A new filter is one answer to the fall taste, and a filter change can leave behind symptoms of its own.
Little or no ice since the filter went in
Whirlpool's help pages say an improperly installed filter could reduce or stop water flow and decrease ice production. Take the filter back out, confirm it is the model the refrigerator calls for, and seat it again until it locks, following the manual.
Hollow cubes or a dripping spout right after the change
A filter change lets air into the water line, and an unflushed filter can leave dripping at the dispenser and small or hollow cubes. Run the amount of water specified in the filter's instructions, in short bursts, and allow about 24 hours for the water to chill again. Give the next few batches of ice a chance before deciding a part has failed.
Water on the floor
An improperly installed filter can also leak from its housing, so after a filter change, look for drips around the housing first. Water that comes from behind the refrigerator while the housing stays dry points to the inlet valve, the supply line, or the connection behind the unit, and that is a repair call.
An empty bin while the water tastes fine
If the door pours a normal stream of clean-tasting water and the bin has stayed empty for a day or more, the filter is less likely to be the cause. Two quick checks come first: look at the display for an “Ice Maker Off” message, and make sure the ice bin is seated properly, since the ice maker will not work properly with the bin out of place. Then call, and mention when the filter was last changed.
For the parts behind an empty bin, and how a diagnosis narrows them down, go to Ice Maker Repair.