If your AC feels like it’s working overtime, you’re probably paying more than you need to. The good news? Small habits can add years to its life and keep your bills low. Below are the most practical steps you can start today.
The biggest enemy of any AC is dirty air flow. Check the indoor filter at least once a month during hot weather. If it looks dusty, replace or wash it – most filters are cheap and a quick swap takes under five minutes. A clean filter lets the unit breathe, so the compressor doesn’t have to work harder.
Don’t forget the outdoor unit. Leaves, twigs, and even a pile of sand can block the fan. Use a garden hose to gently rinse the coils once a season. If you see a thick coating of grime, a soft brush can loosen it before you spray. This simple rinse improves efficiency and reduces wear.
Turning the thermostat down to the lowest setting won’t cool your house faster – it just makes the compressor run longer. Aim for 24‑26°C (75‑78°F) when you’re home and a few degrees higher when you’re out. A programmable or smart thermostat can automatically adjust the temperature, saving energy and giving the AC a break.
Also, avoid constantly switching the fan on and off. Letting it run in “auto” mode lets the system decide the best time to circulate air, which reduces strain on the motor.
Another cheap trick is to use ceiling fans or portable fans. They move cool air around, letting you set the thermostat a degree or two higher without feeling hot.
When the outdoor unit sits in direct sunlight, it runs hotter and ages faster. If possible, shade it with a simple trellis or a UV‑reflective cover (make sure it still has airflow). Planting low‑maintenance shrubs a few feet away also helps without blocking air.
During extreme heat waves, give the AC a short “rest” by turning it off for an hour or two. This pause prevents the compressor from overheating and can extend its life.
Even if you do everything yourself, a yearly visit from a certified technician is worth it. They’ll check refrigerant levels, tighten electrical connections, and spot early signs of wear that aren’t obvious to a homeowner.
Ask the tech to clean the evaporator coil and test the thermostat calibration. Most services cost under £100 and can prevent a costly breakdown later.
Leaky ducts pull in unconditioned air, forcing the AC to work harder. Seal visible gaps with foil‑backed tape and consider a professional duct seal if you suspect larger leaks. Insulated ducts keep the cool air where it belongs.
Finally, keep the area around the indoor unit clear of furniture or curtains. Good clearance lets heat move away efficiently and reduces the chance of moisture buildup.
By following these straightforward steps – clean filters, smart thermostat use, simple outdoor care, regular professional checks, and tidy ducts – you’ll notice a cooler home, lower bills, and an AC that lasts years beyond the average. Stay cool, spend less, and let your air conditioner do what it’s built for without needless strain.
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