Technical Specifications:

• Board Type: Double-sided FR4 PCB with conformal coating
• Microcontroller: 32-bit ARM Cortex-M series MCU
• Operating Voltage: 3.3V / 5V / 12V / 230V (multi-rail)
• Communication Protocols: I²C, SPI, UART, CAN bus (appliance-dependent)
• Input Channels: Temperature sensors (NTC ×4), pressure switches (×2), door lock status, water level sensor
• Output Channels: Relay drivers (×6), TRIAC outputs (×4), solenoid valve control (×2), motor speed control (PWM)
• Operating Temperature Range: -20°C to +85°C
• Storage Temperature Range: -40°C to +125°C
• Dimensions: Approximately 280mm × 180mm × 25mm (varies by appliance variant)

Material Composition:

• Substrate: FR4 glass-reinforced epoxy laminate, TG170
• Copper Traces: 2oz electro-deposited copper, HASL finish
• Solder Mask: Green LPI (Liquid Photoimageable)
• Conformal Coating: Silicone-based, IP54 rated
• Connectors: Molex / JST automotive-grade connectors
• Relays: Omron or equivalent, 16A / 250V AC rating

Structural Features:

• Central MCU with peripheral driver circuits
• Isolated high-voltage section separated from low-voltage logic by 8mm creepage distance
• EMI filter at AC input stage
• Surge protection (MOV) on all mains input lines
• Diagnostic LED indicators (2×) on board edge
• Test points for factory service diagnostics

Working Principle: The microcontroller continuously reads sensor inputs (temperature, pressure, water level, door status), executes the programmed wash/cook cycle logic, and drives output actuators (heating elements, water valves, motors, pumps) via relay and TRIAC switching. The CAN bus interface enables communication with secondary modules (display, user interface).

Advantages:

• Multi-appliance platform — same board family used across AEG product lines
• Robust EMI immunity meeting EN 55014-1 Class B standards
• Full diagnostic capability via service mode access
• Conformal coating ensures reliability in high-humidity environments

Applicable Industries: AEG ovens, AEG cookers, AEG dishwashers, AEG washing machines

Installation Requirements:

• Must be installed in dry location within appliance chassis
• All connectors must be fully seated and locked
• Ground wire must be connected to chassis ground point
• Firmware must match appliance model variant (verified via part number suffix)

Usage Precautions:

• Handle by edges only — do not touch component side
• ESD protection mandatory during installation (wrist strap required)
• Do not apply power without all connectors attached — risks MCU damage
• Replace only with exact part number match