During a hot summer, my air conditioner unexpectedly stopped cooling. The service process proved to be frustrating. It took several days to secure a service visit, and once the technician arrived, they couldn’t identify the issue and had to return with replacement parts. This extended delay and discomfort due to a lack of cooling significantly impacted my satisfaction with the service.
E01: Filter Replacement Needed
The air filter in the unit is clogged or dirty, leading to reduced airflow and efficiency. It requires cleaning or replacement.
E02: Refrigerant Leakage
The system has detected a potential leak in the refrigerant, affecting the cooling capacity.
E03: Compressor Overload
The compressor is drawing too much current, suggesting it may be overheating or malfunctioning.
E04: Evaporator Coil Freezing
Ice formation is detected on the evaporator coil, which can hinder the AC’s cooling function.
E05: High Discharge Temperature
The temperature of the refrigerant in the discharge line is higher than expected, indicating potential compressor issues or refrigerant overcharge.
E06: Fan Motor Malfunction
The fan motor responsible for circulating the air is not working correctly.
E07: Sensor Fault
There’s a malfunction with one of the unit’s sensors, leading to incorrect readings and potential system inefficiencies.
E08: Drainage Problem
The condensate drain is blocked or not draining properly, leading to potential water leaks.
E09: Communication Error
The main control unit is having trouble communicating with other components of the system.
E10: High or Low Voltage
The system is detecting voltage levels that are either too high or too low for safe operation.
E11: Insufficient Refrigerant
The refrigerant levels in the system are below the required threshold, affecting the unit’s cooling capacity.
E12: Capacitor Failure
There’s an issue with the capacitor, leading to problems starting the compressor or fan.
E13: Condenser Coil Blockage
The condenser coil is clogged or dirty, reducing the system’s ability to release heat efficiently.
E14: Remote Control Signal Issue
The air conditioner is having trouble receiving signals from the remote control, possibly due to low battery or interference.
E15: Indoor Unit Overheating
The indoor unit is registering temperatures that are too high, signaling potential blockages or component failures.
E16: Excessive Noise or Vibration
The system has detected unusual noises or vibrations, which could stem from loose parts or imbalances.
E17: Defrosting Sensor Malfunction
The sensor responsible for triggering the defrost cycle is not functioning correctly.
E18: External Unit Overload
The external unit or compressor is drawing too much power, indicating potential mechanical issues.
E19: Inverter Fault
There’s a malfunction within the inverter circuit, affecting the compressor’s speed and efficiency.
E20: Circuit Board Failure
There’s a problem with the unit’s main circuit board, leading to erratic or non-functional operation.
