This document is a service manual for the Electrolux OVC3000 Power Board, designed for built-in ovens and cookers. It provides a comprehensive overview of the device, its functionalities, technical specifications, and maintenance procedures.
Function Description
The OVC3000 Power Board is the central electronic control unit for Electrolux ovens and cookers. It manages various functions, including heating elements, small loads, and communication with the user interface (UI). The board is designed to be modular, allowing for the addition of a Food Probe Module (FPM) for enhanced functionalities like food probe control, steam generation, and microwave functions. It supports both non-pyrolytic and pyrolytic ovens, as well as microwave and steam single ovens. The OVC3000EOS is a newer version with reduced energy consumption in standby mode.
Important Technical Specifications
- Modular System: Power board OVC3000 + Food Probe Module (FPM).
- Pollution Degree: 2.
- Ambient Temperature: Max. 105°C.
- Heating Elements: Controls up to 4 heating elements (e.g., grill, ring, top, bottom).
- Small Loads: Controls 5 small loads.
- Communication: Isolated MACS communication with UI.
- Sensors:
- 1 sensor for oven cavity (PT500).
- Analog inputs for door switch and telescopic runners detection.
- NTC sensor for steam ovens (detects lack of water in the steam generator).
- Pyrolytic Functionality: Includes pyrolytic (door lock) function.
- Microwave Function: Supported.
- Power Supply: 220V / 240V.
- Relays and Triacs: Manages various relays for main heating, top/smell, grill, rear, bottom, and door lock, as well as triacs for cooling fan (low/high speed), hot air fan, and oven lamp.
- Auto Switch Off: The oven automatically shuts off if no command is set for a certain period, with time-outs varying based on set temperature (e.g., 12.5 hours for <120°C, 1.5 hours for >250°C, 4.5 hours for pyrolytic cleaning).
- FPM Configurations:
- FPM Basic: Controls external food probe.
- FPM Expanded: Controls external food probe and 2 additional loads (e.g., for steamer).
- FPM Full: Controls external food probe and 3 additional loads (e.g., for models combined with microwave).
- Food Probe: Consists of an NTC sensor in a metal casing with an insulated, temperature-resistant cable.
- Steam Actuator: Controls the thermal actuator for closing or opening the steam channel in steam ovens.
Usage Features
The OVC3000 Power Board is designed to be controlled by various user interfaces, including Avantgarde, Perfect 2, Rhea, Exagon, Vision Cooking, Omega/VCU, and Kronos 2 Update. These interfaces allow users to set cooking parameters, monitor oven status, and activate special functions. The system includes an auto switch-off feature for safety and energy saving.
Maintenance Features
The manual provides detailed information for troubleshooting and maintenance, including:
- Alarm Codes: A comprehensive list of alarm codes (Fxxx, Cxx) indicating the failure location (e.g., Oven PB failure, Oven User Interface failure, Hob failure, General failure) and specific error descriptions.
- Troubleshooting Guide: For each alarm code, potential causes and troubleshooting steps are provided. Examples include checking wiring connections, sensor faults (PT500, NTC), door lock issues, software compatibility, and power board faults.
- Component Identification: Detailed diagrams and descriptions of connectors, relays, and triacs on the power board and FPM assist in identifying components for inspection or replacement.
- Fixing Systems: Instructions for fixing the OVC3000 board and FPM using spacers on the oven chassis.
- Demo Mode: A special mode for showrooms or shops that allows full UI functionality without activating loads, useful for demonstration purposes.
- Revisions: A revision history of the manual, detailing updates to alarm codes, troubleshooting, circuit diagrams, and new power board versions (OVC3000EOS).
- EMC Shielding: For microwave ovens, the OVC3000 version includes EMC shielding to prevent electromagnetic interference.
The manual emphasizes the importance of referring to specific wiring diagrams for each appliance model due to variations in configurations. It also notes that in-service replacement of old cards with new OVC3000/OVC3000EOS boards is not possible; the new boards are for new production only.
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