Brand: HITACHI
Category: Refrigerator
Document Type: Manual
Language: EN
Manual for R-X730GS
Uploaded: Nov. 21, 2025, 6:58 p.m.
Warranty Information
Refer to your guarantee card for warranty details.
Tips for using the refrigerator wisely for energy savings
- Reduce the frequency of opening and closing the refrigerator door and keep them open for the shortest time possible.
- Do not overfill the refrigerator. Overfilling prevents proper circulation of cool air and consumes unnecessary power. Ensure there are appropriate intervals between food items.
- Do not place hot food directly into the refrigerator. Allow hot food to cool down first to prevent raising the internal temperature and affecting other stored food.
- Provide adequate space around the refrigerator. Insufficient clearance prevents proper heat dissipation, leading to wasted energy.
- Replace any damaged door gaskets. Leaks in the gasket allow cool air to escape, reducing efficiency.
Frequently Asked Questions (FAQs)
- If the ice is not made: See page 72.
- If the refrigerator is not cooled down well: See page 73.
- If frost or dew is formed: See page 73.
How to use the electric doors:
Auto Door: Gently touch the panel to open or close the refrigerator door or drawers.
To set Auto Door: Press MENU, then continuously press the Freezer button for 3 seconds until a beep sounds and the "Auto Door" indicator lights up. To cancel, press MENU and then the Freezer button for 3 seconds until the "Auto Door" indicator turns off.
How to adjust refrigerator temperature:
Press MENU, then press the Fridge button repeatedly to cycle through temperature settings. The default setting is typically indicated.
Ice Maker
For first-time use or after more than one week of non-use: Operate the "Ice Maker Cleaning" function.
To stop ice making: Press MENU, then press the Ice Maker button until the "Off" indicator lights up.
To start ice making: Press MENU, then press the Ice Maker button until the "On" indicator lights up.
Troubleshooting and error codes
| When this happens | Check Item | Action and Reasons |
|---|---|---|
| Not cooled well. | Have 24 hours passed since the installation? | Cooling may take more than 24 hours at installation. Place food at appropriate intervals, refrain from opening and closing a door as much as possible and wait. Cooling takes more time during summer or in case of a lot of food being stored. |
| No ice is made. | Have 24 hours passed since the installation? | As the entire refrigerator is not cooled immediately after installation, it takes more than 24 hours for the first ice to be made. Place food at appropriate intervals, refrain from opening and closing a door as much as possible and wait. |
| The Control Panel does not respond. | Is "Lit" in the Display Section? If so, the Operation Section is locked. | Cancel the lock of the Control Panel. ( Pg.63) |
| The Operation Section is unlit. | Is Refrigerator Compartment Door open? | Operate after closing it. |
| Ice cannot be made at all. | Is a water drop or dirt attached to the Control Panel? | Wipe off dirt with a wet cloth and then wipe off moisture with a dry cloth. |
| Ice cannot be made at all. | Are you wearing gloves or applying a plaster? | Touch directly with your finger. |
| Ice cannot be made at all. | Did you touch adjacent Control Panel wrongly? | Touch the target Control Panel only. |
| Ice cannot be made at all. | Is "Off" lit in the Display Section? Ice making is set to Stop Ice Making. | Set it to "On" or "Quick" mode. Pg.56, 57 |
| Ice cannot be made at all. | Is "Water" lit in the Display Section? The water in the water supply tank is low. | Pour water into the water supply container. Pg.56, 57 |
| It takes a long time to make ice. | Is the water in the water supply tank low? | If the water in the tank is low, ice may not be made. Add water until water level reaches to the "Container-full line" of the water supply container. → Pg.56 |
| It takes a long time to make ice. | Is the water supply container pushed firmly until it is beyond the "Container set position" line? | Push it beyond the "Container set position" line. → Pg.56 |
| It takes a long time to make ice. | Do you push it to the end until it snaps? | Push the frame back until it snaps. (→ Pg.69) |
| It takes a long time to make ice. | Is anything other than ice stored in the ice case? | Remove it from the Ice Case. |
| It takes a long time to make ice. | Is the ice case filled with ice over the limit line of stored ice amount? | Level the ice. Pg.57 |
| It takes a long time to make ice. | Do you open the door frequently or store a large amount of food at a time? | The inside is not cooled down enough. Minimize the number of times of opening and closing the door until it cools fully. Allow clearance as much as possible between each stored food. |
| It takes a long time to make ice. | Is the surrounding temperature low? | Ice making takes more than four hours during winter. Refrain from opening and closing a door as much as possible and wait. |
| It takes a long time to make ice. | Have you just changed the setting from "Off" to "On"? | Ice-making may take time immediately after changing the setting. Refrain from opening and closing a door as much as possible and wait. |
| Projection is generated on ice. | Does any food or package caught in the door of the Freezer or Ice Compartments prevent the door from closing completely? | Remove caught food, if any, and close the door securely. |
| Projection is generated on ice. | Is the "Energy Saving" mode "ON"? | Exit the "Energy Saving" mode. → Pg.62 |
| Stored ice becomes small. | Is old ice left unused for a long time? | The old ice cubes become smaller by themselves and may cling to each other. |
| Ice sticks together. | Do you open the door frequently or store a large amount of food at a time? | Open/close the door quickly or reduce frequency of opening and closing the door. |
| Small ice is made. | Has a door of the Refrigerator Compartment or the drawers incompletely closed temporarily? | Close the door completely. |
| Connected ice is made. | Is the water in the water supply tank low? | If the water in the tank is low, ice may not be made. Add water until water level reaches to the "Container-full line" of the water supply container. → Pg.56 |
| There is white impurity in ice. | Is the Ice Tray damaged? | A damaged Ice Tray precludes the removal of ice cubes from the Ice Tray, resulting in broken ice cubes or ice cubes sticking to each other. Contact your distributor for the replacement of the Ice Tray. |
| There is white impurity in ice. | Did you use mineral water to make ice? | Water in the groove in the Ice Tray may be frozen and sticks to ice cubes. It does not indicate any trouble. It is because the fine air bubble in water is contained in ice. Mineral contained in water may freeze and become white impurity in ice. It may remain after thawing in water, but it is harmless. |
| Ice tray frame cannot be drawn. | Is "Off" set? | Set "Off". When the "Off" indicator lamp is blinking, wait for 1 minute until "Off" is lit, and then draw the ice tray. → Pg.69 |
| When you do not make ice | Is "Off" set? | See "Stop Ice Making". Pg.57 |