Hitachi R-WB640VRU0X - User Manual

Questions and Answers

M
Megan HillAug 7, 2025
Why is my Hitachi R-WB640VRU0X not cold enough?
- A
  Amber CastilloAug 7, 2025
  If your Hitachi Refrigerator isn't getting cold enough, consider these solutions: Avoid placing the refrigerator in direct sunlight or near heat sources. Ensure the 'Refrigerator' button is set to normal or coldest. Allow sufficient space between food items for proper air circulation. Always ensure the door is firmly closed and avoid frequent opening and closing. Also, make sure food is adequately cooled before refrigerating.
D
Derek JensenAug 10, 2025
What to do if the Hitachi Refrigerator handle cannot be locked?
- E
  Evelyn ClarkAug 11, 2025
  If the handle of your Hitachi Refrigerator cannot be locked, remove the obstruction.
R
rsampsonAug 15, 2025
How to stop Hitachi R-WB640VRU0X from smelling?
- M
  Michelle JamesAug 15, 2025
  To address unpleasant smells inside your Hitachi Refrigerator, use food wraps or sealed containers to store food items.
J
Jacqueline DunnAug 19, 2025
What to do if food freezes in Hitachi Refrigerator?
- B
  Brooke JohnsonSep 12, 2025
  If food is freezing in the refrigerator compartment of your Hitachi Refrigerator, try the following: Adjust the 'Refrigerator' button to normal or cold. Ensure enough space between food items and avoid blocking the cold air vent.
M
Marie HallAug 23, 2025
How to reduce noise from Hitachi Refrigerator?
- T
  tracy64Aug 23, 2025
  If your Hitachi Refrigerator is noisy, ensure it is installed according to the preparing instruction manual.
J
John TurnerAug 28, 2025
How to fix Hitachi Refrigerator control panel changing?
- P
  pricechristopherAug 28, 2025
  If the control panel display of your Hitachi Refrigerator keeps changing, turn off the store-display mode by powering off and then powering on the refrigerator again. This should return the refrigerator to normal mode.
K
Kevin MartinezSep 1, 2025
Why does my Hitachi Refrigerator operation sound last long?
- J
  jennifergreenSep 1, 2025
  If the operation sound of your Hitachi Refrigerator lasts long, it is because the compressor operates at low speed to conserve energy.

This document is an instruction manual for the Hitachi R-WB640VRU0X No Frost Refrigerator, designed for household use and utilizing R600a refrigerant. It provides comprehensive details on installation, operation, maintenance, and troubleshooting.

Function Description

The Hitachi R-WB640VRU0X is a multi-door refrigerator featuring various compartments designed for optimal food storage. Key compartments include:

Refrigerator Compartment: Stores items like side dishes and desserts at 2°C-5°C. It includes adjustable-height shelves and door pockets for packed small food and drinks.
Vegetable Compartment: Features a vegetable drawer for fruits and vegetables, maintaining temperatures between 3°C-7°C.
Dry-Vegetable Compartment: Includes a dry-vegetables drawer for items like tea and dry food, also at 3°C-7°C. This compartment has a humidity control lever to adjust dry air flow.
Utility Drawer: Designed for cosmetics, medicine, and packed small food.
Vacuum Compartment: This unique feature allows for vacuum storage, preserving nutrients and tastes longer by preventing oxidation. It operates at -1°C and includes an aluminum tray. The vacuum pump activates when the handle is locked, creating a vacuum with a "Whoosh..." sound.
Selectable Zone Compartment: Offers flexible temperature settings, allowing it to function as a Refrigerator (1°C-5°C), Chill/Meat (-1°C-3°C), Soft Freeze (-1°C to -5°C), or Freezer (-20°C to -18°C).
Freezer Compartment: Stores frozen food and ice cream at -20°C to -18°C. It includes an Auto Ice Maker and various freezer drawers.

Important Technical Specifications

Model: R-WB640VRU0X
Refrigerant: R600a (flammable hydrocarbon, non-fluorocarbon)
Insulation: Cyclopentane (blowing agent for urethane heat insulation)
Operating Temperature Range: 10°C to 43°C ambient temperature for sufficient performance.
Air Ventilation Space: At least 100 mm over the top, 100 mm at the rear, and 70 mm at both sides.
Water Tank Capacity (for Auto Ice Maker): Approx. 3.0 liters.
Ice Preparation Time (8 cubes/cycle): Approx. 90 to 110 minutes (Normal Operation), Approx. 70 to 90 minutes (Quick Freezing).
Power Supply: Must be connected to an exclusive wall power outlet with the rated voltage.
Spare Parts Availability: 7 years for general spare parts, 10 years for door gaskets.

Usage Features

Auto Door Function: Allows easy opening of doors by lightly touching the "Auto Door" button. The operation sound is heard, and the door opens automatically. The opening angle may vary based on installation conditions and contents. This function can be deactivated for child safety.
Control Panel: A touch-sensitive panel for setting temperatures, activating quick modes, and other functions.
- Temperature Control: Individual temperature settings for Refrigerator, Freezer, and Selectable Zone compartments, with options like "Coldest," "Normal," and "Cold." The Selectable Zone offers "Freezer," "Chill/Meat," "Soft Freeze," and "Refrigerator" modes.
- Quick Mode: Includes "Quick Freezing" (for rapid freezing of food or ice, lasting approx. 2 hours) and "Quick Cooling" (for rapid cooling of food or drinks, lasting approx. 90 minutes). These modes prioritize cooling in respective compartments.
- Energy Saving Button: Recommended for low storage volume or long vacations when doors are not frequently opened. It reduces energy consumption by optimizing operation.
- ECO Monitoring Sensor: Detects when someone approaches the refrigerator (within approx. 80 cm), automatically lighting up the "Auto Door" open button and door handle LED.
- Door Alarm and ECO Alarm Function: Informs the user if a door is left open for more than 1 minute with a "PeepPeepPeep" sound and flashing LEDs on the control panel. This can be deactivated.
- Ice Maker / Auto Door Lock: Prevents accidental activation of all buttons on the control panel, useful for households with children.
Swing Partition: Automatically closes when the door is opened and opens when the door is closed. It contains a heater to prevent dew formation, which may make the left door feel heavy.
Adjustable-height Shelves: Allows customization of shelf height to accommodate different food sizes.
Food Storage Guidelines: Emphasizes keeping enough space between food items for cold air flow, cooling warm food before storage, not blocking cold air vents, and using plastic wrap or sealed containers to prevent drying and odor transfer. Raw meat and fish should be stored in suitable containers to avoid contact with other food.

Maintenance Features

Cleaning:
- General Cleaning: Wipe surfaces gently with a soft cloth.
- Power Plug: Clean dust from the power plug once a year with a dry cloth to prevent fire.
- Door Gaskets: Wipe thoroughly once a month.
- Door Surface: Wipe with a soft cloth wetted with lukewarm water once a month.
- Each Shelf/Pocket: Wipe with a soft cloth wetted with lukewarm water once every three months.
- Drip Catcher: Wipe away accumulated liquid once a month.
- Back Panel, Floor of Refrigerator: Raise the refrigerator using leg adjusters, pull it out, and wipe off smudges and fine dust from the back panel, walls, and floor once or twice a year.
- Drawers: Wipe with a soft cloth wetted by lukewarm water once every three months.
- Ice Maker: Discard the first ice cubes for cleaning when using for the first time. Clean the Water Tank regularly (once a week) and replace the Water Filter every 3 to 4 years.
- Vacuum Compartment: Clean the vacuum box gasket with a cloth soaked in warm water. Avoid detergents or other products as they may cause deformation or loss of vacuum property.
Disassembly for Cleaning: Instructions are provided for safely removing the Ice Bank, Vegetable Drawer, Dry-Vegetable Drawer, Utility Drawer, and Door Pockets for cleaning. The vacuum case can also be disassembled for cleaning.
Professional Maintenance: Maintenance work must only be carried out by well-trained maintenance personnel. Repairs by professional repairers (who are not authorized by the importer) will void the guarantee. Self-repair is limited to specific parts like door handles, hinges, trays, baskets, and door gaskets, following user manual instructions.