95
2016/01 Rev. 0.0
OptiFresh (Bean) NG 2.0
EN
10.4 TROUBlESHOOTING
Display
Possible cause
Action
Out of order
E1 Level error
Minimum electrode error: mini-
mum electrode detects no water
but maximum electrode does.
Inlet valve shuts.
Check that the level sensors are func-
tioning. See service menu
2.7 Hard-
ware test
. Switch the device off and on
again.
Water level up to max. level sensor?
Check min. Level sensor
calcification.
Switch the device off and on again.
Water under the min. Level sensor?
Check max. level sensor for cracks in
the insulation and check if capillar tube
of the boil-dry protection. This should
not touch the electrode tip.
Switch the device off and on again.
E2 Level error
Maximum electrode error:
maximum electrode not reached
within 30 sec. Inlet valve shuts.
Boiler fills up too slowly. Water
pressure has dropped or the wa-
ter tank (stand-alone) is empty.
Check the water pressure, turn the
water supply tap completely open and
check the connection tube for any kinks.
Switch the device off and on again.
E3 Fill error
Electrode error: minimum
electrode not reached within 90
sec. Boiler fills up too slowly
Water pressure has dropped or
the water tank (stand-alone) is
empty.
Check the water pressure, turn the
water supply tap completely open and
check the connection tube for any kinks.
Switch the device off and on again.
E4 Brewer error
Brewer was not started from its
initial position. Brewer motor not
turning.
Check the brewer motor function in
the service menu
2.7 Hardware test
.
Switch the device off and on again.
Check break pin of Brewer motor.
Replace if broken.
Check the brewer switch.
When brewer motor is in its home posi-
tion, switch lever must fall into driving
wheel notch. Contact must be closed.
When brewer motor rotates, switch
lever must be pressed IN. Contact must
be open.