1. Washing Machines and Dryers
While leaving these appliances plugged in consumes minimal standby power, American electrical engineer Tim Hodnicki advises against frequent unplugging. Constantly plugging and unplugging can wear out outlets and plugs faster. Moreover, modern washing machines and dryers have integrated diagnostic systems that record usage and errors. Unplugging them erases this data, complicating maintenance and repairs.
2. Refrigerators
Never unplug your refrigerator. Doing so causes internal temperatures to rise rapidly, spoiling food and promoting bacterial growth. When plugged back in, the compressor works overtime to cool down, consuming more energy and potentially shortening its lifespan.
3. Dishwashers
Like washing machines and refrigerators, dishwashers should remain plugged in to retain control panel settings. Newer models also feature diagnostic systems, which can malfunction if unplugged frequently. Standby power consumption is negligible, making unplugging unnecessary.
4. Microwaves
Despite being considered a “small appliance,” experts recommend keeping microwaves plugged in. Modern microwaves use minimal standby power, and frequent unplugging can damage outlets and internal components. Additionally, you’ll need to reset the clock each time you plug it back in. If concerned about energy use, use a power meter to check standby consumption.
5. Wi-Fi Routers and Modems
For stable internet, avoid unplugging these devices. Routers and modems are designed to run 24/7; frequent power interruptions reduce their lifespan, affect signal stability, and wear out transformers faster. Only restart them during network issues; otherwise, keep them plugged in.
6. Ovens and Induction Cooktops
These high-power appliances use heavy-duty outlets. Experts warn that unplugging them after each use is impractical and poses safety risks with high-current connections. If your outlet has overload protection, surge protection, or a circuit breaker, unplugging is unnecessary.
7. Water Heaters
Water heaters should remain plugged in to maintain consistent water temperatures. Frequent unplugging can cause erratic heating, increase pressure on heating elements, and shorten the device’s lifespan.
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The 3 Don’ts of Microwave Usage
It is highly recommended that you avoid using a microwave oven that shows signs of damage such as dents, cracks, or peeling. Never place metal or unsafe plastic containers in the microwave, as this could be hazardous.
