LG Washer Error Code F5

The F5 code on an LG washer indicates that the drain pump is not working properly or that water is not draining from the drum as expected. The washer detects this condition during the drain phase of the wash cycle and stops operation to prevent overflow or pump damage. The issue can involve the drain hose, the pump filter, the pump motor itself, or the electrical connection to the pump.

No, you should not continue running the washer while the F5 error is active. If water cannot drain properly, it may overflow the drum or remain stagnant inside the machine, which can cause odors, mold growth, or additional mechanical damage. Address the drainage issue before running another cycle.

The cost depends on the root cause. Cleaning a clogged drain hose or pump filter costs nothing beyond your time. If the drain pump motor needs to be replaced, parts typically range from $30 to $80 depending on the model, and professional labor can add another $80 to $150. A control board replacement, if needed, is generally the most expensive repair, with parts ranging from $100 to $250 or more.

Start by checking the drain hose to make sure it is not kinked, blocked, or improperly inserted into the standpipe. Next, locate and clean the drain pump filter, which is usually behind a small panel at the front bottom of the machine. If both of those check out, listen for the pump during a drain cycle: a humming pump with no water movement suggests a mechanical blockage or failed impeller, while a silent pump may indicate a wiring or motor issue that requires further testing.

A reset may temporarily clear the F5 code from the display, but the error will return if the underlying drainage problem has not been resolved. To reset, unplug the washer for about 30 seconds and then plug it back in. If the code reappears when you run a cycle, the drain hose, pump filter, or pump motor needs to be inspected and repaired.