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Solving everyday tech and lifestyle questions — AI, smartphones, PCs, web, money, work, and life.

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Image of washing machine error display and troubleshooting methods

Does your washing machine suddenly stop working or stop due to an error? Self-check by symptom and criteria for determining repair/replacement

If your washing machine suddenly stops working or stops due to an error, we will explain a checklist for each symptom and what you can do to deal with it yourself. From the causes of drainage errors, unusual noises, and poor drainage, to the criteria for determining whether repair or replacement is better.

2026.03.12ワカラン？編集部

White sink and cleaning supplies (baking soda and citric acid spray)

暮らし・家事

Can't get rid of yellowing and water stains on the washbasin? How to remove different types of dirt and tips for cleaning without damaging the material

Are you having trouble getting rid of yellowing or white sticky water stains on your sink? Yellowing and water stains have different causes, so unless you choose the right detergent, they will not come off. We will explain in an easy-to-understand manner how to distinguish between stain types, how to remove stains using baking soda and citric acid, precautions for each material such as ceramics and resin, and 5 habits to prevent stains.

2026.03.12ワカラン？編集部

Illustration of a large refrigerator stuck in the door frame of a narrow entrance

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Can't get a new refrigerator into your house? 5 delivery routes you should measure before purchasing and what to do if it doesn't fit in when it arrives

The new refrigerator won't pass through the entrance or hallway! We explain the 5 delivery routes you should measure before purchasing (entrance, hallway, elevator, indoor passage, installation space) and 5 things to do if you can't make it on the day of delivery. You can also find out the approximate cost of bringing in a crane and how to cancel or return the product.

2026.03.11ワカラン？編集部

An image of HEATTECH shrinking in the dryer — washing machine and a shirt that has become smaller

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Did HEATTECH shrink when you put it in the dryer? Why synthetic fibers are not allowed in the dryer and how to dry them safely

If you put HEATTECH in the dryer, will it shrink, melt, or even catch fire? We will explain why synthetic fibers are not allowed in the dryer, how to read the washing label, and 5 tips for drying them safely and quickly.

2026.03.10ワカラン？編集部

Image illustration of causes and remedies when the air conditioner does not work or does not turn on

暮らし・家事

Is your air conditioner not working or turning on? 7 reasons why the power won't turn on and how to deal with it yourself

We explain 7 reasons why the air conditioner does not respond or turn on when you press the remote control, and what you can do to deal with it yourself. We've put together a list of points you should check before hiring a contractor, including dead batteries, circuit breakers, protection functions, outdoor unit troubles, and how to tell how long the service life is.

2026.03.06鈴木遥

An image of resolving the smell of laundry by reviewing the washing machine's rinse settings

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Does your laundry smell like something? Pitfalls of setting “one rinse” and how to correctly choose the number of rinses and course

The reason why your laundry smells may be due to the "one rinse" setting. We will explain in an easy-to-understand manner the difference between pre-rinsing and water-filling rinsing, how to change settings depending on the manufacturer, and precautions for detergents that can be rinsed once.

2026.03.05鈴木遥

Water droplets being played like beads on the surface of the windbreaker

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Did your windbreaker lose its water repellency? Tips on how to properly use “water repellent for washing machines” that lasts longer than spray and how to restore its effectiveness

Explains what to do when the water repellency of your windbreaker or rainwear has deteriorated and it no longer repels water. The difference between water repellent spray and washing machine water repellent, how to properly use NIKWAX TX. Direct, how to restore water repellency with an iron or hair dryer, and tips to make the effect last longer.

2026.03.04鈴木遥

An image of a problem where the microwave oven does not work or heat up

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Is your microwave not working or heating up? 6 causes of failure and criteria for determining repair/replacement [Includes estimated lifespan]

There are 6 reasons why a microwave oven won't work or heat up, ranging from power supply problems to deterioration of the magnetron. We will explain how to check it yourself and the criteria for deciding whether repair or replacement is more economical.

2026.03.03鈴木遥

Cleaning tools for bathroom door rails and gaskets (spray bottle, toothbrush, cloth)

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Can't get rid of the black mold on the bathroom door rail/packing? Cleaning methods for different types of dirt and 5 habits to prevent recurrence

We explain how to remove black mold, white crunchy dirt, and pink dirt from bathroom door rails and rubber gaskets by dirt type. We will also introduce the chlorine bleach compress method, citric acid pack procedure, and 5 preventive measures to prevent mold from growing again.

2026.03.02鈴木遥

White dirt on an electric kettle and how to clean it with citric acid

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Can't get the white stains off your electric kettle? Cleaning methods and preventive measures using citric acid, baking soda, and vinegar

Explaining the true nature of the white rough dirt stuck to the inside of an electric kettle and the correct use of citric acid, baking soda, and vinegar. We'll introduce you to basic cleaning procedures that can be set up in 5 minutes, what to do when stubborn water stains won't come off, and preventive measures you can take on a daily basis.

2026.03.01鈴木遥

Illustration of cleaning tools for grilling fish (baking soda, spray bottle, sponge) and a clean grill grid

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Can't get rid of oil stains and burnt spots on the fish grill? How to clean each part and 5 tips to prevent stains

Are you having trouble removing oil stains and burnt marks from your fish grill? Easy-to-understand explanations of cleaning methods using baking soda, sesquicarbonate of soda, and OxiClean for each part of the net, saucer, and interior of the refrigerator. We will also introduce 5 preventative measures to prevent stains.

2026.02.28鈴木遥

Image illustration of the washing machine lid being locked and not opening

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Can't open the washing machine lid? 6 reasons why you can't unlock the lock and how to deal with it yourself [by manufacturer]

We explain six reasons why the lid of your washing machine won't open or unlock (child lock, high temperature lock, poor drainage, power outage, dirty sensor, malfunction) and how to deal with it depending on the manufacturer. Based on official information from Panasonic, Hitachi, Toshiba, and Sharp, we have compiled a list of steps you can take to resolve the issue yourself.

2026.02.28鈴木遥

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