Quick answer
Most appliances need far less maintenance than people assume, but the few tasks that do matter make a genuine difference to lifespan and performance. A short list of specific, correctly timed tasks beats a vague sense that “maintenance” is something you should get around to eventually.
Kitchen appliances
| Appliance |
Task |
Frequency |
| Refrigerator |
Clean condenser coils |
Twice a year |
| Refrigerator |
Check and replace water filter |
Every 6 months, or per manufacturer guidance |
| Dishwasher |
Clean filter and spray arms |
Monthly |
| Dishwasher |
Hot maintenance wash |
Monthly |
| Oven |
Deep clean interior |
Every 2–3 months, more with heavy use |
| Microwave |
Clean cavity and wave guide cover check |
Monthly |
Laundry appliances
| Appliance |
Task |
Frequency |
| Washing machine |
Hot maintenance wash |
Monthly |
| Washing machine |
Clean door seal |
Weekly |
| Washing machine |
Clean pump filter |
Every 2–3 months |
| Dryer |
Clean lint trap |
Every load |
| Dryer |
Clean full vent duct |
Annually, or every 6 months with heavy use |
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Heating, cooling and water
| Appliance |
Task |
Frequency |
| Water heater |
Flush tank |
Annually |
| Water heater |
Test pressure relief valve |
Annually |
| Air conditioner |
Replace or clean filter |
Monthly during heavy use |
| Air conditioner |
Clean outdoor unit and clear surrounding debris |
Twice a year |
| Furnace / heating system |
Replace filter |
Every 1–3 months during heating season |
| Furnace / heating system |
Professional inspection |
Annually, before the season starts |
Small appliances
| Appliance |
Task |
Frequency |
| Coffee machine |
Descale |
Every 4–8 weeks depending on water hardness |
| Kettle |
Descale |
Every 4–8 weeks depending on water hardness |
| Vacuum cleaner |
Empty bin/bag, check filters |
Every few uses, before it looks full |
| Vacuum cleaner |
Clean brush roll of hair and thread |
Monthly |
The general rule when you are not sure
If an appliance heats water, check it more often in hard water areas than the intervals above suggest — see our hard water appliance guide for the reasoning. If an appliance moves air (a dryer, an air conditioner, a range hood), its filter or vent is almost always the highest-value thing to check regularly. And if you are ever unsure whether something needs attention, a five-minute inspection costs far less than a fault that has been building unnoticed for months.
Set this once as recurring reminders
The tasks that actually matter are few enough to set as a handful of recurring calendar reminders in one sitting, rather than trying to remember them all from memory. Once set up, this becomes essentially free to maintain going forward.