What to do if Hitachi YUTAKI S RWM-4.0NE Air Conditioner shows Failure of discharge gas pressure sensor?
If your Hitachi Air Conditioner displays a 'Failure of discharge gas pressure sensor', check the connectors for any looseness or breakage. The issue may be a loose, disconnected, broken, or short-circuited connector.
What to do if Hitachi YUTAKI S RWM-4.0NE 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-4.0NE 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.
How to solve Incorrect indoor unit setting on Hitachi YUTAKI S RWM-4.0NE?
Correct the indoor unit capacity settings.
What causes Abnormality of picking up circuit for protection (Outdoor unit) in Hitachi YUTAKI S RWM-4.0NE?
If your Hitachi Air Conditioner displays 'Abnormality of picking up circuit for protection (Outdoor unit)', inspect indoor unit PCB and wiring. The cause can be a failure of indoor unit PCB, incorrect wiring, or connection to PCB in the indoor unit.
What to do if Hitachi Air Conditioner shows Transistor module protection activation?
Inspect the transistor module conditions.
What does Decrease in discharge gas superheat mean for Hitachi YUTAKI S RWM-4.0NE Air Conditioner?
If your Hitachi Air Conditioner displays 'Decrease in discharge gas superheat', check refrigerant charge and inspect related components. Possible causes are excessive refrigerant charge, failure of thermistor, incorrect wiring, incorrect piping connection, or expansion valve locking at opened position (disconnected connector).
How to solve RF Communication failure on Hitachi YUTAKI S RWM-4.0NE Air Conditioner?
If your Hitachi Air Conditioner shows 'RF Communication failure', check the RF communication setup. This issue occurs when there is no communication for 1 hour with one or two RF receivers which are bound to the RF-Bridge.
What to do if Hitachi Air Conditioner shows Increase in the inverter fin temperature or abnormality?
Check cooling conditions for the inverter.
How to fix Incorrect PCB Setting in Hitachi YUTAKI S RWM-4.0NE Air Conditioner?
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| Brand | Hitachi |
|---|---|
| Model | YUTAKI S RWM-4.0NE |
| Category | Air Conditioner |
| Language | English |
Provides crucial danger and caution warnings for safe installation and operation.
Highlights critical reading instructions and general notices for correct system installation and use.
Illustrates refrigerant and hydraulic circuits for YUTAKI S, S COMBI, and S80 split systems.
Shows refrigerant and hydraulic circuits for the YUTAKI M monobloc system.
Discusses refrigerant piping length, size, and precautions for leaks.
Guides through the initial setup process using the Configuration Assistant or Advanced Configuration.
Lists indoor unit alarm codes, retry/stop codes, origin, and detailed abnormalities.
Details outdoor unit alarms, categories, types of abnormalities, and main causes.
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