This document is a service manual for an LG washing machine, specifically for model FH2D7RD*. It provides comprehensive information for LG technicians to diagnose troubles and perform service correctly.
Function Description
The LG FH2D7RD* washing machine is a front-load washer-dryer combo with advanced features designed for efficient and thorough laundry care. It incorporates a Direct Drive System, where a brushless DC motor directly drives the drum without a belt or pulley, enhancing durability and reducing noise. The 6 Motion technology allows the washer to perform various drum actions, or combinations thereof, tailored to specific wash programs, improving wash performance.
Key operational features include:
- Turbo Wash: Utilizes Twin Spray and optimization to save time without compromising performance.
- Water Circulation: Sprays detergent solution and water repeatedly onto the load, ensuring quicker soaking and easier removal of suds during rinse cycles, optimizing water and detergent use.
- Tilted Drum and Extra Large Door Opening: Facilitates easier loading and unloading of clothes.
- Embossing Drum & Waved Lifter: Enhances washing performance and reduces clothes damage.
- Automatic Wash Load Detection: Automatically detects the load size and optimizes washing time.
- Built-in Heater: Maintains optimal water temperature for selected cycles.
- Child Lock: Prevents unintended operation by disabling all buttons except the Power button.
- NFC (Tag On Function): Allows for course download and diagnosis via NFC-equipped smartphones (Android OS only).
The washer also features a Neuro Fuzzy Washing Time Optimization system, which determines the optimal washing, rinsing, and spin times based on water temperature, selected washing temperature, and load size to achieve the best washing performance. A pressure sensor is integrated for precise Water Level Control, stopping water supply at preset levels and ensuring proper drainage before spinning. The Door Control mechanism allows the door to be opened when not in operation, unlocks after 5 minutes in case of power failure, and locks during specific operational conditions (e.g., water level below 22.9 kHz or tub temperature above 45°C).
Important Technical Specifications
Model: FH2D7RD7
Color: Stainless Silver
Power Supply: 220V / 60Hz
Product Weight: 81 kg
Electric Power Consumption:
- Washing: 190 W
- Wash Heater: 2000 W
- Drying: 2100 W
Revolution Speed:
- Wash: 46 rpm
- Spin: Extra Low / Low / Medium / High / Extra High (5 speeds)
Cycles: 12
Wash/Rinse Temperatures: 5 settings
Spin Speeds: 5 settings
Options: Turbowash, Time Delay, Tub Clean, Dry, Add Load, Time Dry, Child Lock
Water Circulation: Incorporated
Operational Water Pressure: 14.5-145 psi (100-1000 kPa)
Control Type: Electronic
Wash/Dry Capacity: 14 kg / 8 kg
Dimensions: 645 mm (W) X 770 mm (D) X 940 mm (H)
Delay Wash: Up to 19 hours
Door Switch Type: PTC + Solenoid
Water Level: 5 steps
Laundry Load Sensing: Incorporated
Error Diagnosis: Incorporated
Auto Power Off: Incorporated
Child Lock: Incorporated
NFC: Tag on Function
Usage Features
The washing machine offers a user-friendly interface with a Cycle Selector knob to choose from 12 different wash programs, including Cotton, Baby Care, Hygiene, Sports Wear, Wool, Refresh, Speed Wash, Single Shirt Dry, Bedding Care, Duvet, Rinse+Spin, and Download Cycle. The Power button turns the appliance on/off, and the Start/Pause button initiates or pauses cycles.
The EST.TIME REMAINING display shows the estimated time left in a cycle or an error code if detected.
Option buttons provide additional functionalities:
- Turbo Wash: For faster washing.
- Time Delay: Delays the start of a cycle for 3 to 19 hours.
- Tub Clean: Sanitizes the drum to remove bacteria.
- Dry: Activates the drying function for wet laundry.
- Add Load: Allows adding or removing items during a cycle.
- Time Dry: Sets drying time in 30-minute increments (30-150 minutes).
- Wash Button: Offers options like Pre Wash (adds 16 minutes of prewashing), Intensive (for heavily soiled laundry), Normal, Light, and Soak.
- Rinse and Spin Button: Adjusts rinse cycles and spin speeds.
- Temp. Button: Selects water temperature based on load type.
Maintenance Features
The manual provides detailed Troubleshooting and Error Diagnosis information for technicians.
QC Test Mode allows technicians to cycle through various test modes to check functions like motor rotation (clockwise/counterclockwise), spin speeds, inlet valve operation, water level frequency, and drying fan/heater operation.
Error Display codes help identify specific issues:
- IE (Water Inlet Error): Indicates insufficient water supply or failure to reach preset water levels.
- UE (Imbalance Error): Suggests an unbalanced load or tilted appliance.
- OE (Drain Error): Points to issues with the drain pump or clogged filter.
- FE (Over Flow Error): Indicates water overflowing, triggering automatic drain pump operation.
- PE (Pressure Sensor Error): Signals a faulty pressure sensor switch.
- DE (Door Open Error): Indicates the door is not closed properly or issues with the door switch assembly.
- TE (Heating Error): Points to a faulty thermistor.
- CE (Over Current Error): Suggests a main PWB assembly issue or short-circuited stator winding.
- LE (Locked Motor Error): Indicates motor harness connection issues, cut harness, or defective hall sensor.
- DHE (Dry Heater Error): Points to a faulty dry heater, connection issues, or a faulty dry fan motor.
- PS (Pressure Sensor Error): (Likely a duplicate or related to PE)
Smart Diagnosis™ is a troubleshooting feature that allows the appliance to transmit diagnostic tones to a call center via a smartphone, aiding in remote problem identification.
The manual also includes Disassembly Instructions for various components like the control panel, cabinet cover, dispenser assembly, noise filter, door, and door lock switch assembly, facilitating repairs and part replacements. Exploded views of the cabinet & control panel, drum & tub, dispenser, and dryer assemblies are provided for easy identification of parts.
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