Code 700135: Mist collector not selected
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Mist collector not selected 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
In the machining program, the function M265 is output, which monitors whether the exhaust fan is activated. Feed Stop 1. Select the required “operating condition“ by pressing the respective key. 2. Check whether the option is set for the corresponding function. 3. Once the malfunction has been remedied, press [FEED START] key. Message is cleared and the machining program can be continued. These messages will appear immediately after output of the Mfunction, even when the respective option has been deactivated (PLC – machine data). In automatic mode, the "coolant" or "minimal lubrication" was activated, but the "exhaust fan“ is not switched on. Cause 1: Cause 2: Error messages Suction system Mist collector not selected Machining with oil: Machining stop when traversing in rapid feed [G0]. (Spindle Stop/Feed Stop and coolant off). Machining with water: Machining stop after program end. (Spindle Stop/Feed Stop and coolant off). (Program end with M02, M30 or change work area / table side) 1. Switch on the exhaust fan. 2. Press [FEED START] or [CYCLE START] key at the same time. 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 700135 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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