The E5 error in Carrier AC indicates an issue with the indoor coil temperature sensor, meaning the sensor that monitors the temperature of the evaporator coil inside the indoor unit is malfunctioning or providing inaccurate readings. This sensor is critical for ensuring that the system regulates cooling properly by detecting the temperature of the air passing over the evaporator coil. When the E5 error occurs, it typically means that the indoor coil temperature sensor is either faulty, disconnected, or experiencing wiring issues. A malfunction in this sensor can cause improper cooling operation, such as the system freezing up, failing to cool efficiently, or running erratically. The system relies on accurate readings from the sensor to adjust the cooling cycle and prevent issues like frozen coils or short cycling. To protect the system, the E5 error disables certain operations until the sensor issue is resolved. Once the faulty sensor is repaired or replaced and proper temperature readings are restored, the system will reset and return to normal operation. Regular maintenance, including checking the condition of the indoor coil temperature sensor and ensuring proper wiring connections, can help prevent the E5 error and ensure that the Carrier AC runs efficiently and effectively.

Meaning

Indoor Coil Temperature Sensor Error