It turns off

The e1 code is a demand to clean the filter. It means the unit has been running for 720 hours. It does not mean anything is broken...unless it hasn't been running for 720 hours. That would mean the "clean the filter" timer is broken! There are 2 reset methods.

1) Unplug the machine. Hold down the power button while plugging it back in and wait until it beeps (for about 5 seconds). Let go of the power button. Unplug the machine again, then plug it in and try to use it as an air conditioner.

2) Unplug the machine. Hold down the Mode button while plugging it back in. Keep the mode button pressed until it beeps (for about 3 seconds). Let go of the mode button. The machine will start. Turn it off by pressing the power button. Resume trying to use it as an air conditioner.

If neither of these work, the "clean the filter" timer is broken and needs replacing.