1. Nagakawa Air Conditioner Error Code E0
+ Cause: Neglecting regular cleaning and maintenance of the Nagakawa air conditioner, recommended every 3 to 9 months depending on usage frequency.
+ Solution: Clean the Nagakawa air conditioner and maintain a cleaning schedule every 3 months for continuous usage, or every 6 months for occasional usage.
2. Nagakawa Air Conditioner Error Code E4
E4 Error code on Nagakawa air conditioners often arises due to malfunctioning temperature sensors in the room. Specifically:
+ Cause: Faulty indoor unit circuit board; malfunctioning room temperature sensor; lack of regular air conditioner maintenance, leading to thick dust accumulation on fan blades preventing rotation. During repair or maintenance, staff may damage the fan blades, causing the fan to not rotate but still trigger the E4 error. In cases of newly purchased Nagakawa air conditioners used for a short period, it may be due to manufacturing defects.
+ Solution: Check the sensor, repair if possible, and replace if necessary. Alternatively, replace the Sensor sensor unit on the air conditioner as approximately 09% of E4 error codes are caused by sensor issues. Check the circuit board and signal transmission lines; repair or replace if damaged (if necessary).
3. Nagakawa Air Conditioner Error Code E6
+ Cause: Unstable operation of the fan in the indoor unit.
+ Solution: Check the signal and power supply to the fan unit of the indoor unit. Replace the fan unit if the damage is severe and cannot be repaired.
4. Nagakawa Air Conditioner Reports E8 Error
E8 error code commonly occurs on Nagakawa ceiling-mounted air conditioners.
+ Cause: Pump malfunction or failure; faulty water level switch; defective circuit board.
+ Solution: Check the water pump for malfunction and replace if necessary. Consider repairing or replacing the circuit board if it no longer functions properly. Inspect and replace the water level switch if faulty.
5. Nagakawa Air Conditioner Reports F6 Error
F6 error code on Nagakawa air conditioners is a serious issue that can be difficult to resolve without sufficient technical knowledge. Therefore, it is advisable to contact the manufacturer's warranty center or a professional air conditioning technician for the best support.
+ Cause: Malfunction of the electronic circuit board not supplying power to the indoor fan unit; malfunction of the indoor fan unit.
+ Solution: Use a VOM meter to test the coil of the indoor fan. If there is no resistance, the fan unit needs replacement. If there is resistance and the fan rotates smoothly without signs of damage, the issue lies with the circuit board. You need to repair or replace the electronic circuit board.
6. Nagakawa Air Conditioner Reports F7 Error
Error code F7 on Nagakawa air conditioners indicates a malfunction with the room sensor. This sensor measures the room temperature to control the indoor and outdoor units to reach the desired temperature set by the user.
+ Cause: Malfunction of the room sensor.
+ Solution: Replace the room sensor.
7. Nagakawa Air Conditioner Indicates F8 Error
Error code F8 indicates a fault in the sensor component associated with the machine's protective function. When the air conditioner runs out of refrigerant, it cannot operate effectively, automatically shutting off to protect the compressor and indicating an error to enhance machine protection.
+ Cause: Malfunction of the water pump or water level float switch, or circuit board failure.
+ Troubleshooting: Replace the pump for models without a self-resetting feature. Alternatively, repair the circuit board or replace it with a new one for models with and without power supply. Replace the switch if it's faulty. Install a new sensor if needed.
Nagakawa air conditioners are a Vietnamese brand, managed by the conglomerate specializing in manufacturing and trading electronic and household appliances. The company's air conditioner products are manufactured in Malaysia and then imported fully assembled to Vietnam. Some notable Nagakawa air conditioner models include: Nagakawa Inverter 1 HP NIS-C09R2H10; Nagakawa 1.5 HP NS-C12R2M09; Nagakawa Inverter 2.5 HP NIS-C24R2H10; Nagakawa Inverter 1.5 HP NIS-C12R2H10; Nagakawa Inverter 2 HP NIS-C18R2H10; Nagakawa 1 HP NS-C09R2M09; Nagakawa Inverter 1.5 HP NIS-C12R2T28; Nagakawa Inverter 2 HP NIS-C18R2T28; Nagakawa Inverter 1 HP NIS-C09R2T28…