LogrobotLM

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FANUC Alarm VARS-036 — WARN CMOS memory is corrupt

FANUC VARS-036 (“WARN CMOS memory is corrupt”): CMOS memory has been destroyed First check: Controller initial start must be performed

Updated 2026-08-29 · LogrobotLM reference

Description

CMOS memory has been destroyed

Remedy · Remède

Controller initial start must be performed

Frequently asked · Questions fréquentes

What does FANUC alarm VARS-036 mean?
FANUC VARS-036 (“WARN CMOS memory is corrupt”): CMOS memory has been destroyed
How do you troubleshoot FANUC alarm VARS-036?
Controller initial start must be performed

Related codes / Codes liés

VARS-033WARN Maximum path length exceededVARS-034WARN Variable cannot be accessedVARS-037WARN Position register is lockedVARS-038WARN Cannot change CMOS/DRAM type

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 →