How long should a major appliance last?
Expect 12 to 16 years from a freezer, 13 to 15 from a range, 10 to 15 from a refrigerator, 10 to 13 from a washer or dryer, and 9 to 12 from a dishwasher. Water hardness, ambient heat, airflow and load habits decide where you land.
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Published
Service life figures get quoted as though they were specifications. They are not. They are ranges, and where a particular appliance lands inside its range depends on things largely within your control.
The ranges
| Appliance | Expected service life | First parts to fail |
|---|---|---|
| Freezer | 12 to 16 years | Door gasket, defrost heater, thermostat |
| Range or oven | 13 to 15 years | Bake element, igniter, temperature sensor |
| Refrigerator | 10 to 15 years | Evaporator fan, start relay, door gasket |
| Washing machine | 10 to 13 years | Drain pump, door lock, shock absorbers |
| Dryer | 10 to 13 years | Thermal fuse, heating element, idler pulley |
| Garbage disposal | 8 to 12 years | Flywheel seizure, mounting gasket, reset switch |
| Dishwasher | 9 to 12 years | Drain pump, spray arms, door latch |
| Over-range microwave | 8 to 11 years | Vent fan, door switches, keypad |
Two patterns are worth noticing. Appliances with the fewest moving parts last longest, which is why freezers and ranges top the list. And the parts that fail first are almost always inexpensive wear items rather than the expensive components people worry about.
Factor one: water hardness
This is the single biggest variable for anything plumbed in, and it is why identical dishwashers in different cities have noticeably different lifespans.
Dissolved minerals deposit scale on every wetted surface. In a dishwasher that means narrowed spray jets, an insulated heating element and added friction in the circulation pump. In an ice maker it means a restricted inlet valve and fill tube. In a washing machine it means scale on the element and in the valves.
None of it fails suddenly. It degrades performance gradually, so people adapt to a declining appliance without registering the decline. In a hard water area, running a descaler through a dishwasher every few months genuinely extends its life rather than simply cleaning it.
Factor two: ambient temperature
Refrigeration appliances are rated for a temperature range, and that range assumes a conditioned room. A refrigerator or freezer in a garage that reaches 100 degrees Fahrenheit in summer is operating outside what its compressor was designed for, every day, for months.
The result is a unit that runs almost continuously through the hot season, which is when bearing noise and overheating faults appear. Garage-ready models exist precisely because this is a known problem, and in a hot climate they are worth the difference.
The reverse applies in cold climates. An unheated basement or porch laundry puts washer inlet hoses and ice maker lines at freeze risk, and a line that freezes and thaws tends to split.
Factor three: airflow
For dryers this is the dominant factor, and it is almost entirely about maintenance.
A dryer with a restricted vent overheats repeatedly, and each overheat cycle stresses the thermal fuse, the element and the control. The machine also runs far longer per load, which multiplies wear on the belt, the pulley and the motor. A dryer kept with clear airflow comfortably reaches the top of its range; one running on a clogged duct will not reach the bottom of it.
For refrigeration the equivalent is condenser coils. Coils packed with dust mean heat cannot leave the appliance, so the compressor works harder for the same result.
Factor four: load habits
Overloading is the quiet killer for laundry appliances. A consistently overpacked washer drum puts sustained strain on the bearings, the shocks and the belt, and those are the components whose failure ends a machine’s life rather than merely interrupting it.
Overloading a dryer is worse than it looks for a different reason: air cannot circulate between the items, so the load takes far longer and the machine runs hot for much of that time. Two properly sized loads frequently finish sooner than one crammed load, and put a fraction of the strain on the machine.
What this means practically
The maintenance that extends appliance life is unglamorous and takes about an hour a year in total. Clean the dryer lint filter after every load and clear the duct annually. Vacuum refrigerator condenser coils once or twice a year. Change the refrigerator water filter every six months. Descale the dishwasher if your water is hard. Check the washer inlet hoses when you pull the machine out. Do not overload anything.
None of it is interesting, and all of it is the difference between the top and the bottom of these ranges.