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 →

FANUC Alarm SEAL-221 — WARN Bubble detected (E…)

Manufacturer wording — WARN Bubble detected (E%d)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC SEAL-221 (“WARN Bubble detected (E…)”): A significant bubble was dispensed with the material during the job. First check: Make sure any new material is loaded properly into the supply pump.

Updated 2026-09-17 · LogrobotLM reference

Description

A significant bubble was dispensed with the material during the job. This is usually caused by improper loading of new material. NOTE: This will often poor quality sealing. Examine the finished part for any gaps in the sealant bead.

Remedy

Make sure any new material is loaded properly into the supply pump. Make sure all excess air has been drained off before using any new material.

Related codes

SEAL-219WARN Volume strobe timeout (E…)SEAL-220WARN Volume out of range (E…)SEAL-222WARN Dispenser not ON (E…)SEAL-223WARN Dispenser not in AUTO (E…)

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 →