Siemens KDN Series Operating Instructions Manual page 15

ea e c ec w e e y
ma .
C me e v ce w c a e y
a a ee
Fault
Temperature differs greatly
from the set value.
Light does not function
Display on fascia is lit at
reduced luminosity.
Displays do not illuminate.
ca e m a e e a
adv ce eve
Possible cause
Fig. 1/3 or 1/7
y e a ed
e app a ce
Remedial action
e w
de
high
low
Fig. 0
15