LG WM3600HWA how to clean the water inlet filters

When IE appears, the washer fills poorly, or the water is hard.

You need

Steps

WARNING

Operating the washer with these filters removed could cause a valve to open continuously, resulting in flooding and/or property damage.

Marked WARNING by the manufacturer Source: Maintenance: Cleaning the Water Inlet Filters, p. 38

  1. Turn off the washer and unplug the power cord.
  2. Turn off the hot and cold water faucets.
  3. Unscrew the hot and cold water hoses from the back of the washer.
CAUTION

If you use the washer in an area with hard water, the inlet filter may clog due to lime buildup and require more frequent cleaning.

Marked CAUTION by the manufacturer Source: Maintenance: Cleaning the Water Inlet Filters, p. 38

  1. Pull the filters out of the water valves with pliers.
  2. Remove foreign objects and soak the filters in white vinegar or a lime scale remover. Follow the remover maker's instructions and take care not to damage the filters.
  3. Rinse the filters thoroughly and press them back into place.
  4. Flush each hose by running several gallons of water through it into a bucket or drain, preferably with the faucet wide open, then reattach the hoses.

Source: Maintenance: Cleaning the Water Inlet Filters Source: Maintenance: Cleaning the Water Inlet Filters, pp. 38-39

Used for

Other WM3600HWA procedures

Sources

  1. Owner's Manual, Washing Machine WM3600H*A. LG Electronics Inc. Document MFL70701250, revision Rev.04, 2026-01-23, 60 pages, en-US. gscs-b2c.lge.com. Listed on the manufacturer's support page. Retrieved 12 November 2026.
  2. Owner's Manual, Washing Machine WM4200H*A / WM4100H*A. LG Electronics Inc. Document MFL71728905, revision Rev.05, 2025-11-20, 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
WM3600HWA (variant WM3600HVA), WM4200HBA (variant WM4200HWA). United States and Canada.
Source
Owner's Manual, Washing Machine WM3600H*A, MFL70701250 revision Rev.04, 2026-01-23; Owner's Manual, Washing Machine WM4200H*A / WM4100H*A, MFL71728905 revision Rev.05, 2025-11-20
Last verified
Handbook
LG WM3600HWA and WM4200HBA front-load washers in Washers; all LG handbooks