Code MEMO-169: Clear failed for %s
Issue Description & Safety Warning
The Fanuc R-30i Series Robot Controller has triggered a critical Clear failed for %s 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
Cause: The program that you attempted to clear with the PROG_CLEAR builtin failed. Remedy: Refer to the remedy on the cause code. Typically the cause of the error is that the program is selected. In this case, unselect the program via the SELECT_TPE builtin before executing the PROG_CLEAR builtin.
Source: FANUC Robot R-30iA Alarm Code List Operator's Manual
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Fanuc R-30i Series Robot Controller Alarms
Fanuc controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code MEMO-169 on the R-30i Series Robot Controller identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Fanuc's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 6553 Fanuc R-30i Series Robot Controller codes.
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