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Error messages
Description
-12 TEMPERATURE MEASUREMENT
ALARM
Error in A/D converter.
-14 EXCESS TEMPERATURE
PROTECTOR ALARM
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.
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.
Electrical connections and any other work must be performed by qualified personnel
only.