The is more than a binder of technical diagrams; it is the roadmap to efficient, safe, and precise combustion control. Whether you are commissioning a new burner retrofit, troubleshooting an E5 error, or optimizing the fuel-air ratio for lower NOx emissions, the manual is your first and most reliable tool.
| Error Code | Meaning | Manual Solution | |------------|---------|----------------| | | Sensor break or short circuit | Check Pt100 wiring (Terminals 6,7). Measure resistance: 0°C = 100Ω, 100°C = 138.5Ω. | | E2 | Setpoint input (4–20 mA) broken | Check loop power. If using external supply, ensure negative is linked to common (Terminal 11). | | E5 | Feedback potentiometer error | In Sdc mode, verify that the resistance between terminals 14 and 12 sweeps from 0 to 1000Ω smoothly. | | E7 | Actuator not reaching end position | Readjust mechanical stops or increase tOr (running time) parameter to match actuator speed. | | E9 | Internal RAM failure | Auto-resets after power cycle. If persistent, return unit to Siemens. | siemens rwf40 manual
Can be configured to switch between two distinct burner stages based on adjustable thresholds. The is more than a binder of technical