Rational SCC Line - Indication Descaling;Service 12

-120-
S
Fault List SCC
Indication descaling /Service 12
Unit shows "Descaling of
steam generator necessary"
(Indication comes up every
time unit is switched on and
remains for 2 minutes)
Touch function key:
degree of scale is
shown
Activate and run descaling program.
At the end of the program the new filling
volume is generated automatically
Only 2 to 3 red bars less are shown on
the CDS indication
Was the descaling procedure sufficient?
(Visual check via level electrode)
Water supply not sufficient:
- Water pressure too low (below 50 kPa)
- Water filter soiled
- CDS Sensor soiled
- Water intake pipe of steam generator scaled up
(Pipe must be descaled separately)
Repeat descaling procedure
no
yes
Steam generator scaled up
CDS display shows 9 red bars
Info
Is additionally Service 12 shown?
CDS-Sensor does not create pulses
Check CDS-Sensor, cable and
connector.
no
yes