This document is a service manual for a Samsung P843GW/YLP washing machine, providing comprehensive information for servicing, maintenance, and operation.
Function Description
The Samsung P843GW/YLP is a front-loading washing machine designed for household use. Its primary function is to wash and spin clothes, offering various programs and settings to accommodate different fabric types and soil levels. The machine incorporates several safety devices and features to ensure safe and efficient operation. Key components include a control panel for user interaction, a tub for washing, a motor for driving the drum, and a pump for drainage.
Important Technical Specifications
Wash Type: Front Loading Type
Dimensions:
- Gross: W 680mm x D 665mm x H 890mm
- Net: W 598mm x D 550mm x H 844mm
Water Pressure: 50 kPa ~ 800 kPa
Weight:
Wash and Spin Capacity: 5.5 kg (DRY LAUNDRY)
Power Consumption:
- Washing (220 V): 180 W
- Washing (240 V): 180 W
- Washing and Heating (220 V): 2000 W
- Washing and Heating (240 V): 2400 W
- Spin (Model P843, 220-240V): 430 W
- Pumping: 34 W
Water Consumption: 49 L (STANDARD COURSE)
Spin Revolution (Model P843): 800 rpm
Main Components:
- Motor: The motor is responsible for driving the drum during washing and spinning cycles. It has a resistance value of 1.592Ω for stator(5.10), 2.094Ω for stator(5.1), and 38.8Ω for rotor(8.9). The tachometer (3.4) has a value of 0, and the protector (6.7) has a value of 0. The rated voltage is 220-240V/50Hz.
- Heater: Capacity AC 230V/2000W, located at the bottom of the tub. Its function is to raise the water temperature. Resistance value is 23-29Ω, and thermal fuse is 128°C.
- Water Supply Valve: Available in 1-way and 3-way cold water configurations.
- Hot water valve (1 way): 5 L/min, resistance 4.3 kΩ, power consumption AC 220V ~ 240V 50/60Hz.
- Cold water valve (3 way): V1: 2 L/min, V2: 10 L/min, V3: 4.5 L/min. All have a resistance of 4.2 kΩ.
- Usable water pressure: 0.5 ~ 8 kgf/cm².
- Shock Absorber and Buffer Spring: Equipped with 2 shock absorbers with 8±2kg capacity and 2 buffer springs. These are placed on the right and left of the upper side of the outside case to dampen vibration.
- Assy-Tub Back: Inner-bearing(A) Ø 20, Out-bearing(B) Ø 17, Oil-seal(C) Ø 24.3.
- Assy-Drum: (A) Ø 20, (B) Ø 17, (C) Ø 25.
- Assy-Pump Drain: Capacity AC 230V 34W, location Front Bottom(R), resistance 15Ω ~ 18Ω.
Usage Features
Control Panel: The washing machine features a user-friendly control panel with a detergent dispenser, display panel, program select button, baby program button, spin selection button, option button, start/pause button, and On/Off button.
- Detergent Dispenser: For adding detergent.
- Display Panel: Shows current cycle and error messages. Program indicators blink during execution.
- Program Select Button: Allows selection from six available wash programs: Cotton, Coloureds, Synthetics, Delicates, Wool, Quick, Rinse+Spin, and Spin.
- Baby Program Button: Selects one of three available Baby programs: Cotton, Colour, or Delicate.
- Spin Selection Button: Cycles through available spin speed options: no spin, 600, 800, 1000 rpm (for R1043) and no spin, 600, 800 rpm (for R843).
- Option Button: Cycles through partial wash options: Prewash, Rinse, Rinse Hold. Prewash is only available with washing cotton, synthetic, or delicate.
- Temperature Selection Button: Allows selection of water temperature (cold, 40°C, 60°C, and 95°C).
- Start/Pause Button: To start and pause programs.
- On/Off Button: To turn the machine on or off. If the machine is left on for longer than 10 minutes without any buttons being touched, it powers off automatically.
- Child Lock Function: Pressing Spin+Option buttons for 2 seconds activates/deactivates the child lock, preventing unintended changes to settings.
Main Functions:
- Auto Power S/W Off Function: Automatically switches power off if no button is pressed for 10 minutes after selecting a function, or if the course button is not re-selected.
- Door Open Function: The door can be opened if the operating cycle is halted and no error melody is playing.
- Rinse Hold Function: If selected, the machine does not drain water after the last rinse.
- No Spin Function: If selected, the machine finishes after the last rinse.
- Pre-washing Function: Allows pre-washing for cotton, coloreds, synthetics, delicates, and baby cotton. Water level/reverse time is the same as the selected course. Pre-washing takes about 15 minutes.
- Rinse+ Function: This function practices rinse process one more time.
- Power-out Compensation Function: In case of power outage, the machine stores current process data to EEPROM and resumes from where it left off once power is restored.
- Fuzzy Washing Function (Weight-Sensing): Automatically adjusts water level and supplementary water supply based on the weight of the laundry.
- Bubble-detecting Function: Detects bubbles during washing and dehydrating. If bubbles are detected, the machine performs additional rinsing and bubble-removing cycles.
- Unbalance Detecting & Laundry Balance Positioning System: During the hydrating process and reversal rotation, the system detects unbalance and adjusts drum rotation to balance the laundry.
- R.P.M Control: The motor enables magnetic flux generation proportional to r.p.m, controlled by the coil sensor and MICOM.
Setting Up the Wash Machine:
- Removing Safety Device: Before use, remove 5 safety device bolts and plug the 5 holes with caps.
- Installing on Leveled Place: Adjust the 4 adjustment legs to ensure the machine is level.
- Door Opening Dimension: The door opens vertically, with a distance of 950mm between the door and the rear side. The maximum door angle is 130°.
Maintenance Features
Safety Devices:
- Balancing Device (ASSY-Main PCB): Detects unbalance and adjusts the laundry load to prevent noises and vibrations.
- Anti-over Water Supply Device: Prevents over-supply of water.
- Temperature-regulating Device (Thermistor): Prevents over-heating by sensing the temperature of the machine and helping the wash machine to work at the temperature given by users.
- Overheating-controlling System: Prevents overheating by cutting off power supply if the thermistor detects abnormal conditions.
- Delicate Clothing Safeguard Function (ASSY-Main PCB): Protects delicate clothing by sensing the temperature inside the washing tub and adjusting the wash course if the temperature rises over 50°C.
Trouble Diagnosis:
The manual provides a detailed trouble diagnosis section to help identify and resolve common issues.
- Power Not Supplied: Check PCB connector, voltage, power supply plug, noise filter, transformer, and fuse.
- Water Not Supplied: Check door open button, water supply valve, water pressure switch, and connection/operation of pressure switch.
- Wash Does Not Start Though Water Supply is Stopped: Check pressure switch, hose bent, water level switch, and PCB.
- Drum Does Not Rotate During Washing: Check belt, motor winding, motor protector, and PCB.
- Drum Rotates by One Direction During Washing: Check PCB and inversion relay.
- Drainage Problem: Check drainage hose, drain filter, pump, and PCB.
- Dehydration Problem: Check laundry unbalance and start again.
- Abnormal Noise During Spin: Check pulley, motor, transport safety device, and installation level.
- Leak Breaker or Current/Leak Breaker is Down During Washing: Check leak breaker, earth connection, current of leak breaker, rated capacity, current of washing machine, and water heater.
- Heating Not Executed: Check water heater, thermistor, and PCB.
Error Functions: The machine displays error codes (E1-E12) for various issues such as water supply, drain, water S/W, door open, unbalance, water heater, ASSY-pressure S/W, abnormal water temperature, tacho, motor triac short, and thermistor errors. Each error code has a specific cause and recommended action.
PCB Checking: Detailed flowcharts and circuit diagrams are provided for checking the power source, reset part, interrupt part, oscillator, buzzer, driving part, and motor driving part of the PCB.
Test Mode: A driving compartment test mode is available to check the functionality of various components. By holding down specific buttons (1 and 2) and then pressing button 3, the machine enters test mode, allowing sequential testing of the pre valve, cold valve, pump motor, motor left/right, and heater relay.
Assembly and Disassembly: The manual includes instructions for disassembling and assembling key components such as the ASSY-Y-COVER TOP, FRAME FRONT, BELT, MOTOR, and RELAY Housing. It also lists the necessary tools for disassembly and assembly, including box drivers, double-ended spanners, vice pliers, and general tools.
Exploded Views: Exploded diagrams are provided for the TOP (FRONT), TUB, and CASE, along with a parts list detailing each component's code, description, specification, and quantity.
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