Making Appliances Last: Simple Maintenance for Fridges, Washers and More

Household appliances are some of the most expensive things most families buy, and when one breaks down unexpectedly, the cost of a replacement — plus delivery, installation and disposal of the old one — can upset a carefully planned budget. The good news is that many breakdowns are caused by problems that simple, regular care can prevent: blocked filters, clogged seals, dust-covered coils and overloading.

This guide covers practical maintenance for the appliances found in most homes. None of it requires specialist tools or technical knowledge, and most tasks take only a few minutes. Always unplug an appliance before cleaning or inspecting it, follow the manufacturer's instructions, and leave internal electrical, gas and refrigerant repairs to qualified engineers.

Why maintenance pays

• Longer life. An appliance that lasts several years longer saves the full cost of a replacement for that period.
• Lower running costs. Clean filters, seals and coils help appliances work efficiently, so they use less energy and water.
• Fewer call-outs. Many engineer visits are for problems such as blocked filters that owners could have cleared themselves.
• Better results. A clean washing machine washes better; a clean dishwasher leaves fewer marks; a well-maintained vacuum picks up more dust.
• Safety. Lint build-up in tumble dryers and grease in cooker hoods can be fire risks.

Start with the manual

The manufacturer's manual is the best maintenance guide for your specific model. It explains how to reach filters, which cleaning products are safe, and which problems you can fix yourself. If you have lost it, most manufacturers publish manuals online; searching for the model number, usually printed on a label inside the door or on the back, will usually find it. Keep a folder — paper or digital — with manuals, receipts and warranty details for every appliance.

Fridges and freezers

Fridges and freezers run all day, every day, so keeping them efficient matters.

• Check the door seals. A damaged or dirty seal lets warm air in, making the appliance work harder. Clean the seals with warm soapy water and check them by closing the door on a sheet of paper: if it slides out easily, the seal may not be gripping well in that spot. Replacement seals are available for many models.
• Clean the condenser coils. On many fridges, the coils at the back or underneath gather dust, which reduces efficiency. Unplug the fridge and gently vacuum or brush them once or twice a year, following the manual.
• Leave space around the appliance so air can circulate and heat can escape, as recommended by the manufacturer.
• Defrost manual-defrost freezers when ice builds up; thick ice makes the freezer work harder and reduces space. Never chip ice with sharp tools, which can puncture the cooling system.
• Set sensible temperatures. Food safety agencies commonly recommend keeping fridges at around 5°C or below and freezers at around −18°C. Colder than necessary wastes energy; warmer risks food safety. A cheap fridge thermometer helps.
• Do not overfill. Air needs to circulate to keep food cold evenly, though a reasonably full freezer holds its temperature better than an empty one.
• Let hot food cool before putting it in the fridge, but refrigerate leftovers promptly, within the time recommended by food safety guidance.
• Clean the drain hole at the back of the fridge compartment if water collects at the bottom; many fridges come with a small tool for this.

Washing machines

• Clean the filter. Most front-loading machines have a filter behind a small panel at the bottom front that catches coins, hair grips, buttons and fluff. A blocked filter causes slow draining, poor spinning and error codes. Place a shallow tray and towels beneath it, because water will come out.
• Clean the detergent drawer regularly to prevent mould and blockages.
• Wipe the door seal, including the folds, where water, hair and detergent residue collect. Leave the door and drawer slightly open after each wash so the drum can dry.
• Run a maintenance wash as the manufacturer recommends, typically a hot programme with the drum empty, to remove residue and odours.
• Do not overload. Overloading strains the drum bearings and motor, and clothes are cleaned less effectively.
• Check pockets before washing; coins and keys can damage the drum and pump.
• Use the right amount of detergent. Too much can leave residue and cause excessive suds.
• Level the machine. A machine that rocks and walks across the floor during spin wears faster. Adjust the feet so it sits level and firm.
• Check hoses occasionally for cracks or bulges, and replace them if worn.

Tumble dryers

• Clean the lint filter after every use. This is the single most important task. A clogged filter increases drying time, wastes energy and can be a fire risk.
• Empty the water container on condenser dryers after each use.
• Clean the condenser unit on condenser dryers as described in the manual, and the heat exchanger filters on heat-pump dryers.
• Check vented dryer hoses to make sure they are not kinked, crushed or blocked.
• Never leave a dryer running unattended overnight or when nobody is home, and check whether your model is subject to any safety notice.

Dishwashers

• Clean the filter. Most dishwashers have a removable filter at the bottom of the tub. Rinse it under the tap regularly to remove food debris, which improves cleaning and prevents smells.
• Check the spray arms. Remove and rinse them if the holes are blocked by food or limescale.
• Use rinse aid and dishwasher salt where your machine and water hardness require them. Salt helps the water softener work in hard-water areas, protecting the machine from limescale.
• Scrape, do not rinse. Scraping food into the bin before loading saves water, and modern detergents need some soil to work against.
• Run a cleaning cycle periodically with a dishwasher cleaner or as advised by the manufacturer.
• Wipe the door seals to remove residue.

Ovens, hobs and cooker hoods

• Clean spills promptly before they bake on, which makes cleaning harder and can cause smoke.
• Check the oven door seal for gaps; a poor seal lets heat escape.
• Clean or replace cooker hood filters. Grease filters are often washable; carbon filters in recirculating hoods need replacing periodically. Clogged filters reduce extraction and can be a fire risk.
• Use the correct pan sizes on hobs to avoid wasting heat.
• Have gas appliances serviced by a properly registered or certified engineer, as required in your country, and fit a carbon monoxide alarm where there are fuel-burning appliances.

Kettles and coffee machines

• Descale regularly in hard-water areas. Limescale makes kettles slower and less efficient. Follow the manufacturer's descaling instructions and products; citric acid and vinegar solutions are common household options where the manual permits them. Rinse thoroughly afterwards.
• Boil only the water you need.
• Clean coffee machines according to the manual, including descaling and cleaning milk systems.

Vacuum cleaners

• Empty the bin or change the bag before it is full; suction drops sharply as it fills.
• Wash or replace filters as recommended. Many bagless models have washable filters that must be completely dry before refitting.
• Clear the brush roll of tangled hair and thread, using scissors carefully along the groove.
• Check hoses and attachments for blockages if suction drops.
• Do not vacuum liquids, fine plaster dust or ashes unless the vacuum is designed for it; these can damage the motor.

Microwaves

• Wipe the interior regularly; food residue absorbs energy and can damage the interior surfaces over time.
• Steam-clean stubborn residue by heating a bowl of water with a slice of lemon for a few minutes, then wiping.
• Never run a microwave empty, and use only microwave-safe containers.
• Stop using a microwave with a damaged door, hinges or seals, and have it checked or replaced.

Small habits that prevent big repairs

• Read error codes. Many modern appliances display codes that point to simple problems, such as a blocked filter or an open door. The manual explains them.
• Listen for new noises. Grinding, banging or squealing often signals a problem that is cheaper to fix early.
• Use surge protection for expensive electronics if your area has frequent power disturbances.
• Keep appliances clean and dry on the outside, especially around controls and vents.
• Avoid moving fridges and freezers unnecessarily; if you do move one, follow the manufacturer's advice about waiting before switching it back on.

Repair or replace?

When an appliance breaks down, ask a few questions before replacing it:

1. Is it still under warranty or guarantee? Check the receipt and warranty terms; consumer protection rights in some countries can extend beyond the manufacturer's warranty for faulty goods.
2. Is the fault simple? Check the manual's troubleshooting section and look for blocked filters or tripped settings.
3. What will the repair cost? Get a quote. A common rule of thumb is that a repair is worthwhile if it costs significantly less than replacement and the appliance is otherwise in good condition.
4. Are spare parts available? Some regions now require manufacturers to make spare parts available for a number of years.
5. How efficient is the old appliance? A very old, inefficient fridge or freezer may cost so much to run that replacing it with an efficient model saves money over time.

Repair cafés, local repair shops and manufacturers' authorised repairers are all worth considering before you buy new.

A maintenance calendar

• After every use: clean the tumble dryer lint filter; empty the condenser dryer's water container.
• Weekly: wipe the washing machine door seal; leave doors ajar to dry.
• Monthly: clean the washing machine and dishwasher filters; descale the kettle in hard-water areas; check vacuum filters.
• Every three to six months: run washing machine and dishwasher maintenance cycles; clean cooker hood filters; check door seals on the fridge and oven.
• Yearly: clean fridge condenser coils; check appliance hoses; book gas appliance servicing where required.

The bottom line

Appliances last longer and cost less to run when they are kept clean and used as the manufacturer intended. A few minutes of maintenance — clean filters, healthy seals, dust-free coils and sensible loading — prevents many of the breakdowns that lead to expensive repairs and early replacements. Keep the manuals, follow a simple calendar, and treat new noises and error codes as early warnings rather than problems for later.