Panasonic is a Japanese electronics company that is known for being one of the leading electronic companies in the world. The company was founded in 1918 and it was established in Osaka, Japan. Panasonic offers various electronic products such as televisions, cameras, washing machines, ovens and other home appliances.
If you are having issues with your Panasonic product or if you encounter errors while using your home appliances, then you might encounter error code H28 on your device’s screen. This error can occur when there is an issue with your device or it can occur when there is an issue with your power supply. Sometimes, common device errors or server problems can also cause this error.
Tech Support 24/7
Ask a Tech Specialist Online
Connect with the Expert via email, text or phone. Include photos, documents, and more. Get step-by-step instructions from verified Tech Support Specialists.
On this page, you will find more information about the most common causes and most relevant solutions for the AC error 'H28'. Do you need help straight away? Visit our support page.
Let's get started
It has never been easier to solve error "H28".
View list of solutions Contact an expertError information
-
Category
-
Error codeH28
-
ProductAC
-
DeveloperPanasonic
-
First seenSeptember 11, 2021
-
VerifiedYes
What causes the H28 error?
The Panasonic documentation indicates that error code 'H28' is caused by the following problem: "Outdoor heat exchanger temperature sensor abnormality".
Do you think there is another cause for this error? Let others know in the comments.
How to solve Panasonic AC error H28
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.
Tech Support 24/7
Ask a Tech Specialist Online
Connect with the Expert via email, text or phone. Include photos, documents, and more. Get step-by-step instructions from verified Tech Support Specialists.
Verified solution
Their air conditioning systems are known for being reliable and they have been manufactured for many years. However, if you encounter this error code, then you need to try a few solutions. There are several situations where sensors can become unresponsive due to disconnections or contact surfaces that have malfunctioned or gone bad from wear and tear. Trying to fix this problem involves removing the dirt that is causing problems from the sensors and reconnecting them.
Make sure your air conditioning system is off before you attempt to repair it. If you are having issues with your air conditioning system, then you need to try a few solutions. You can check if the sensors are unresponsive by checking if the unit will turn on at all. You can also try adjusting the thermostat by turning it up or down and making sure that it is not set to auto. If your unit still does not work, then you need to try a few solutions.
Use a soft but bristled brush to clean the contact surfaces of the sensors. After you have removed the dirt, place a small amount of lubricant on the contact surfaces. The purpose of this lubricant is to prevent corrosion from occurring. After you have applied the lubricant, then you need to reconnect the sensors and try to use your air conditioning system again.
You can replace the contact surfaces of your air conditioning system or you can replace your power supply. This is a difficult process because the compressor is located in an enclosed space inside of your air conditioning system and it is difficult to access without causing damage to your unit.
There could also be defects or abnormalities in the outdoor unit PCB or the wiring that connects the outdoor unit to the indoor unit. You need to clean any dirt or obstructions from your outdoor unit PCB and then reconnect it to your indoor unit. After you have reconnected your outdoor unit PCB, then you need to test your air conditioning system again.
There could also be a defect in the power supply that is used by your air conditioning system. There are several situations where power supplies can become unresponsive due to defective capacitors or power supply boards that have become damaged from excessive heat or overloading. This can be remedied by either cleaning the system, not leaving it on for long periods, or replacing faulty parts.
Have you found a solution yourself, but it is not in the list? Share your solution in the comments below.
