Kenmore Washer Error Code LF

LF stands for Long Fill. It means the washer's control board turned on the fill valves but did not detect a water level change within the expected time period. This can happen because water is not entering the tub, water is entering too slowly, or the pressure sensor system is not communicating the level change back to the control. The washer halts the cycle until the issue is resolved.

You should not ignore or repeatedly bypass the LF code. The washer halts the cycle specifically to prevent the fill valve from running indefinitely, which could eventually cause water supply issues or place unnecessary strain on the valve components. Continuing to run the machine without diagnosing the root cause risks leaving the fill valve energized longer than intended. Resolve the underlying problem before returning the washer to regular use.

Repair costs depend on what is causing the error. If the fix is simply cleaning the inlet hose screens or opening a supply valve, there is no parts cost involved. Replacing a water inlet valve typically costs in the range of $30 to $80 for the part, while a pressure switch generally runs $15 to $50. If professional labor is required, expect an additional $75 to $150 or more depending on your location and service provider.

Start by confirming both water supply valves behind the washer are fully open. Then disconnect the inlet hoses and inspect the small mesh screens at the hose fittings for sediment or debris, cleaning them if necessary. If water is entering the tub but the code persists, trace the pressure hose from the tub to the control and check for kinks, cracks, or blockages. If those steps do not resolve the issue, the inlet valve or pressure switch may need to be tested and replaced.

Unplugging the washer for a few minutes and restarting it may temporarily clear the LF code, but the code will return if the underlying problem is not fixed. The error is triggered by an active fill condition that the control monitors during every cycle, so a reset alone is not a repair. Address the supply, screen, pressure hose, or sensor issue first to prevent the code from recurring.