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M
Manuel EvansAug 31, 2025
What to do if Hitachi YUTAKI M RASM-4VNE has Receiver Communication failure?
- RryanscottAug 31, 2025
If your Hitachi Air Conditioner is not receiving a signal, check the Opentherm/Hlink connection.
What to do if Hitachi YUTAKI M RASM-4VNE has Receiver Communication failure?
If your Hitachi Air Conditioner is not receiving a signal, check the Opentherm/Hlink connection.
How to fix Incorrect PCB Setting in Hitachi YUTAKI M RASM-4VNE 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.
How to correct Hitachi Air Conditioner 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 do I fix a 'Unit Capacity setting Error' on my Hitachi YUTAKI M RASM-4VNE?
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 fix Hitachi YUTAKI M RASM-4VNE 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.
What to do if Hitachi YUTAKI M RASM-4VNE 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 troubleshoot Hitachi YUTAKI M RASM-4VNE 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 causes Hitachi YUTAKI M RASM-4VNE 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.
Why does my Hitachi YUTAKI M RASM-4VNE 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 to do if Hitachi 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.
General| Category | Air Conditioner |
|---|---|
| Model | YUTAKI M RASM-4VNE |
| Cooling Capacity | 4.0 kW |
| Heating Capacity | 5.0 kW |
| Refrigerant | R410A |
| Type | Heat Pump |
| Coefficient of Performance (COP) | 4.00 |
| Power Supply | 220-240 V, 50 Hz |
Detailed safety precautions and warnings for operating YUTAKI heat pumps.
Diagrams and part lists for refrigerant and hydraulic circuits of YUTAKI S split systems.
Step-by-step guide for initial controller setup and configuration assistant.
Procedures for commissioning the unit, including Air Purge, Unit Test Run, and Screed Drying.
List of indoor unit alarms, their origin, detail of abnormality, and main factors.
List of outdoor unit alarms, their type of abnormality, and main causes.
General procedures for maintenance of outdoor and indoor units, including checks and cleaning.
Detailed maintenance steps for the outdoor unit's fan, heat exchanger, piping, cabinet, and electrical equipment.
General checks for indoor unit cabinet, water piping, water flow, and pressure.
