LG Washer Error Code Water supply error

This error means the LG washer monitored its water supply system for 60 minutes and detected no frequency change, indicating that no water entered the machine during that time. The control board uses fill frequency as confirmation that water is flowing, and when that signal is absent for a full hour, it stops the cycle. The cause is typically a closed supply valve, a kinked hose, a clogged inlet screen, or a failed water inlet valve.

Pressing the POWER button will clear the error display and allow you to restart the machine, but it will not fix the underlying cause. If the supply issue is not corrected, the washer will attempt to fill again and the error will return after another 60 minutes without detected water flow. The reset is a starting point for diagnosis, not a repair.

If the fix is simply opening a valve, clearing a kinked hose, or cleaning the inlet screens, there is no parts cost involved. Replacing a failed water inlet valve typically costs between $25 and $80 for the part, plus labor if a technician is performing the repair. A professional diagnostic visit generally runs between $75 and $150 depending on your location and the service provider.

Start by pressing POWER to reset the error, then check that both the hot and cold water supply valves behind the washer are fully open. Inspect the inlet hoses for kinks or damage, and remove them to clean the small filter screens inside the inlet fittings at the back of the machine. If supply pressure and hoses check out, the water inlet valve itself may need to be tested and replaced.

You should not attempt to run additional cycles until the water supply issue is resolved. The washer halts the cycle and locks the control panel specifically to prevent operating without water, which could damage internal components. Address the supply or inlet valve problem before resuming normal use.