How to Fix E9 Code on Hisense Dehumidifier

Dehumidifiers are often the most effective solution to high relative humidity levels in your home. However, like any appliance, it is common for a dehumidifier to encounter some errors when working. In particular, if you have a portable dehumidifier from Hisense, you may be wondering what the E9 error code means and how you can fix it. 

Hisense is a China-based multinational company known for producing low-cost home appliances. These include residential dehumidifiers with capacities ranging from 20 to 50 pints. The dehumidifier design and structure are similar to most other brands in the market except for a few minor differences. 

Hisense features much of the same control panel with automatic humidistat and button controls standard in modern portable dehumidifiers. Although considering its low costs, Hisense may not be the best dehumidifier brand you can find. 

How to Fix E9 Code on Hisense Dehumidifier

What does E9 mean in Hisense dehumidifier?

Choosing the best dehumidifier can be a difficult task, but it will also take a lot of care and proper maintenance to keep your dehumidifier functioning for a long time. However, no matter how well you maintain your appliance, specific problems may be unavoidable. For instance, one common error that owners of Hisense and Noma dehumidifiers encounter is the E9 code that displays on the digital screen.

In most cases, the manufacturer provides necessary information about the error codes and troubleshooting steps included in the dehumidifier’s manual. However, this is not the case with recent Hisense models. If you want specific instructions, you will need to contact Hisense customer service to fix your dehumidifier. 

If your Hisense dehumidifier stops working and displays the E9 error code on the screen, this may not be necessarily a cause for alarm. This error just means that the dehumidifier has stopped working, possibly caused by one of the following common reasons. It could be that the ambient temperature is simply too low, the coils are frozen, the humidity sensor is broken, the water tank is full or misaligned, the fan motor or blower wheel is defective, and other mechanical or electrical failures.

E9 mean in Hisense dehumidifier

How to Fix E9 Error in Dehumidifier

When you encounter this problem, the first solution you can try is to simply turn off the dehumidifier and then turn it back on. This is a classic troubleshooting tip for almost any electrical appliance and has worked for many users for a really long time. 

Check the water bucket

If this doesn’t work, check the dehumidifier’s water bucket if it’s full or misaligned. Empty any water and fix the tank’s placement. The dehumidifier will not resume operation if the bucket switch is not aligned properly.

Check the humidity and temperature 

Next, check the humidity and temperature in the room. The humidity level should be set around the ideal range of 30 to 50 percent. When the dehumidifier has reached your preferred setting, it should automatically stop. But if your dehumidifier is set to operate in continuous mode, it could get to a point where the ambient humidity is simply too low to continue dehumidifying. 

Furthermore, most dehumidifiers only work in temperatures as low as 41F and may even stop working as soon as the ambient temperature drops below 60F. The dehumidifier condenses the moisture on its coils, resulting in frozen coils if you operate the unit at low temperatures. Also, if the dehumidifier has a faulty humidity sensor or temperature bulb, it will give incorrect readings. 

Check for airflow

Listen for the sound of the air passing through the front and rear grill of the dehumidifier. There should also be a soft whirring noise from the fan inside the unit. If the airflow is blocked, the dehumidifier may not be able to work properly. Limited airflow may lead to frozen coils or an overheated compressor depending on the ambient air temperature. For instance, if your dehumidifier is in the bathroom, you can help improve the air circulation in the area by running your bathroom fan. 

Clean your dehumidifier

In most cases, a dehumidifier starts to encounter these common problems when it lacks proper maintenance and regular cleaning. Besides emptying the water, make it a habit to clean the tank at least once every week. Wash it with mild liquid soap and disinfect with a bleach solution or white vinegar. Switch off the unit before cleaning and keep the wire plug away from water.

Additionally, the air filter must be washed at least every month. It’s essential in keeping the air clean from dust, dirt, and other particles, as well as protecting the dehumidifier’s components. A clogged filter could also limit the airflow. Most dehumidifiers include an indicator light to remind you to clean the filter.

Contact a licensed technician

Inspecting the humidity sensors and other components will require more knowledge and experience in the task. Therefore, it’s best to just ask for help from Hisense customer service or contact a professional technician to know exactly what the problem with your dehumidifier is and get it fixed right away. 

In case you encounter any other problems with any dehumidifier, like water leaks, frozen coils, or too much heat, we have some guides that can help you solve them. But again, if you’re unsure about what you’re doing, we recommend calling a professional to find the right solution immediately and avoid making the problem even worse. 

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