There are several reasons why your dehumidifier may suddenly turn off automatically after running for a while.
In most cases, your dehumidifier shuts off when the humidity of the room reaches a pre-set acceptable level and will only turn back on when it detects the humidity to be outside of this range. If this is the case, then there is nothing wrong with your dehumidifier and it is working as expected.
To check that this is the case, you can measure the humidity level of your home with a hygrometer. Several of our devices already have built-in hygrometers and digital displays to show you the humidity level. If the humidity level is at an acceptable range (approximately 40-55%RH), then there is no need for concern. Alternatively, several of our products have a laundry mode; try using this setting to make sure that the dehumidifier is still working. You could also try moving your appliance to a different part of your home where the humidity level is highest.
If, however, this is not the issue then it is important to check the filter inside the machine. When not regularly cleaned and replaced, this can cause a build-up of dust in the machine preventing it from working effectively. Another issue to have in mind is the ambient room temperature; if the temperature falls below 15 degrees Celsius then our compressor units tend to be less effective.