What does it mean that the water inlet warning light on whirlpool washing machine is on?

The tap is not turned on, so the machine can't detect the pressure of the water inlet pipe.

As long as you turn on the tap, the alarm will go away naturally. If it is not eliminated, you can turn off the power and restart it.

Water inflow timeout

When the water level switch of the machine does not detect that the water level reaches the set value within a certain period of time, it will start the alarm (generally, the water inlet time is set to 6 minutes).

The possible reason is that the water pressure is too low to solve this problem by itself. Wash when water consumption is low.

The filter screen at the water inlet is blocked. Remove the water inlet pipe of this part of the machine and try again after cleaning the filter.