Start with the manufacturer’s guidance
There is no single replacement schedule that applies to every refrigerator. Check the owner’s manual, the filter packaging, and the manufacturer’s support information for the model and filter you have.
Signals that the filter needs attention
Many refrigerators display a filter indicator or reminder. You may also notice a change in water flow, taste, or odor. These signs can have more than one cause, so use them as reasons to check the filter and appliance instructions rather than as a universal diagnosis.
Usage and water quality matter
A household that dispenses more water may use a filter differently from a household that rarely uses the dispenser. Local water conditions and the quality of the incoming supply can also affect how a filter performs. The replacement instructions for your specific model take priority over general advice.
After replacing the filter
Install the cartridge according to the manufacturer’s instructions, flush it as directed, and reset the refrigerator’s filter indicator if the model has one. If the filter does not fit smoothly or the indicator behaves unexpectedly, stop and confirm the model and part number.
Need help identifying the cartridge? Start with the FitsMyModel search using the complete refrigerator model number.