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FANUC Alarm SYST-165 — PAUSE TP intermittent communication error

Error
Hardware
teach pendant
Controllers
R-30iA (this generation only)
FANUC class
PAUSE

FANUC SYST-165 (“PAUSE TP intermittent communication error”): Intermittent errors happened on the communication with the teach pendant. First check: Check to determine if there is any source of electrical noise. Likely part: Teach pendant (Teach pendant).

Updated 2026-10-22 · LogrobotLM reference

Description

Intermittent errors happened on the communication with the teach pendant.

Remedy

Check to determine if there is any source of electrical noise. Check that the teach pendant is working properly. Replace the teach pendant if necessary.

Field diagnosis

Intermittent errors on the link with the teach pendant, enough to pause the program.

What to check

  • Look for a source of electrical noise; check the teach pendant and replace it if necessary.
  • Note: A teach pendant cable running close to a welding cable is a classic.

Part to check / replace

FANUC SYST-165 points to the hardware below — start here before ordering.

Tap a part for every code that points to it — and verify the exact variant for your controller before ordering.

Related codes

Same hardware involved

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 →