Read operation temperature of
the unit from monitoring page.
F14 Overtemperature fault
Did value correspond
to ambient
temperature.
NO
YES
F14 displayed.
Check logged
data in
fault history.
External fault:
Temperature is too
high.
Internal fault: Check the
temperature
measurment circuit.
NOTE!
FR9: Power board has its own
temperature measurement, which
can activate F14.
Check
operation of
the fan
Did fan operate
properly?
External fault: Make sure
that unit gets clean air.
Check condition
of the cooling
element.
NO
YES
Internal fault: Check
circuitry for the fan and
the fan itself.
Was the cooling
element clean?
NOYES
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