When your portable air conditioner is not functioning correctly, it could be a sign that serious problems need technician. Or else, it can be solved by yourself too,
To troubleshoot the problems you have, here we sum up the Hisense portable air conditioner troubleshooting guide to fix them:
Hisense Portable Air Conditioner Not Cooling
First of all, before you jump even more into the Hisense portable air conditioner troubleshooting, you need to ensure that you use the correct size of Hisense portable air conditioner correctly. It’s essential to use the suitable ones to cool the room quicker.
Generally, it would be best if you looked at the BTU rating when it comes to the sizing of your room. 1 BTU is linked to the heat needed to rise. If you have a small room, try using the portable air conditioners under a BTU of 7,000 for 18 square meters roundabout.
For best results, take a look at this cheat code to confirm if you’re using the proper size:
- 8,000 BTU – 100-150 sq feet or 9-14 sq meters
- 9,000 BTU – 150-250 sq feet or 14-23 s meters
- 10,000 BTU – 250-300 sq feet or 23-28 sq meters
- 12,000 BTU – 300-350 sq feet or 28-33 sq meters
- 14,000 BTU – 350-400 sq feet or 33-37 sq meters
Once you’re sure about the size of your chosen portable air conditioner, you will need to ensure there’s no such thing as blocking the airflow of your air conditioner. Whether curtains, blinds, or furniture restrict it, it will affect the cooling performance. Moreover, you will need to check if the air filter has been cleaned in the last 30 days.
Next thing, take a look at the thermostat setting. Set it to the highest mode, which will provide you with a maximum cooling sensation. You may need to consider the room temperature where the Hisense air conditioner was located in and was first turned on.

The hotter the room, the longer it will take to cool the room down. It’s best to turn the portable air conditioner on when the room is in a cool temperature.
Hisense Air Conditioner Keeps Turning Off
This may sound simple, but checking your mode should be the first thing to do. Indeed, go double-check them. If it shows in smart mode, the temperature relies on the temperature around the room. Thus, assure yourself to set your portable air conditioner on cool mode.
In addition, you can try to keep the unit far from walls and place it to an open area instead. As stated above, how the air flows is the key to performing in its best.
Do you find it helpful by reading through the Hisense portable air conditioner troubleshooting? If you still have issues with the unit, something must be going wrong with them. In this case, you will need an expertise air conditioner technician.
AirconMag is an experienced author and Air Conditioner expert. With years of practical experience in the field authored several informative articles on various aspects of AC unit, including installation, maintenance, and repair