How often should I replace my refrigerator water filter?
Recommended schedule
The general rule is every 6 months. However, if you have hard water or use a lot of water, you might need to change it more often—every 3–4 months. Some high-capacity filters last up to a year, but that's less common.
Your fridge may have a filter indicator light that turns on when it's time. Don't ignore it. A clogged filter can slow water flow, make ice taste bad, and even damage the water dispenser. If you notice a change in taste or odor, replace it sooner.
- Every 6 months is standard.
- Every 200–300 gallons for many models.
- Sooner if water flow slows or taste changes.
- Follow your fridge's indicator light.
- Mark your calendar or set a reminder.
How to replace and reset
Replacement is usually simple: twist out the old filter and twist in the new one. Run 2–3 gallons of water through the dispenser to flush out air and loose carbon fines before drinking. Then reset the filter indicator by holding the reset button for a few seconds.
Buy the correct filter for your model. Aftermarket filters are cheaper but may not fit or perform as well. Genuine filters cost more but ensure proper filtration and fit. Check the filter's certification (like NSF) for contaminant reduction claims.
Common mistakes
- Waiting until the water tastes bad—by then, the filter is likely overdue.
- Using a generic filter that doesn't fit properly, causing leaks.
- Forgetting to flush the new filter, which can leave black carbon particles in your water.
