LG WM3670HWA how to clean the water inlet filters
Periodically, more often with hard water, and when IE appears or the washer fills poorly.
You need
- Toothbrush
- White vinegar or lime scale remover
Steps
WARNING
Unplug the power cord and turn off the faucets before cleaning. Failure to do so may cause electric shock. Do not use the washing machine without the inlet filters. If you use the washing machine without the inlet filters it will cause leaks and malfunction.
Marked WARNING by the manufacturer Source: Maintenance: Cleaning the Water Inlet Filters, p. 32
- Press Power to turn the washer off and pull out the plug.
- Turn off the faucets that supply the washer.
- Unscrew the water lines from the inlets on the back of the washer.
- Pull out the inlet filters.
- Remove debris such as rust, sand or grit. Soak the filters in white vinegar or lime scale remover, or brush them with a toothbrush, then rinse thoroughly.
- Press the filters back into place and reattach the water lines.
- If a filter stays clogged or is missing, contact LG service.
Source: Maintenance: Cleaning the Water Inlet Filters Source: Maintenance: Cleaning the Water Inlet Filters, p. 32
Used for
- IE: No water is coming in, or the water pressure is low.
Other WM3670HWA procedures
- How to clean the drain pump filterWhen the washer drains slowly or shows OE, when coins or pins rattle, and periodically.
- How to run Tub CleanMonthly, when tCL appears, and for 3 weeks in a row if the washer smells musty.
- How to clean the door sealOnce a month, to prevent build-up of dirt in the door seal.
- How to clean the detergent dispenser drawerOnce a week; detergent left in the drawer builds up scale.
- How to level the washerAfter installing or moving the washer, and when it rocks, vibrates or is noisy.
Sources
- Owner's Manual, Washing Machine WM3670H*A. LG Electronics Inc. Document MFL68639738, revision ver.081KCH/BB, 89 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.