LogrobotLM

LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free → · Le diagnostic IA qui lit la sauvegarde de votre robot, sans rien téléverser.

FANUC Alarm PAIN-503 — WARN %sFlow rate avg. error excessive

FANUC PAIN-503 (“WARN %sFlow rate avg. error excessive”): Comparisons of how far the measured flow rate is from the setpoint had too large of a result. First check: Check, clean and possibly replace the air cap. Likely part: Transducer (Transducer) +1 more.

Updated 2026-08-29 · LogrobotLM reference

Description

Comparisons of how far the measured flow rate is from the setpoint had too large of a result. The size of the error between measured flow and setpoint that will this alarm is controlled by the Max. error from setpoint parameter. Possible s are: clogged air cap, sticking I/P transducer, bad air booster or pinching air lines.

Remedy · Remède

Check, clean and possibly replace the air cap. Check for oscillating air pressure on the output of the I/P transducer. If found replace the transducer. Check for a large loss of air supply pressure or pinched air lines. If the alarm occurs on both Fan Air and Atomizing Air or many robots then possibly increase the Max. error from setpoint parameter.

Part to check / replace · Pièce à contrôler / remplacer

FANUC PAIN-503 points to the hardware below — start here before ordering. · PAIN-503 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 PAIN-503 mean?
FANUC PAIN-503 (“WARN %sFlow rate avg. error excessive”): Comparisons of how far the measured flow rate is from the setpoint had too large of a result. The size of the error between measured flow and setpoint that will this alarm is controlled by the Max. error from setpoint parameter. Possible s are: clogged air…
How do you troubleshoot FANUC alarm PAIN-503?
Check, clean and possibly replace the air cap. Check for oscillating air pressure on the output of the I/P transducer. If found replace the transducer. Check for a large loss of air supply pressure or pinched air lines. If the alarm occurs on both Fan Air and Atomizing Air or many robots then possibly increase the…
Which part is involved in FANUC PAIN-503?
PAIN-503 points to Transducer (Transducer), Air cap (Air cap (paint atomizer)). Confirm the real cause against the robot backup before replacing a part.

Related codes / Codes liés

PAIN-501WARN %sCal. table adapted in tolerancePAIN-502WARN %sDyn. yield > %% tolerance bandPAIN-504WARN %sCalibration successfulPAIN-505WARN %sCalibration aborted

Same hardware involved / Même matériel en cause

PAIN-500Air capPAIN-510Air capPAIN-514Air capPAIN-520Air cap

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 →