LG DLEX3900W unpleasant odor from the dryer

Cause 1 of 2The dryer is new. The rubber inside gives off an odor. Source: Troubleshooting: Odors, p. 55

First checkRun several cycles. The odor disappears.

Causes and checks

  1. The dryer is new. The rubber inside gives off an odor. Source: Troubleshooting: Odors, p. 55

    1. Run several cycles. The odor disappears.
  2. Excess detergent in the wash, clothes left in the washer or dryer after the cycle, or a dirty lint filter. Source: Troubleshooting: Odors, p. 55

    1. Use no more than the recommended amount of detergent, unload promptly and keep the lint filters clean. Let a cleaned lint filter dry completely before use.

Service

If the checks above do not clear it, contact LG Customer Information Center: 1-800-243-0000, lg.com/us/support. United States (Canada: 1-888-542-2623). Source: Limited Warranty: To Obtain Warranty Service, pp. 58, 64

Other DLEX3900W problems

Sources

  1. Owner's Manual, Dryer DL*X390**. LG Electronics Inc. Document MFL70442672, revision Rev.00, 2024-02-26, 64 pages, en-US. gscs-b2c.lge.com. Listed on the manufacturer's support page. Retrieved 12 November 2026.
  2. Owner's Manual, Dryer DL*X400** / DL*X408**. LG Electronics Inc. Document MFL70442676, revision Rev.02, 2026-06-25, 60 pages, en-US. gscs-b2c.lge.com. Listed on the manufacturer's support page. Retrieved 12 November 2026.

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

Applies to
DLEX3900W (variants DLEX3900B; DLGX3901W; DLGX3901B), DLEX4000W (variants DLEX4000B; DLGX4001W). United States and Canada.
Source
Owner's Manual, Dryer DL*X390**, MFL70442672 revision Rev.00, 2024-02-26; Owner's Manual, Dryer DL*X400** / DL*X408**, MFL70442676 revision Rev.02, 2026-06-25
Last verified
Handbook
LG DLEX3900W and DLEX4000W steam dryers in Dryers; all LG handbooks