DKL CHAIRS L2-ECO, Operating Instructions Manual

Page: 43 / 266

SERVICE MODE!
Keep the push-button of the WSU pressed for 8 seconds.
The push-button of the WSU lights up white.
The mixing tank, the double-piston pump and, if necessary, all the
tubing of the dental unit are pumped empty. For this purpose, the
instruments and the glass fi ller must be activated to get the water
out of the water lines.
Completion of the emptying process is indicated by a white
double fl ashing. After that, the WSU is in standby mode. The
LED-ring of the push-button is switched off .
Push-button of the WSU fl ashes magenta. The WSU stops! The fi lling
process of the supplied water is too slow. Reset the WSU by keeping the
button pressed for 8 seconds and restart it by pressing the button briefl y. If the
magenta fl ashes continue, call customer service!
WARNING!
Push-button of the water separation unit (WSU) is fl ashing
yellow-red. Fault in the dosing unit. WSU continues to
work. Call customer service!
Error Messages and Service Mode
Push-button of the WSU is fl ashing red.
Call customer service immediately!
Push-button of the WSU lights up permanently red.
Immediately call customer service! Switch off the treatment
unit at the main switch! The overfl ow sensor has tripped!
There is a malfunction of the level sensor and / or the travel-
ling valve.
Push-button of the WSU lights up permanently magenta.
Immediately call customer service! Switch off the treatment
unit at the main switch!
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