Code 700016: Control cabinet cooler malfunction
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Control cabinet cooler malfunction 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
Thermal contact in the control cabinet cooler has responded. The PLC input signal "Control cabinet cooler malfunction" is not registered. The error has the following effect as soon as the end of the machining program has been reached: Feed Stop No axis movements possible. "Spindle Stop" Tool spindle is stopped. Speed no longer possible. For MT series: Channel-specific "Read-in stop" after pulling bar call ( M450 ) or workpiece counting pulse ( M60 ) on this channel. The other channel, respectively, continues to run until the next tool change or rapid feed ( G0 ). 1. Check electric cabinet cooler actuation. 2. Check the thermal contact and PLC input signal "Control cabinet cooler malfunction". 3. Press [FEED START]. Machining program is continued until the next end of program. If needed, the program can be continued by acknowledging the error with the key [CYCLE START] (but only until the next end of program). The operator will be reminded of this at every end of program. Malfunction can be remedied at an appropriate point in time.
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 700016 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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