LG WM3670HWA how to clean the drain pump filter
When the washer drains slowly or shows OE, when coins or pins rattle, and periodically.
You need
- Shallow container
Steps
WARNING
Make sure to unplug the washer before cleaning. Failure to do so may cause electric shock. Opening the drain filter will result in water overflowing if there is water in the washer tub. Make sure to check if the water is completely drained before opening the drain filter.
Marked WARNING by the manufacturer Source: Maintenance: Cleaning the Drain Pump Filter, p. 33
- Press Power to turn the washer off and pull out the plug.
- Open the drain pump filter cover.
- Unclip the small drain hose, remove its plug and let the remaining water run into a container.
- Twist the pump filter counterclockwise and remove it.
- Clean the filter and the opening.
- Put the plug back on the drain hose and clip the hose back.
- Insert the filter fully. A missing or badly fitted filter causes leaks.
- Close the filter cover.
Source: Maintenance: Cleaning the Drain Pump Filter Source: Maintenance: Cleaning the Drain Pump Filter, p. 33
Used for
- OE: The washer drains slowly or not at all.
- Washer vibrates, thumps or is noisy
- Washer smells musty or moldy
Other WM3670HWA procedures
- How to clean the water inlet filtersPeriodically, more often with hard water, and when IE appears or the washer fills poorly.
- 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.