FANUC Alarm SRVO-212 — SERVO Trans over heat
Error- Hardware
- fuses
- Controllers
- R-J3iB / R-30iA
- FANUC class
- SERVO
- Hardware family
- FANUC brake, fuse, robot signal and position error alarms
FANUC SRVO-212 (“SERVO Trans over heat”): The fuse on Panel PCB is blown First check: Replace fuse on 6 Panel PCB Likely part: Fuse (Fuse).
Updated 2026-10-22 · LogrobotLM reference
Description
The fuse on Panel PCB is blown
Remedy
Replace fuse on 6 Panel PCB
Field diagnosis
A panel board fuse has blown, seen by the system as a transformer overheat.
What to check
- Replace the fuse on the panel board after finding out what caused it to blow.
- Note: R-J3iB/R-30iA generation.
Part to check / replace
FANUC SRVO-212 points to the hardware below — start here before ordering.
Tap a part for every code that points to it — and verify the exact variant for your controller before ordering.
Related codes
Same hardware involved
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. How this reference is built →