integrates several advanced features to enhance system reliability and performance:

The Eliwell EWCM 900 S offers a range of benefits for refrigeration professionals, including:

| Code | Meaning | Solution | | :--- | :--- | :--- | | | Probe 1 faulty / shorted | Check wiring on terminals 9-10. Replace probe (NTC 10k@25°C or PTC 1k). | | E2 | Probe 2 faulty (Evaporator) | Check terminals 11-12. Defrost may run on time-only (MDf) – energy waste. | | E3 | Probe 3 faulty | Optional probe; check wiring if configured as alarm input. | | HA | High temperature alarm | Temperature above "ALc" (High alarm) for time > "ALd". Check refrigeration circuit. | | LA | Low temperature alarm | Temperature below "ALL" (Low alarm). Possible evaporator fan stuck ON or refrigerant floodback. | | dA | Door open alarm | Digital input 1 active for > "dod" time. Close door or check door switch (magnets). | | nt | Network timeout (TelevisSystem) | Controller is addressed but lost communication with BMS. Check RS485 wiring. | | EE | EEPROM failure | Internal memory corrupt. Cycle power. If persists, replace controller. |

: The front panel features dedicated buttons to check compressor run times ("HRS") and status, which is essential for preventive maintenance. Dual Setpoints

: The front panel features a dual 3-digit display and LED indicators for compressor status, alarm conditions, and running hours. Connectivity and Integration Eliwell Ewcm 900 S Access