Control and Display Board for Zanussi ZWH/S AZURRO DL Water Heater (ELS1-CASE06-D12)
Short Description
The control and display module is designed for flat electric water heaters of the Zanussi AZURRO DL series (30, 50, 80, and 100-liter capacity). It allows setting the heating temperature, switching operating modes, and monitoring current parameters on a digital LED display. The module directly replaces a faulty original board without any modifications — connecting via the stock ribbon cable and socket. Exact compatibility is verified by the original marking ELS1-CASE06-D12 printed on the PCB surface.
Price: 1550 UAH.
Technical Specifications — ELS1-CASE06-D12
| Parameter | Specification |
|---|---|
| PCB Marking | ELS1-CASE06-D12 |
| Board Dimensions | 85 × 50 mm |
| Base Material | CEM-1, 94V-0 (flame-retardant) |
| Display Type | 7-segment LED Display |
| Main Connector | CON1 — 6 Pin (LO / HI / FCK / TX / GND / +5V) |
| Auxiliary Connector | CN1 — 2 Pin (+5V) |
| Control Elements | 2 Capacitive Touch Sensors (KEY1, KEY3) + 50 kΩ Linear Potentiometer (VR1 B503J) |
| Operating Voltage | +5V DC |
| Certifications | RoHS, REACH Compliant |
| Quality Control Testing | ICT, FCT, QC1, QC2 |
Detailed Description and Structural Features
Operating Principle and Functionality
The ELS1-CASE06-D12 module operates as the user interface for the water heater, serving as the bridge between the user and the power electronics. The board registers user inputs, displays temperature and mode parameters, and transmits command data to the main power board via serial communication (TX line on connector CON1).
Component Structure
The board features a dual-section black 7-segment LED display:
- Upper Section: Displays active operating modes accompanied by status icons: power, eco, BSS, step, and a snowflake icon (anti-freeze protection mode keeping water temperature at +5...+7°C to prevent tank damage during cold weather).
- Lower Section: A two-digit display showing set temperature in °C or timer hours.
Control inputs include two spring-type capacitive touch sensors (KEY1 and KEY3) that sense touch through the front casing, and a potentiometer VR1 (B503J, 50 kΩ) for smooth temperature adjustment. The unit connects to the main power board via a 6-pin CON1 connector using a flat flexible cable. Circuit stability is maintained by a quartz crystal resonator, while electrolytic capacitors ensure clean +5V power filtering.
Target Application
Engineered for professional appliance repair technicians and service centers. Installation is straightforward for DIY repairs as well: the board plugs directly into factory connectors without soldering or housing modifications.
Key Benefits
- Factory-assembled turnkey component — no firmware flashing or calibration required.
- 100% plug-and-play fitment with factory mount points and connectors.
- Undergoes rigorous factory quality assurance (ICT, FCT, QC1, QC2).
- Compliant with international RoHS and REACH environmental standards.
Model Compatibility
Fully compatible with the following Zanussi electric storage water heater models:
- Zanussi ZWH/S 30 AZURRO DL
- Zanussi ZWH/S 50 AZURRO DL
- Zanussi ZWH/S 80 AZURRO DL
- Zanussi ZWH/S 100 AZURRO DL
Notice: Always confirm compatibility by checking for the ELS1-CASE06-D12 marking on your original control board prior to purchase.
