Error codeE0
CPU failure (control module) occurs due to power supply +24 VDC OFF, controller button ▲ / ▼ / S button OFF, or CPU failure (cost relay). The manual's first action is: “Turn the power off and on again”
- Model
- SMC IZT40, IZT41/42 series
- Display shows
- CPU failure (control module) (E0)
- Type
- Error code
- Source
- Manual p. 40
What E0 means
CPU failure (control module) p. 59
Common causes
- Power supply +24 VDC OFF p. 59
- Controller button ▲ / ▼ / S button OFF p. 59
- CPU failure (cost relay) p. 59
- When CPU operates abnormally due to noise etc. p. 59
- When the CH is switched during operation. p. 59
- Controller CPU problem (applicable product model: IZT40, IZT41, IZT42). If the controller CPU operation is abnormal due to electrical noise, or when the CH is switched during operation. p. 59
- contamination, wear or damage to the emitters is detected p. 59
What to do
- Turn the power off and on again p. 59
- The abnormal signal is OFF (ON when normal. IZTC40 does not have an output signal), and all CH LEDs (green) are ON and all ION/HV LEDs are flashing (red) and the error code "E0" is displayed in frequency display flashing red. p. 59
- The NDL LED (green) for the bar with the problem (high voltage power supply module) is ON to indicate that cleaning or replacement of the emitters needs to be performed. p. 59
If E0 is still not resolved
The manual gives no further instruction for this code. Open the code table in the PDF or contact SMC service.
This page summarises what the manufacturer’s manual says about E0; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with SMC. Found a mistake? Report an error.