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Emily RiggsSep 2, 2025
What to do if Hitachi YUTAKI S80 shows Transmission error between Inverter PCB and Main PCB?
- Ttracey63Sep 2, 2025
Inspect connection between Inverter PCB and Main PCB.
What to do if Hitachi YUTAKI S80 shows Transmission error between Inverter PCB and Main PCB?
Inspect connection between Inverter PCB and Main PCB.
What causes Water inlet thermistor abnormally (THMwi) in Hitachi YUTAKI S80?
If your Hitachi Air Conditioner displays any of the following errors: Water inlet thermistor abnormally (THMwi), Water outlet thermistor abnormally (THMwo), Indoor Liquid Pipe Temp Thermistor Abnormality (THMl), Indoor Gas Pipe Temperature Thermistor Abnormality (THMg), Water Circuit 2 thermistor abnormally (THMwo2), Water DHW thermistor abnormally (THMdhwt), Auxiliary sensor 2 thermistor abnormally (THMaux2), Auxiliary sensor 1 thermistor abnormally (THMaux1), Water Plate HEX pipe thermistor abnormally (THMwohp), Suction R134a pipe thermistor abnormally (THMs), Discharge R134a pipe thermistor abnormally (THMd), check the connectors for any looseness or breakage. The cause may be a loose, disconnected, broken or short-circuited connector.
What causes Failure of suction gas pressure sensor in Hitachi YUTAKI S80?
If your Hitachi Air Conditioner displays a 'Failure of suction gas pressure sensor', check the connectors for any looseness or breakage. The problem may stem from a loose, disconnected, broken, or short-circuited connector.
What to do if Hitachi 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 causes Abnormality of picking up circuit for protection (Outdoor unit) in Hitachi Air Conditioner?
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.
General| Refrigerant | R32 |
|---|---|
| Type | Air-to-Water Heat Pump |
| Operating Temperature Range (Heating) | -20°C to 35°C |
| Operating Temperature Range (Cooling) | 10°C to 46°C |
| Sound Power Level | Data varies significantly depending on the specific indoor and outdoor unit models. Please refer to the specific model's datasheet. |
| Noise Level (Indoor Unit) | Data varies significantly depending on the specific indoor unit model. Please refer to the specific model's datasheet. |
| Noise Level (Outdoor Unit) | Data varies significantly depending on the specific outdoor unit model. Please refer to the specific model's datasheet. |
| Power Supply | 50Hz |
| Dimensions (Indoor Unit) | Data varies significantly depending on the specific indoor unit model. Please refer to the specific model's datasheet. |
| Dimensions (Outdoor Unit) | Data varies significantly depending on the specific outdoor unit model. Please refer to the specific model's datasheet. |
| Weight (Indoor Unit) | Data varies significantly depending on the specific indoor unit model. Please refer to the specific model's datasheet. |
| Weight (Outdoor Unit) | Data varies significantly depending on the specific outdoor unit model. Please refer to the specific model's datasheet. |
Crucial safety warnings and instructions for correct installation and operation.
Highlights critical instructions for manual adherence, specifications, and system integrity.
Details Energy-related Product (ERP) performance data for space heaters, efficiency, and energy classes.
Illustrates refrigerant and hydraulic circuits for YUTAKI S and S COMBI split systems.
Outlines safety measures and concentration limits for refrigerant leaks.
Lists indoor unit alarm codes, their origin, details of abnormality, and main troubleshooting factors.
Details outdoor unit alarm codes, categories, types of abnormality, and their main causes.
