JULABO FLW11006 Recirculating Coolers - Manual (Page 24)

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8. Safety installations
8.1. Excess temperature protection
+

This safety installation is independent of the control circuit.
When the temperature of the bath fluid has reached the safety temperature
(85 °C), a complete shutdown of the compressor and pump is effected.
The alarm is indicated by optical and audible signals (continuous tone) and on
the LED-DISPLAY appears the error message "Error 14".
8.2. Low level protection
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
This safety installation is independent of the control circuit.
If the low liquid level protection device is triggered, a complete shutdown of the
compressor and circulating pump is effected.
The alarm is indicated by optical and audible signals (continuous tone) and on
the LED-DISPLAY appears the error message
"Error 01".

Turn off the unit with the mains switch, refill bath fluid and turn the unit on
again!
Caution:
For refill always use the same bath fluid type that is already in the bath.

Notice:
Check the low liquid level protection device at least twice a year!
To execute a functional test, drain the liquid until the alarm for low liquid level is
triggered. Refill liquid afterwards.
9. Troubleshooting guide / Error messages
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
Whenever the microprocessor electronics registers a failure, a complete
shutdown of the compressor and circulating pump is performed. The alarm light
" " illuminates and a continuous signal tone sounds.
The LED temperature display indicates the cause for the alarm in form of a
code.
Press enter to quit the audible signal
.
 The recirculating cooler is operated without bath fluid, or the liquid level is
insufficient.
Replenish the bath tank with the bath fluid.
 Tube breakage has occured (insufficient filling level due to excessive bath
fluid pumped out). Replace the tubing and replenish the bath tank with the
bath fluid.
Cable of the working temperature sensor interrupted or short-circuited.