LG Washer Error Code WATER SUPPLY & INLET V/V

This error means the washer was unable to fill to the required water level within a 40-minute period. The machine monitors how long it takes water to reach the set level, and if that threshold is exceeded, the cycle stops and the error is displayed. It points to a problem in the water supply path, the inlet hoses, or the water inlet valve itself. Start by confirming that the water supply faucets behind the unit are fully open.

It is safe to leave the machine idle while troubleshooting, but you should not attempt to continue running a cycle while the error is active. The washer has stopped the cycle because it detected a fill problem, and forcing additional cycles without resolving the issue will not produce proper wash results. Address the supply or valve issue before resuming normal use.

If the fix is as simple as opening a shutoff valve or cleaning the inlet screens, there is no parts cost involved. If the water inlet valve assembly needs replacement, parts typically range from $25 to $75 depending on the specific model, and professional labor can add $80 to $150 or more to that total. Diagnosing and confirming the failed component before purchasing parts will help avoid unnecessary expense.

Begin by checking that both the hot and cold water faucets behind the washer are fully open and that the supply hoses are not kinked. Next, inspect the small inlet screens inside the valve ports for sediment buildup and clean them if blocked. If the supply and hoses are confirmed good, the inlet valve itself may need testing or replacement. Resolving the root cause and restarting the cycle should clear the error.

Unplugging the washer for a few minutes and restarting may temporarily clear the display, but if the underlying problem is not fixed, the error will return as soon as the machine attempts to fill again. A reset is not a repair. The cause of the slow or absent fill must be identified and corrected for the error to stay cleared.