Grunbeck GENO-UV 120 S, Operation Manual

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Maintenance and Care - Customer Service Section
GENO ® UV systems with GENO ® -Multi BS
-CONFIDENTIAL-
Order no
. 024 523 950-gb Edited by: KONS-mhug-mrie G:\BA-523950-GB_KD-G.DOC
G-6
Continuation Table 1:
This is what you observe This is the cause This is what to do
Er 4 Excess temperature (only when the
optional temperature flushing sys-
tem is installed).

Water temperature > 40 °C.

Set rinsing temperature lower.

Check the functionality of the
rinsing valve.
Er 5 or display EEEE. Wire fracture of UV sensor or sen-
sor signal 4-20 mA interrupted.

UV sensor connection plug in-
serted correctly?

Optional USB data recording
device wired incorrectly?
Er 6 or Er 7 Wire fracture or short circuit of the
temperature sensor (only when the
optional temperature flushing sys-
tem is installed).

Temperature sensor = PT100,
meaning sensor resistance is ap-
prox. 125 ohms at 25 °C.
Display and all LEDs dark. Mains switch is switched off.
Power supply is interrupted (inte-
grated fuse, supply line).

Switch on mains switch.

Replace the glass tube microfuse
T 2 A (see chapter D). For this
the fuse terminals are folded out
downwards and then to the
right.
"Operating duration" LED flashes. Service interval has elapsed. Carry out maintenance and restart
the service interval.