Technical Specifications:

• Part Number: 15A0176-000
• Compatible Models: AEG L6FBG841, L7FBE68S, and other 6000/7000 Series machines
• Board Type: Main Control PCB (Main Board)
• Input Voltage: 230V AC (via internal power supply module)
• Output Channels:
  • Motor control (3-phase brushless inverter driver)
  • 2x Water inlet valve solenoids (cold + hot)
  • Drain pump relay
  • Heater relay (2300W max)
  • Door lock solenoid
  • Display/UI interface
• Communication Interface: I²C / UART to display module and sensor boards
• Operating Temperature Range: -10°C to +85°C
• PCB Dimensions: 280 mm x 195 mm x 25 mm (approximate)
• Connector Pins: 3 main connectors (power, motor, peripheral)
• Weight: 0.45 kg

Material Composition:

• PCB Substrate: FR-4 glass-reinforced epoxy laminate (TG170)
• Components: SMD and through-hole electronic components — microcontroller (STM32 family), triacs, relays, optocouplers, capacitors, resistors
• Conformal Coating: Silicone-based conformal coating for moisture resistance
• Connector Housing: PA66 (Nylon 66) glass-fiber reinforced

Structural Features:

• Mounting: 4 screw holes with rubber grommets for vibration isolation
• Connector System: 3 plug-in connectors — color-coded for correct installation
• LED Indicators: 2 status LEDs on board (power + fault)
• Fuse: Integrated 5A slow-blow fuse on main input

Working Principle:
The microcontroller on the PCB executes the selected wash program by controlling output relays and triacs in sequence. It receives input from the NTC temperature sensors, pressure switch (ProSense), water level sensor, door lock switch, and motor Hall-effect sensors. The motor driver stage generates 3-phase PWM signals for the brushless DC motor, adjusting frequency and voltage to control speed and direction. The triac-based heater control modulates power via phase-angle firing. All safety interlocks (door lock, overtemperature, overfill) are monitored in real-time — any fault triggers the LED indicator and halts operation.

Advantages & Highlights:

• Genuine AEG Part: Exact electrical and mechanical fit — no reprogramming required.
• Integrated Safety Logic: All factory safety functions preserved (overfill protection, motor overcurrent, heater overtemperature).
• Robust Design: Conformal coating protects against humidity and condensation inside the machine.
• Plug-and-Play Replacement: No coding or calibration needed when swapping board-for-board.

Applicable Industries / Use Cases:

• AEG authorized service centers
• Appliance repair technicians
• Washing machine refurbishment

Installation Requirements:

• Disconnect Power: Always disconnect mains power before handling the PCB.
• ESD Precaution: Use anti-static wrist strap — the microcontroller is ESD-sensitive.
• Connector Orientation: Match connector keying — forced insertion damages pins.
• Torque Specification: Mounting screws at 0.8 Nm maximum.
• Post-Installation: Run a test cycle (Cotton 60°C) to verify all functions before returning to customer.

Usage Precautions:

• Do not substitute with non-genuine boards — firmware mismatch causes program errors and safety failures.
• Do not touch component side of PCB with bare fingers — oils cause corrosion.
• If the board fails repeatedly, check for root cause (e.g., faulty door lock, water valve short) before replacing again.
• Store in anti-static bag at 10–30°C, <60% RH.