issues.
EH: Overvoltage or Undervoltage Error
The unit is experiencing power supply issues, either too high or too low voltage. Ensure that the appliance is connected to an appropriate power source.
EI: Outdoor Temperature Sensor Error
There’s a malfunction with the outdoor temperature sensor, affecting the unit’s ability to gauge the external temperature and adjust its operation accordingly.
EJ: Remote Control Signal Error
The unit is having trouble receiving signals from the remote control. This could be due to low battery in the remote or interference in signal transmission.
EL: Humidity Sensor Error
This error indicates a malfunction with the humidity sensor, affecting the unit’s ability to monitor and control room humidity.
EM: Ambient Temperature Sensor Error
This error points to an issue with the ambient temperature sensor. The unit may struggle to sense and adjust to the room’s current temperature.
EN: Icing Detection
The air conditioner has detected icing on the coils. This can impede the cooling process and might be due to issues like low refrigerant or poor airflow.
EO: Compressor Temperature Sensor Error
There’s a malfunction with the compressor temperature sensor, which can affect the compressor’s operation and the unit’s cooling efficiency.
EP: Condenser Coil Temperature Sensor Error
This error indicates an issue with the sensor monitoring the temperature of the condenser coils. The cooling efficiency of the unit can be compromised.
EQ: Internal Memory Error
The air conditioner’s internal memory is malfunctioning. This can affect its ability to recall settings or run specific modes.
ER: Filter Detection Error
The unit has detected a problem with the filter, either it’s excessively dirty, missing, or not properly placed.
ES: PFC Circuit Error
This indicates a problem with the Power Factor Correction circuit. The unit’s electrical efficiency may be affected.
ET: External Overload Protection
The external circuit protection device (like a breaker or fuse) has tripped due to an overload condition.
EU: Transformer Error
The transformer, which helps in stepping down or up the voltage, is malfunctioning. This can impact the power supply to the unit.
EV: Communication Error with External Devices
The air conditioner is having trouble communicating with external devices or modules. Check connections and external control systems.
