This document describes the Hisense BCD-720WP1BF1Z9/HC1(H) Refrigerator, a cold storage and freezing appliance. It serves as a service manual, providing detailed information on its operation, maintenance, and troubleshooting.
Function Description
The refrigerator is designed for both cold storage and freezing, offering a comprehensive solution for food preservation. It features an automatic ice maker and a water dispenser for added convenience. The appliance is equipped with a control panel on the top cover, allowing users to manage various settings, including temperature control for both the freezer and fridge compartments, and special modes like Super Freeze and Super Cool.
The control panel displays temperature settings and indicators for different modes. A "Child Lock" function prevents unintended changes to settings, while a "Door Alarm" alerts users if a door is left open. The ice maker can produce both cubed and crushed ice, and its operation can be turned on or off via the "Ice Off" button. The water dispenser provides cold water on demand.
The refrigerator incorporates an automatic defrost system to prevent frost buildup. In case of malfunctions, an error display system provides codes to assist in diagnosis.
Important Technical Specifications
- Product Name: 冷藏冷冻箱 (Cold Storage and Freezing Box)
- Product Model: BCD-720WP1BF1Z9/HC1(H)
- Document Name: 售后服务技术资料 (After-sales Service Technical Data)
- Document Number: BSSJ00004644
- Date of Preparation: 2022 年 1 月 3 日 (January 3, 2022)
- Design Pressure: High Side: 250 psig / Low Side: 88 psig
- Refrigerant / Amount: R600a (62g)
- Volume (Refrigerator / Freezer): 25.4 (17.6 / 7.8) cu.ft
- Rated Voltage: AC115V
- Rated Frequency: 60Hz
- Rated Current: 3.0A
- Defrost Power: 220W
- Foaming Agent: Cyclopentane
- Net Weight: 131kg
- Gross Weight: 142kg
- Dimensions (W×D×H with hinges): 91.4×85.4×177.8cm
- Dimensions (W×D×H without hinges): 91.4×85.4×177.8cm
- Damper: Rated voltage: DC12V, Rated current: 60mA
- Light: Rated voltage: DC12V
- Door Switch: Load voltage: DC5V, Load current: 0.05A
- Electrically Operated Valve: Rated voltage: DC12V, Coil resistance: 32Ω±5Ω (at 20℃)
- Water Valve: Rated voltage: 110-127V, 50-60Hz, 20W
- Dispenser Motor: Rated voltage: DC12V
- Display Component: Rated voltage: DC5V
- Compressor: Input voltage/frequency: 115V/60Hz, Input power: ≤300W
- Fan Motor (Freezer & Condenser): DC12V
- Ice Making Capacity: 12 kg/24 h
Usage Features
The refrigerator offers a user-friendly experience with its intuitive display controls.
- Temperature Control: Users can adjust the freezer temperature from -14°C to -24°C (or -11°F to 12°F in Super Freeze mode) and the fridge temperature from 2°C to 8°C (or 36°F in Super Cool mode).
- Super Freeze/Cool: These modes rapidly lower the temperature in their respective compartments to quickly freeze or cool food, preserving vitamins and nutrients. Super Freeze automatically deactivates after 52 hours, and Super Cool after 3 hours.
- Energy Saving Mode: This mode optimizes energy consumption by automatically setting the fridge to 6°C (43°F) and the freezer to -17°C (1°F).
- Water Filter: The appliance includes a water filter, which should be replaced every 6 months or after dispensing approximately 300 gallons of water. The filter icon blinks as a reminder.
- Dispenser Control: The dispenser offers cubed ice, crushed ice, and cold water. The "Ice Off" button controls the ice maker's operation.
- Child Lock: This feature locks the control panel and dispenser function to prevent accidental changes.
- Door Alarm: An audible alarm and a flashing icon alert users if a door is left open for an extended period.
- Leveling: The appliance needs to be leveled during installation to ensure proper door closure and sealing, which prevents cooling, frost, or moisture problems. The top should be tilted backward by 10-15mm for self-closing doors.
- Water Supply Connection: The refrigerator requires a cold water supply with an inlet pressure between 207kPa and 896kPa for the ice maker and water dispenser to function correctly. A booster pump may be needed for low water pressure areas.
- Storage: The refrigerator compartment is ideal for vegetables and fruits, which should be packed to retain moisture and prevent flavor transfer. Glass shelves and crisper drawers are removable for cleaning and reorganization.
Maintenance Features
The service manual provides detailed instructions for troubleshooting and repairing various components.
- Troubleshooting Guide: A comprehensive table lists common problems, possible causes, and solutions, covering issues like appliance not working, odors, noise, frost, dew, light failure, and ice/water dispensing problems.
- Error Display: The control panel displays error codes (e.g., E0 for Environment sensor error, F0 for Condenser fan error) to help identify specific malfunctions. Flowcharts guide technicians through checking methods for each error.
- Component Checking Methods: Detailed steps are provided for checking the functionality of key components:
- Mainboard: Instructions for removal and replacement.
- Compressor: Checking voltage and frequency, and replacing the drive board or compressor if necessary.
- Fan Motor (Freezer & Condenser): Checking wiring, output voltage, and replacement procedures.
- Damper: Checking wiring and operation.
- Light (LED): Checking wiring, output voltage, and removal/replacement of top and side lights.
- Door Switch: Checking wiring, magnet presence, and switch operation (short circuit when closed, open circuit when open).
- Defrost Heater: Checking wiring, resistance, and activation of forced defrost mode.
- Display Component: Checking wiring, output voltage, and removal.
- Dispenser Motor: Checking wiring and output voltage.
- Lever Switch: Checking wiring and switch operation.
- Water System: Schematic diagrams and checking methods for the electrically operated valve and water valve, including resistance measurements and flow sensor checks.
- Ice Maker & Ice Crusher Motor Assembly: Checking water line connection, wiring, and motor operation, including resistance measurements for the ice crushing motor.
- Electromagnetic Valve: Detection methods for leaks, reversing action, and reliability.
- Maintenance Mode: A special mode allows engineers to force components on or off for diagnostic purposes, aiding in fault diagnosis.
- Sensor R-T Table: A table provides resistance values for various sensors at different temperatures, enabling technicians to verify sensor functionality using a multimeter.
- Cooling System Repairing: Information on the refrigeration system, including a summary of repair processes, regulations, practical work, and brazing reference drawings.
- Door Removal: Instructions for disassembling and reassembling fridge and freezer doors, as well as removing the ice maker part and water pipe connectors, to facilitate access for repairs or moving the appliance.
- Cleaning: Recommendations for cleaning the interior to prevent odors and cleaning the water dispenser parts to maintain water quality.
- Frost Removal: Instructions for manual defrosting if automatic defrost is insufficient, emphasizing the use of appropriate tools to avoid damage.
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