FANUC Alarm SPOT-042 — WARN Stud Welder Time Out Fault
FANUC SPOT-042 (“WARN Stud Welder Time Out Fault”): The robot detected a Stud Welder Time Out Fault from the current controller during a weld. First check: Once the robot is paused, carefully pry the gun and the stud apart, then reset fault on weld controller and resume the program.
Updated 2026-08-29 · LogrobotLM reference
Description
The robot detected a Stud Welder Time Out Fault from the current controller during a weld. This fault occurrs when the controller does not detect a completed weld or a bad weld after the timer times out. Usually means that the stud is welded to both the target and the gun.
Remedy · Remède
Once the robot is paused, carefully pry the gun and the stud apart, then reset fault on weld controller and resume the program.
Frequently asked · Questions fréquentes
- What does FANUC alarm SPOT-042 mean?
- FANUC SPOT-042 (“WARN Stud Welder Time Out Fault”): The robot detected a Stud Welder Time Out Fault from the current controller during a weld. This fault occurrs when the controller does not detect a completed weld or a bad weld after the timer times out. Usually means that the stud is welded to both the target and…
- How do you troubleshoot FANUC alarm SPOT-042?
- Once the robot is paused, carefully pry the gun and the stud apart, then reset fault on weld controller and resume the program.
Related codes / Codes liés
Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →