Code 701443: Mist collector water level minimum
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Mist collector water level minimum alarm. Immediate attention from a qualified operator or maintenance technician is required to prevent secondary damage to the equipment or spoiled parts during the manufacturing cycle. Always ensure standard safety and LOTO procedures are followed before accessing electrical cabinets.
Official Troubleshooting Steps
"Water level MIN exhaust fan" float switch on the exhaust fan signalled "Minimum" (signal status (0)) for longer than 15 seconds. Fresh water supply has not been established. Error messages Suction system Mist collector water level minimum The „Fresh water“ valve is switched on after the float switch reacts. The error message appears as soon as the float switch signals „Minimum“ for longer than 15 seconds. Feed Stop and switch off the exhaust fan as soon as one of the following states occurs: Tool change ( M06 ) Z-axis at position 0 End of program / work area change 1. Check whether the fresh water supply to the mist collector (exhaust fan) has been established. 2. Check the PLC output and the „Fresh water“ valve actuation. 3. Check the „Water level MIN exhaust fan“ float switch on the exhaust fan and the associated PLC input signal. 4. As soon as the malfunction has been remedied, press [FEED START] or [CYCLE START]: Message is cleared.
Source: CHIRON Error Message Overview, all series (Siemens control, V2.0.6, 2012)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Chiron Siemens-Control CNC Alarms
Chiron controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code 701443 on the Siemens-Control CNC identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Chiron's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 545 Chiron Siemens-Control CNC codes.
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