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FANUC Alarm APSH-174 — WARN SCR overtemp detected

FANUC APSH-174 (“WARN SCR overtemp detected”): An SCR overtemp signal has been received. First check: Check the SCR for overheating.

Updated 2026-08-29 · LogrobotLM reference

Description

An SCR overtemp signal has been received.

Remedy · Remède

Check the SCR for overheating.

Frequently asked · Questions fréquentes

What does FANUC alarm APSH-174 mean?
FANUC APSH-174 (“WARN SCR overtemp detected”): An SCR overtemp signal has been received.
How do you troubleshoot FANUC alarm APSH-174?
Check the SCR for overheating.

Related codes / Codes liés

APSH-170WARN Check Nest/Changer InputsAPSH-171HOME_IO has not completed runningAPSH-175WARN Req. Press. Not mapped for WC:%sAPSH-176WARN GIN For Weld Press. Not mapped for WC:%s

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 →