Filter Replacement Calculator
When to change refrigerator, range hood, dishwasher, dryer vent and HVAC filters.
Filter Replacement Intervals
| Filter | How often | Notes |
|---|---|---|
| Refrigerator water filter | Every 6 months | Most makers recommend every 6 months or after a set number of gallons; replace sooner if water flow slows or tastes off. Refrigerator repair |
| Refrigerator air filter | Every 6 months | Only on models that have one; reduces odors inside the fridge. Refrigerator repair |
| Range hood metal grease filter | Every 1–3 months | Wash rather than replace; clean monthly if you fry or sear often. Range Hood repair |
| Range hood charcoal filter | Every 3–6 months | Recirculating (ductless) hoods and over-the-range microwaves only. Charcoal cannot be washed. Range Hood repair |
| Dishwasher filter | Every 1 months | Clean monthly (more often for heavy use). Replace only if it is cracked or damaged. Dishwasher repair |
| Dryer lint screen | Every load | Clean after every load. Wash with soapy water every few months if dryer sheets leave a film. Dryer repair |
| Dryer vent cleaning | Every 12 months | Clean the full vent run at least once a year; long or bendy vents may need it more often. Dryer repair |
| HVAC 1-inch filter | Every 1–3 months | Every 1 to 3 months; monthly with pets, allergies or heavy use. Furnace repair |
| HVAC 4-inch media filter | Every 6–12 months | Thicker media filters last longer; check every few months. Furnace repair |
| Whole-house humidifier pad | Every 12 months | Replace once per heating season; more often with hard water. Humidifier repair |
| Air purifier HEPA filter | Every 6–12 months | Check the maker's indicator; vacuum or replace pre-filters more often. Air Purifier repair |
| Water softener / whole-house sediment prefilter | Every 3–6 months | Replace when pressure drops or the cartridge looks dirty. Keep softener salt topped up. Water Softener repair |
| Reverse osmosis prefilters (sediment and carbon) | Every 6–12 months | Prefilters protect the membrane; change on schedule even if water tastes fine. Reverse Osmosis System repair |
| Reverse osmosis membrane | Every 24–36 months | Lasts longer with regular prefilter changes; replace if TDS readings rise. Reverse Osmosis System repair |
| Ice machine water filter | Every 6 months | Freestanding and commercial ice machines; replace more often in hard-water areas. Ice Maker repair |
| Dehumidifier air filter | Every 1 months | Washable on most models; clean monthly during use. Dehumidifier repair |
Intervals are typical manufacturer guidance. Homes with pets, heavy cooking, hard water or dust may need shorter intervals; follow your owner's manual where it differs.
Get it fixed in Brookfield
Tools help you understand the problem; a technician fixes it. Call (844) 442-1999 for an upfront quote.
Refrigerator Repair
A household refrigerator keeps fresh food cold with a fresh-food section and usually a freezer compartment, cooled by a sealed refrigerant system and a set of fans.
View serviceWashing Machine Repair
A washing machine fills a tub with water, agitates or tumbles laundry with detergent, then drains and spins water out of the clothes.
View serviceDryer Repair
A clothes dryer tumbles wet laundry in a heated drum and vents moist air outside through a duct.
View serviceDishwasher Repair
A dishwasher sprays heated water and detergent over loaded dishes, drains the dirty water, rinses and dries them in a timed cycle.
View serviceOven Repair
An oven is an enclosed heated cavity, gas or electric, that bakes, roasts and broils using a thermostat or sensor to hold temperature.
View serviceRange Repair
A range combines a cooktop and an oven in one freestanding or slide-in unit, powered by gas, electricity or both.
View serviceMicrowave Repair
A microwave uses a magnetron to produce microwave energy that heats food inside a shielded cavity, in countertop, over-the-range or built-in styles.
View serviceIce Maker Repair
A built-in ice maker is a dedicated undercounter appliance that freezes clear ice cubes on an evaporator plate and stores them in an insulated bin.
View serviceMore free tools
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- Schedule an Appointment
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