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Hitachi AC error 59

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Last updated on September 27, 2022
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Hitachi is a Japanese electronics company that is known for being one of the most popular home appliances manufacturers in the world. Hitachi has manufactured home appliances for more than 100 years and it is known for being one of the oldest manufacturers in the world.

The company was established in Hitachi, Ibaraki, Japan in 1910 and it was established by Namihei Odaira. The company started to produce household electrical appliances such as fans, air conditioners, refrigerators and washing machines.

Hitachi manufactures many different types of home appliances including microwave ovens, dishwashers, cooktops, dryers, refrigerators and many other types of products. The company is also known for its digital cameras and computer accessories.

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On this page, you will find more information about the most common causes and most relevant solutions for the AC error '59'. Do you need help straight away? Visit our support page.

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Error information
  • Category
    Heating
  • Error code
    59
  • Product
    AC
  • Developer
    Hitachi
  • First seen
    September 7, 2021
  • Verified
    Yes
JustAnswer
JustAnswer
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What causes the 59 error?

The Hitachi documentation indicates that error code '59' is caused by the following problem: "FET failure, power supply, fan motor for whistle".

Do you think there is another cause for this error? Let others know in the comments.

How to solve Hitachi AC error 59

We've created a list of solutions which you can follow if you want to solve this AC problem yourself. Do you need more help? Visit our support page if you need professional support with AC right away.

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Verified solution

You have probably come to us because you own an air conditioner manufactured by Japanese company Hitachi. Some of the optional functions that you can select on a Hitachi air conditioner include a function that allows you to stop your air conditioner from becoming too hot or dirty, a summer timer that can be set to automatically shut off when you are not using it, and a tariff function that can be enabled or disabled according to your individual needs.

Users should limit themselves to cleaning the AC filters alone. Other problems may require the assistance of a professional. There are other problems that require the intervention of a professional. Hitachi air conditioners are covered by extensive warranties. It is not recommended to hire a third-party AC repair technician to repair Hitachi ACs while the warranty period is still valid. Consumers should contact Hitachi online to make service requests.

The air conditioning system is a major part of your home and if you encounter errors while using your air conditioning system, then you might encounter error code 59 on your device’s screen. This error can occur when there is an issue with your air conditioning system or it can occur when there is an issue with your electrical power supply.

The 59 code, however, usually refers to a faulty AC chopper circuit. This circuit is usually caused by a shorted, open or dirty line on the AC line side of the unit. This is usually caused by a defective switch on the AC line side of the unit. In most cases, you can fix this problem by replacing the AC line switch.

It can occur when the FET or power supply or the fan motor controller is defective or the power supply or fan motor is not working properly. Hitachi AC service technicians can diagnose and repair the problem easily.

In addition, you can also inspect your AC unit for corrosion. This is an issue that can be caused by water or dust entering the unit through the intake vents and condensation dripping from the compressor and evaporating on the cooling fins. To fix this problem, you need to clean your AC unit with an air compressor or a shop vacuum cleaner with a wide nozzle and clean all internal parts with compressed air to remove dust, dirt and debris.

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