If you have a portable dehumidifier from Hisense, you may run into the E9 error and be wondering what the E9 error code means and how you can fix it.
Dehumidifiers are often the most effective solution to manage high relative humidity levels in your home. However, like any appliance, it is common for a dehumidifier to encounter some errors from time to time.
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.
Hisense features much of the same control panel with automatic humidistat and button controls standard in modern portable dehumidifiers. Generally following in the low cost category, Hisense is not our pick for the best dehumidifier brand on the market, but many users have had good luck with them.
What does E9 mean in Hisense dehumidifier?
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.
If your Hisense dehumidifier stops working and displays the E9 error code on the screen, this may not be necessarily a cause for alarm.
What’s confusing about this error, is that it 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
- Other mechanical or electrical failures
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 always the case with recent Hisense models.
My suggestion is to start by checking the list of items above to see if you can identify an obvious issue. If you need further specific instructions and can’t find more information in your product manual, you will need to contact Hisense customer service to fix your dehumidifier.
How to Fix E9 Error in Dehumidifier – Troubleshooting Tips
1. Turn the Dehumidifier Off
When you encounter the E9 code 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. If that doesn’t work, try leaving it off for around an hour, and then turning it back on.
2. Check the water bucket
If that didn’t work, check the dehumidifier’s water bucket to see if it’s full or misaligned. Empty any water and ensure the tank is fixed in place. The dehumidifier will not resume operation if the bucket switch is not aligned properly.
3. 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 55 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 – you could sanity check this using a separate hygrometer and thermometer.
4. 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. No airflow could be caused by a broken fan, or possibly a dirty or clogged air filter.
5. Clean your dehumidifier
In most cases, a dehumidifier starts to encounter these common problems if not properly maintained and regularly cleaned. Besides emptying the water, make it a habit to clean the tank at least once every week or so. 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 should 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.
6. 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.
7. Choosing a replacement dehumidifier
If you’ve tried it all but haven’t been able to find a fix, it may be worth considering a new dehumidifier with the latest features and technology. If you do decide you want to check out your options, we recently published a guide with the latest dehumidifier models from Hisense, as well as the best dehumidifiers in other categories such as the most quiet dehumidifiers.