Model Handbook

LG LDFN4542S cycle does not start and the time flashes

Cause 1 of 2The door was not closed within 4 seconds of pressing Start, or the door was closed without pressing Start. A tone sounds and the white time LED flashes. Source: Operation: Quick Start, p. 24

First checkPress Start, then close the door within 4 seconds.

Causes and checks

  1. The door was not closed within 4 seconds of pressing Start, or the door was closed without pressing Start. A tone sounds and the white time LED flashes. Source: Operation: Quick Start, p. 24

    1. Press Start, then close the door within 4 seconds.
    2. Or close the door first, then press Start.

  2. Control Lock is on (CL in the display). Source: Control Panel: Control Lock, p. 25

    1. Hold Half Load and Energy Saver together for 3 seconds to unlock the controls.

Service

If the checks above do not clear it, contact LG Electronics Customer Information Center: 1-800-243-0000, lg.com/us/support. United States (Canada: 1-888-542-2623). Source: Troubleshooting: Error Messages, p. 38

Other LDFN4542S problems

Sources

  1. Owner's Manual, Dishwasher LDF554 and LDFN454 models (abridged edition). LG Electronics Inc. Document MFL69261755, revision Rev.00, 2023-09-04, 48 pages, en-US. gscs-b2c.lge.com. Listed on the manufacturer's support page. Retrieved 13 November 2026.

Page numbers are the numbers printed in the manual. Where this page and the manual differ, follow the manual.

Applies to
LDFN4542S (variant LDFN4542S.ASSESNA), LDFN4542W (variant LDFN4542W.ABWESNA), LDFN4542B (variant LDFN4542B.ABPESNA), LDFN4542D (variant LDFN4542D.ABDESNA). United States and Canada.
Source
Owner's Manual, Dishwasher LDF554 and LDFN454 models (abridged edition), MFL69261755 revision Rev.00, 2023-09-04
Last verified
Handbook
LG LDFN4542S dishwasher in Dishwashers; all LG handbooks