Cleaning / Repairing The Unit - Julabo FL1201 Operating Manual

Error messages
-12 TEMPERATURE MEASUREMENT
ALARM
-14 EXCESS TEMPERATURE
PROTECTOR ALARM
-20 WARNING: CLEAN CONDENSOR OR
CHECK COOLING WATER CIRCUIT
OF REFRIGERATOR

12. Cleaning / repairing the unit

Caution:
Always turn off the unit and disconnect the mains cable from the power source before
cleaning the unit.
Prevent humidity from entering into the circulator.
Service and repair work may be performed only by authorized electricians.
Notice:
Risk of injury for hands when mounting the venting grid.
Air cooled models = FL
To maintain the full cooling performance, clean the condenser from
time to time.
RS232 ALARM
•
Switch off the unit, disconnect mains power cable.
•
Hold the venting grid, pull out and remove.
•
Clean the ribbed condenser with a vacuum cleaner.
•
Replace the venting grid.
•
Switch on the unit.
Description
Error in A/D converter.
The return temperature is above the switch-off value of
the high temperature warning function of 85 °C.
Check dimensioning of application.
Use a stronger recirculating cooler if necessary.
Cooling of the condenser is affected. Clean air-cooled
condenser.
Check the flow rate and cooling water temperature on
water-cooled condenser.
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