The Appliance Maintenance Calendar

Almost nothing in a kitchen or laundry room fails suddenly. A dryer vent fills over three years. A condenser coil accumulates dust over five. A door gasket takes a set slowly enough that no single day is the day it stopped sealing. By the time a symptom appears, the process has been running for a long time, and the repair is fixing the consequence rather than the cause.

The whole list below adds up to a handful of hours a year. It is organised by interval because that is how it actually gets done — a calendar reminder works, and a list of good intentions does not.

Why a calendar rather than a list

Two practical arguments for putting these on repeat rather than doing them when you think of it.

First, the high-value items are all invisible. Nobody notices a coil getting dusty. The tasks that pay for themselves are precisely the ones with no symptom until there is a big one.

Second, several of these are also warranty-relevant. “Failure due to lack of maintenance” is standard exclusion language in manufacturer and extended warranties alike, and a refrigerator with completely clogged coils or a dryer with a blocked vent is exactly the case an adjuster has in mind.

Every month

Run a washer cleaning cycle. Front loaders especially. A cleaning tablet or a hot cycle with bleach or washing machine cleaner, plus wiping the door boot and leaving the door ajar between loads. Ten minutes of attention, and it is the entire difference between a machine that smells and one that does not — the full procedure if yours is already there.

Clean the dishwasher filter. On most modern machines this is a quarter-turn and a rinse under the tap. It is the most-skipped maintenance task in the house and it is directly responsible for a large share of poor cleaning complaints.

Wash the range hood grease filters. Mesh filters go in the dishwasher on their own cycle, or soak in hot water with degreaser. A saturated filter means the hood is moving very little air, which you will not notice until you cook something that smokes.

Wipe refrigerator door seals. Warm soapy water. Crumbs and sticky residue on a gasket prevent a seal as effectively as damage does.

Every three months

Vacuum the refrigerator condenser coils. Unplug, remove the kick plate or pull the unit out, and clear the coil and the condenser fan with a brush and a vacuum. Every three months in a house with pets, twice a year otherwise. This is the highest-value routine task on the whole list: it costs nothing, takes twenty minutes, and it is the first thing a technician will check when a refrigerator will not hold temperature.

Check the washer fill hoses. Look for bulges, rust at the couplings, dampness, or stiffness. Feel behind the machine. A burst fill hose is one of the most expensive water events a house can produce, and the warning signs are visible months in advance.

Run hot water and a cup of vinegar through the dishwasher empty. Clears scale and biofilm from the spray arms and the sump.

Grind ice and citrus peel in the garbage disposal. Ice knocks debris off the grind ring, citrus deals with the smell. Free.

Twice a year

Clean the dryer vent, end to end. Not the lint filter — the duct. Pull the dryer out, disconnect the duct, clean it with a vent brush, and go outside and confirm the exterior hood flap opens freely and air is coming out with force. If the run is long or has several bends, do this more often. This is a fire-risk task as much as an efficiency one, and it is the reason most slow dryers are slow.

Replace the refrigerator water filter. Roughly every six months, or when the indicator says so. Filters run $25 to $60. An old filter is the usual cause of a slow dispenser and small hollow ice cubes.

Test every door seal with the dollar-bill test. Close the door on a bill and pull. Drag means a seal; no drag means a leak. Work around all four sides of every refrigerator and freezer door.

Verify temperatures with a real thermometer. 37°F fresh food, 0°F freezer. Built-in displays drift. A $6 thermometer left in overnight tells you the truth.

Check the dishwasher door gasket and latch. A stiff gasket or a lazy latch is the start of a leak, and both are cheap parts caught early.

Level check. A spirit level on the washer, the dryer and the refrigerator. Floors settle, feet loosen, and an out-of-level washer is the leading cause of vibration and walking.

Once a year

Clean the washer drain pump filter. Most front loaders and many top loaders have an access panel at the bottom front. Put a towel down. Coins, hair clips and buttons live there, and clearing them prevents the drain failure that otherwise arrives with a full tub of water.

Deep clean the oven, manually. Not with the self-clean cycle if you can avoid it — that cycle drives the cavity to extreme temperatures and is a common trigger for a blown thermal fuse or a door latch that will not release. If you do run it, run it well before any occasion where you need the oven.

Check oven calibration. An oven thermometer on the middle rack, set to 350°F, read after it has settled for twenty minutes. If it is off by more than 25 degrees, recalibrate it.

Clean the gas burner ports and caps. Yellow or uneven flames mean clogged ports. A pin and a wire brush fix it. See the burner guide.

Defrost a manual-defrost freezer, or check for frost buildup on an automatic one. Frost on the evaporator insulates it and makes the whole unit work harder — and heavy frost on an auto-defrost unit is a defrost system fault, not a maintenance failure.

Vacuum behind and under everything. Dust under a refrigerator or dryer restricts airflow and is a genuine contributor to both efficiency and heat.

Every few years

Replace washer fill hoses. Braided stainless hoses cost very little. Replace them on a schedule — every five years is a common recommendation — rather than after a failure. This is the highest-consequence cheap part in the house.

Replace the dryer duct if it is foil. Flexible foil duct crushes, sags and traps lint. Rigid or semi-rigid metal is better in every way.

Replace refrigerator and freezer door gaskets when the dollar-bill test fails in several places. A gasket runs roughly $20 to $140 depending on the appliance, and a badly sealing door costs you continuously.

Replace the range hood charcoal filter on a recirculating hood. Mesh grease filters are washable; charcoal filters are not, and a saturated one does nothing.

More detail on which parts are worth pre-emptive replacement — and which are not — in six cheap parts worth replacing before they fail.

What this actually prevents

Being specific about the return, because “maintenance is good” is not an argument:

• Clean coils prevent the most common refrigerator service call there is, and reduce running cost continuously.
• A clear dryer vent prevents long cycles, prevents thermal fuse failures, and reduces a genuine fire risk.
• Clean filters prevent most dishwasher cleaning complaints and most drain failures.
• Good door seals prevent temperature drift, frost, and continuous over-running.
• Fresh fill hoses prevent the single most damaging appliance failure a house can suffer.
• Level machines prevent vibration damage to suspension and bearings.

Together those account for a large share of the calls in our repair guides. None of it makes an appliance immortal — a washer still has about eleven years in it and a dishwasher about ten — but it moves failures from the middle of an appliance's life to the end of it, which is exactly where you want them. When something does fail anyway, the Blue Book will tell you whether it is worth fixing, and the directory will tell you who is nearby.