Alber E-Motion ECS Instructions For Use Manual page 49

Permanent
Cause: The batteries of the ECS are almost empty.
Measure: Please replace the batteries of the ECS remote
control as soon as possible (see chapter 8).
Permanent
Cause: This symbol indicates that there is a fault in the
e-motion wheels
or
the ECS remote control has lost the radio connection to
the e-motion wheels, or no e-motion wheels have been
found after the ECS remote control was switched on
or
the pairing process has failed.
Switch the ECS remote control off and then on again.
Otherwise, the ECS remote control switches off auto-
matically after 20 seconds.
49