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10
Troubleshooting
NOTE
A "SYSTEM FAULT" is only confirmed after switching the instrument off and on again.
Fault symptom or
display
No display
Conductivity display
instable
No metering in spite of
concentration undercut
Pre-metering
does not function
NO DETERGENT
CHANGE CONTAINER
NO DETERGENT
CHECK METERING
DETERGENT
OVERDOSAGE
LOW
TEMPERATURE
CHECK
CONDUCT. PROBE
SYSTEMS FAULT
MEMORY
SYSTEM FAULT 9
417102012_LMI02.doc
Cause/fault
Display does not light up, no
-
supply voltage or the fuse is
defective
Air lock in the installation area of
-
the conductivity probe
Metering enable input is not
-
closed
Rated value has changed
-
Product storage container empty
-
Max. metering time has expired
-
Release signal "VD start" is not
-
available
Metering enable is also active for
-
pre-metering
Product storage container is
-
empty
Delay time for pre-metering has
-
been set
-
Detergent storage unit is empty
Suction lance defect
-
Connection cable defect
Alarm delay time t max.
-
(DETERGENT DELAY TIME) set
too short
Metering pump is defective
-
Alarm delay time (detergent
-
overdose delay) is set too short
(local concentration overrun)
Relay for activation of "detergent
-
metering" output defective
This alarm appears as soon as
-
the wash tank temperature drops
below the preset limit and the
delay time for the alarm expires.
-
Conductivity probe or connecting
cable defective. Connector not
correct
-
Data in memory is incorrect
Communication between the
-
electronic boards has been
interrupted
Remedy
Check if there is supply voltage or
-
check that the fine wire fuse is OK.
Change fuse if necessary.
Check for air bubbles or insufficient
-
filling of pipes, follow
recommendation
Check the metering enable
-
connection on the instrument and
system
Correct rated value setting
-
Check level and level indicator
-
Check metering time limit
-
Check release signal to the system
-
Check metering enable signal
-
Check level and level indicator
-
Check time setting if necessary.
-
-
Connect new container
Replace suction lance
-
Change alarm delay time
-
Check metering pump (vent)
-
Change alarm delay time
-
Return instrument for repair
-
Check heating device
-
Change the temperature limit
-
Change the alarm delay time if
-
necessary
-
Check connector
Change the conductivity probe if
-
necessary
-
Return instrument for repair
Ensure that connector is correctly
-
connected.
Return the instrument for repair if
-
alarm message persists.
- 87 -
Rev. 10-01.09
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