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FANUC Alarm FRCE-161 — F/S timeout error (F:%d^1)

FANUC FRCE-161 (“F/S timeout error (F:%d^1)”): The force control board or the main control board has failed. First check: 1. Turn the controller OFF, then ON again. Likely part: Main board (Main CPU board) +1 more.

Updated 2026-08-29 · LogrobotLM reference

Description

The force control board or the main control board has failed.

Remedy · Remède

1. Turn the controller OFF, then ON again. If this alarm occurs again, go to the next step. 2. Replace the force control board. If this alarm occurs again, go to the next step. 3. Replace the main board.

Part to check / replace · Pièce à contrôler / remplacer

FANUC FRCE-161 points to the hardware below — start here before ordering. · FRCE-161 met en cause l'organe ci-dessous : commencez par là.

Tap a part for every code that points to it — and verify the exact variant for your controller before ordering. · Touchez une pièce pour tous les codes qui la citent ; vérifiez la variante exacte avant commande.

Frequently asked · Questions fréquentes

What does FANUC alarm FRCE-161 mean?
FANUC FRCE-161 (“F/S timeout error (F:%d^1)”): The force control board or the main control board has failed.
How do you troubleshoot FANUC alarm FRCE-161?
1. Turn the controller OFF, then ON again. If this alarm occurs again, go to the next step. 2. Replace the force control board. If this alarm occurs again, go to the next step. 3. Replace the main board.
Which part is involved in FANUC FRCE-161?
FRCE-161 points to Main board (Main CPU board), Force control board (Force control board). Confirm the real cause against the robot backup before replacing a part.

Related codes / Codes liés

FRCE-159F/S sensor limit overflow (F:%d^1)FRCE-160F/S cable is cut (F:%d^1)FRCE-162F/S temperature data overflow (F:%d^1)FRCE-163F/S watch dog error (F:%d^1)

Same hardware involved / Même matériel en cause

FRCE-215Force control boardSRVO-001Main boardSRVO-021Main boardSRVO-022Main board

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 →