While most Japanese residences do not have central heating and air conditioning, they do typically come with at least one wall-mounted air conditioner installed in smaller apartments and multiple wall units positioned throughout larger homes. This is a great relief for renters, both in the sweltering heat and humidity of summer as well as in the cooler winter months when the air conditioner's heating function comes in handy.

Air conditioners in Japan generally work via a remote control. For those new to Japan or who are looking to access the full range of typical air conditioner functions, it can be tricky to navigate the Japanese-language menus and buttons. Keep reading to find what main functions your air conditioner is likely to have and how to turn them on and off with the remote control.

Translating the Remote Control for Your Japanese Air Conditioner

A Japanese air conditioner generally has the same settings and functions as modern wall-mounted air conditioners in other countries. However, with all the settings written in Japanese (much like Japanese toilets), they can be difficult to understand. Below are some of the main settings and functions available on a standard Japanese air conditioner.

Different Modes

With such a range of options available, it can be easy to just stick to the basics and not explore the rest of the air conditioner's functions. However, some of the additional modes and functions can be very beneficial during different times of the year.

Of course, during summer, we all want to use the standard cooling mode. Coming in from the hot sun into a cool, air-conditioned room is one of the best feelings of summer. However, the dehumidifying mode can also be very useful. As mentioned, summer in Japan is very hot. However, it is also very humid. This can lead to issues with mold in the home and uncomfortable, sticky air. The dehumidifier setting can reduce some of the humidity, help protect your house from mold and associated issues, and in the process, often help to cool down the room as well. This is especially useful during the rainy season when you may be drying clothes inside or have wet umbrellas and shoes in your front entry.

In winter, there are a range of options for heating rooms, including oil-burning heaters, space heaters, and so on, but one of the most convenient and easiest options is using the heat setting on the air conditioner. This will warm the room up quickly and without any ventilation issues.

For those worried about the environmental impact of using air conditioners too much, or even just about the high cost of constant air conditioner use, the eco function can be useful. Many modern air conditioners include an eco mode, which conserves energy and maintains the temperature without using as much electricity. This means the electricity cost is less and the impact on the environment is lower.

Cleaning and Maintenance

As with anything in your house, the air conditioner can get dirty. We often don’t think about it, but the inside of the air conditioner can get dusty and moisture can build up, potentially causing mold issues. Some modern air conditioners have a self-cleaning mode that can be utilized to help avoid this. However, even self-cleaning air conditioners should be manually cleaned sometimes. This is best done on a regular basis.

Cleaning the air conditioner involves opening the front of the unit to access the filters inside. These should be wiped free of dust. The filters can then be removed and washed more thoroughly under water. The inside of the unit should also be wiped clean of dust. After the filters have dried, they can be reinstalled inside the air conditioner and the outside of the unit can be wiped down. This allows the air coming through your air conditioner to stay fresh and mold-free. It is also possible to hire a professional cleaner to do a more thorough cleaning if there are issues with the air conditioner or you feel it needs a deep clean.

When it comes to malfunctions or issues with the air conditioner not working as normal, it is best to consult a professional air conditioner repairman or the manufacturer rather than attempt any repairs yourself. 

More Ways to Beat Japan’s Summer Heat

Air conditioning is a great aid to living comfortably, especially in countries with large changes in weather. With Japan’s hot, humid summers and cold winters, air conditioners are an extremely useful part of everyday life. However, it can be difficult to navigate the various settings, functions, and modes. Here we have covered some of the most common settings to help make your life more comfortable. Cleaning and general maintenance is also an important aspect of using an air conditioner and should be done regularly. Hopefully with this guide, you can use your air conditioner in Japan to the full extent of its capabilities.