Code 14080: [Channel %1: ] Block %2 jump destination %3 not found
Issue Description & Safety Warning
The Siemens SINUMERIK 840D CNC has triggered a critical [Channel %1: ] Block %2 jump destination %3 not found 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
Parameters: %1 = Channel number %2 = Block number, label %3 = Jump destination Definitions: In conditional and unconditional jumps, the jump des tination within the program must be a block with a label (symbolic name instead of block number). If no jump destination has been found with the given label when searching in the programmed direction, an alarm is output. For parameterizable returns with RET to block numbe r or label, the jump destination within the program must be a block with the block number or label (symbolic name instead of block number). For returns over several levels (parameter 2), the jump destination must be a block within the program level you jumped to. For returns with a string as return destination, the search string must be a name known in the control and the search string must be preceded in the block by a block number and/or a label only. Reaction: Correction block is reorganized. Interface signals are set. Alarm display. Remedy: Check NC part program for the following possible errors: 1. Check whether the target designat ion is identical with the label. 2. Is the jump direction correct? 3. Has the label been terminated with a colon? Program Continuation: Clear alarm with NC ST ART or RESET key and continue the program.
Source: SINUMERIK 840D sl / 840Di sl / SINAMICS S120 Diagnostics Manual (DAsl, 03/2009)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Siemens SINUMERIK 840D CNC Alarms
Siemens controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code 14080 on the SINUMERIK 840D CNC identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Siemens's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 4014 Siemens SINUMERIK 840D CNC codes.
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