How to fix FAULT E4 Units faults on elegance KYD-25?

elegance mobile air-conditioner model KYD-25 error E4
runs for 30 min, will not switch on again, leave unplugged then try again till comes on for 30 min again. how to fix please
Martin, January 2015


done
E4 means interial water container is full
tip back to empty into a container so as not to wet the floor

peterb, October 2020