afriso Minimelder-R Notice Technique page 63

9 Troubleshooting
Any malfunctions that cannot be removed by means of the measures
described in this chapter may only be repaired by the manufacturer.
Problem
Green LED is not on
Red LED is on
Red LED does not light
up, even though the
floating probe should
respond
Red LED is always on,
even though no alarm
is present.
Pressing the Test but-
ton has no effect
Other malfunctions
Troubleshooting
Possible reason
No supply voltage
Mains fuse defective
Flat cable not con-
nected to printed circuit
board
Alarm: Minimum level
or maximum level
reached
Floating probe not con-
nected
Line interruption in the
probe cable
Float of the floating
probe cannot move
Floating probe defec-
tive
Short circuit in the float-
ing probe
Line interruption in the
probe cable
Control unit defective
-
Repair
Apply supply voltage
Replace the mains fuse
Connect the flat cable
to the printed circuit
board
Remove the cause of
the alarm
Connect the floating
probe
Check the probe cable
Find a different position
for the floating probe
Replace the floating
probe
Check the floating
probe
Check the probe cable
Replace the control unit
Contact the AFRISO
service hotline
Minimelder-R / Maximelder-R
EN
29