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Diane PittmanAug 31, 2025
What to do if Hitachi YUTAKI S RWM-8.0NE Air Conditioner has Receiver Communication failure?
- CCarlos PetersonAug 31, 2025
If your Hitachi Air Conditioner is not receiving a signal, check the Opentherm/Hlink connection.
What to do if Hitachi YUTAKI S RWM-8.0NE Air Conditioner has Receiver Communication failure?
If your Hitachi Air Conditioner is not receiving a signal, check the Opentherm/Hlink connection.
What to do if Hitachi YUTAKI S RWM-8.0NE Air Conditioner shows abnormal transmission between outdoor and indoor units?
If your Hitachi Air Conditioner shows 'Abnormal transmission between outdoor and indoor units', check the wiring, terminals, and PCB for faults. This issue can be caused by incorrect wiring, loose terminals, PCB failure, a tripped fuse, or the power supply being OFF.
Why does my Hitachi YUTAKI S RWM-8.0NE Air Conditioner activate safety device from excessively high discharge pressure?
If your Hitachi Air Conditioner activates the safety device due to excessively high discharge pressure, inspect the heat exchanger and refrigerant conditions. This activation can be caused by overload (obstruction of HEX, short circuit), a mixture of inert gas, or excessive refrigerant.
What causes Hitachi YUTAKI S RWM-8.0NE to activate safety device from excessively low suction pressure?
If your Hitachi Air Conditioner activates the safety device from excessively low suction pressure, inspect refrigerant levels and piping for blockages. This issue is often due to a shortage or leakage of refrigerant, piping clogging, a closed expansion valve, or a locked fan motor.
How to troubleshoot Hitachi Air Conditioner hydraulic alarm flow and water pump malfunction?
If your Hitachi Air Conditioner displays a hydraulic alarm related to flow and water pump malfunction, check the water pump for proper operation and repair or replace it if defective. This alarm indicates that water flow is not detected in the hydraulic cycle or the pump is defective.
What to do if Hitachi Air Conditioner shows Thermostat Heater Alarm?
If your Hitachi Air Conditioner is showing a high temperature in the electric heater, check the electric heater for proper operation.
How to fix Hitachi Air Conditioner activation of overcurrent protection?
If your Hitachi Air Conditioner activates overcurrent protection, inspect the inverter PCB and compressor operation. This can be caused by overload, overcurrent, failure of the Inverter PCB, a clogged heat exchanger, a locked compressor, or EVI/EVO failure.
How do I fix a 'Unit Capacity setting Error' on my Hitachi YUTAKI S RWM-8.0NE?
If your Hitachi Air Conditioner displays a 'Unit Capacity setting Error', ensure correct capacity settings for both indoor and outdoor units. This error indicates a mismatch between the indoor and outdoor unit capacities.
How to correct Hitachi YUTAKI S RWM-8.0NE incorrect indoor unit number setting?
If your Hitachi Air Conditioner displays 'Incorrect indoor unit number setting', correct the indoor unit number settings. This issue can be caused by duplication of indoor unit numbers or the number of indoor units exceeding specifications.
How to fix Incorrect PCB Setting in Hitachi YUTAKI S RWM-8.0NE?
If your Hitachi Air Conditioner shows 'Incorrect PCB Setting', correct the DSW settings. This issue is caused by a wrong DSW setting in the case of Co041.
General| Cooling Capacity | 8.0 kW |
|---|---|
| Heating Capacity | 9.0 kW |
| Energy Efficiency Ratio (EER) | 3.21 |
| Coefficient of Performance (COP) | 3.61 |
| Refrigerant | R410A |
| Weight (Indoor Unit) | 13 kg |
| Weight (Outdoor Unit) | 54 kg |
| Noise Level (Outdoor Unit) | 52 dB(A) |
| Type | Heat Pump |
| Power Supply | 220-240V, 50Hz |
| Dimensions (Indoor Unit) | 295 x 998 x 210 mm |
Crucial safety warnings regarding power connection, electrical parts, service covers, and fire procedures.
Important notices regarding reading manuals, verifying information, product specifications, and intended use.
Considerations for electrical data, including power supply, phase, and current ratings.
Guidelines for electrical connection, including wiring size and dedicated power circuits.
Wizard start-up configuration steps, including language selection and assistant type.
List of alarms for indoor units, detailing code, origin, abnormality, and main factors.
List of alarms for outdoor units, detailing code, category, type of abnormality, and main cause.
General maintenance procedures and precautions for all inspections and checks.
Detailed maintenance steps for the outdoor unit, covering fan, heat exchanger, and piping.
