JULABO FCW1600_1600S Recirculating coolers - Manual (Page 29)

Recirculating coolers
29
7. Trouble shooting guide
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ACTUAL SET
Whenever the microprocessor electronics registers a
failure, an alarm is triggered and a complete shutdown is
performed.
The alarm light illuminates and an audible signal is
triggered. An error message appears on the MULTI-
DISPLAY (LED 2).
Internal error
High temperature alarm
Low temperature alarm
The values reported by the safety sensor and the sensor in
the feed connector differ by more than 25 K (defective
sensor).
Low liquid level alarm
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 Internal errors
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Pump disconnection
Compressor disconnection
Heater disconnection
Turn the unit off with the mains switch (1), and eliminate the
malfunction. If the unit cannot be returned to operation,
contact an authorized service station.