Troubleshooting
LEAK
COMP
®
1C
www.leakcomp.de
31
of
34
9
Troubleshooting
9.1
Blue LED remains off
The blue LED serves as an operating display. A pulsating
blue
LED
indicates that the mains voltage is present, as well as
proper connection of the phase (
L
), neutral conductor (
N
) and
protective earth conductor (
PE
) and fault-free operation.
è
Make sure that the phase, neutral and protective earth
conductors are correctly connected and the mains supply
between phase and neutral conductor is present.
9.2
Red LED is flashing
Incorrect phase allocation
When the supply voltage is switched on, the device first carries
out a self-test, which detects and if necessary corrects the
correct assignment of the phase (
L
) and neutral conductors (
N
).
If phase and neutral are swapped, the red LED flashes.
è
Ensure that the phase and neutral are connected correctly
and not reversed.
Protective earth conductor missing
The proper connection of the protective earth conductor to the
PE
terminal is determined
during the self-test of the
LEAK
COMP
®
1C
. The compensation current can only flow if the
protective earth conductor is connected to the compensation connection of the device. If
the protective earth conductor is not connected to the
PE
terminal on the
LEAK
COMP
®
1C
,
the red LED flashes.
è
Make sure the protective earth conductor is firmly connected to the compensation
connection on the
LEAK
COMP
®
1C
with low resistance.
Neutral conductor voltage
If too high of a potential difference between the neutral and protective earth conductor is
identified, then this is also detected by the
LEAK
COMP
®
1C
and indicated by a flashing
red LED.
è
Please measure the voltage between the neutral and protective earth conductors with
a suitable measuring device. If there is voltage between the neutral and protective
earth conductors, there is an installation problem with the system wiring that must be
dealt with before the starting the
LEAK
COMP
®
1C
. This does not generally cause a
defect in the device.
WARNING
In the event of a permanently raised voltage (>10V) between the neutral and
protective earth conductors or terminals
N
and
COMP
, a defect may occur in the
LEAK
COMP
®
1C
.
