SYSTRONIK
Troubleshooting
EUROLYZER® ST / STe
43
Problem
Possible reason
Repair
"CO value too
high"/“CO sen-
sor defective“
message.
CO sensor mal-
function.
Run device without ac-
cessories in fresh air.
CO measuring
range exceeded.
End of service
life of sensor.
Take device in for servic-
ing.
Incorrect
measured gas
values (e.g.
measured O
2
value too high,
CO
2
value too
low, no CO
values dis-
played, etc.).
Leak in measur-
ing system.
Check gas treatment sys-
tem for cracks and other
damage.
Check hose system for
cracks and other damage.
Check O rings of gas
treatment unit.
Check O ring of external
probe pipe.
Service mes-
sage.
Device has not
been inspected
for a longer pe-
riod.
Take device in for servic-
ing.
Measured gas
values are
displayed
slowly.
Filter in the gas
treatment system
is used up.
Check filter and replace, if
necessary.
Hose system
bent.
Check hose system
Gas pump pol-
luted.
Take device to service
centre.
Flue gas tem-
perature un-
stable.
Humidity in the
probe pipe.
Clean probe.
Device does
not switch on.
Battery empty.
Charge battery.
Take device to service
centre.
Other malfunc-
tions
–
Send the device to the
manufacturer.
