Maintenance Tasks Most People Overlook Until Something Breaks

The TPR valve on a water heater is a safety device designed to release pressure if the tank overheats. It should be tested roughly once a year by briefly lifting the lever and checking that water flows out — and stops when you release it. A valve that's stuck, corroded, or leaking constantly is a warning sign that warrants a licensed plumber. This is not a task to skip: a failed TPR valve on an overheating tank is a genuine hazard. If you're unsure about the condition of your water heater, have a professional inspect it.

Clearing the lint screen before every load is something most people do. What fewer people do is clean the exhaust duct that runs from the dryer to the outside of the home. Lint accumulates in this duct over time, restricting airflow and creating a fire risk. The U.S. Fire Administration has consistently identified dryers as a leading cause of home fires, with failure to clean the appliance cited as the top contributing factor. Detach the duct annually, clear any buildup, and check that the exterior vent flap opens freely when the dryer runs.

Refrigerator condenser coils release heat to keep the interior cold. When they're coated in dust and pet hair, the fridge has to work harder to maintain temperature — shortening the compressor's lifespan and raising your energy use. On most models, the coils are located either at the back or behind a grille at the bottom front. Unplug the fridge, use a coil brush or vacuum attachment, and clean them every six to twelve months. It takes about ten minutes and can meaningfully extend the appliance's working life.

Most HVAC and furnace filters are rated for one to three months depending on the type and household conditions (pets, allergies, and occupancy all affect this). A clogged filter doesn't just reduce air quality — it forces the system to strain, which can cause overheating, reduced efficiency, and in some cases premature blower motor failure. Check your filter monthly and replace it as soon as it looks grey and clogged. Note the filter size on the frame so you always buy the right replacement without guessing.

Pressing the test button tells you the alarm sounds — it doesn't tell you the sensor itself is working correctly. Detectors have a rated lifespan: smoke alarms are generally recommended to be replaced every ten years, and carbon monoxide detectors every five to seven years (check the manufacturer's date). Knowing the difference between the two devices also matters — they detect completely different dangers and should be placed in different locations. The guide to smoke alarms and CO detectors covers placement and testing in detail.

In areas with hard water, mineral sediment settles at the bottom of a water heater tank over time. This insulates the water from the heating element, making it less efficient and causing the tank to run hotter and longer. Flushing the tank annually — attaching a hose to the drain valve and letting water run until it clears — removes this buildup. Turn off the power or gas and cold water supply first, and let the tank cool before draining. If your water heater is older or you haven't done this before, it may be worth having a plumber do the first flush, as a neglected drain valve can sometimes seize.

A drain that empties slowly is showing you it's partially obstructed — usually with hair, soap scum, or grease. Waiting until it's completely blocked means a harder fix, possible overflow, and sometimes a plumber's bill. Regular cleaning with a drain snake or simple physical removal of debris from the stopper is enough for most bathroom drains. Avoid relying heavily on chemical drain cleaners, which can damage pipes over time. The guide to keeping drains clear without harsh chemicals covers safer, effective methods.