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Er06 - Interruption of the safety circuit
Causes
› break in safety circuit
Effect
›
heating switched off
Solutions
› plug in contact plug
› plug in PT 1000 temperature sensor
› replace faulty connecting cable, plug, or contact thermometer
Er13 - Hotplate safety sensor, open-circuit
Causes
› target / current different of the adjustable safety circuit for minimum temperature
monitoring
Effect
›
heating switched off
Solutions
› after switching on, change the SAFE TEMP to a different value; if this solves the
issue, the previous value can be reset by switching the device off and on again
Er14 - External temperature sensor, short-circuit
Causes
› short circuit in temperature sensor plug
› short circuit in the cable or temperature sensor
Effect
›
heating switched off
Solutions
› check the plug
› replace the temperature sensor
Er22 - Fault during heating plate safety test
Causes
› S_CHECK cannot generate H_S_TEMP
Effect
›
heating switched off
Solutions
› switch device off, leave to cool and switch on again
Er24 - Heating plate temperature is higher than the set safety temperature
Causes
› s
afety temperature
has been set to lower than the current temperature of the
heating plate
› disconnection of heating plate control temperature sensor
Effect
›
heating switched off
Solutions
› leave the heating plate to cool
› set the safety temperature higher
Er25 - Heating switching element monitoring fail
Causes
› heater control circuit switch (TRIAC) short-circuited
› safety relay has interrupted the heating circuit
› heater or the supply line is disconnected
› disconnection of heating plate safety temperature sensor
Effect
›
heating switched off
Solutions
› switch device off, leave to cool and switch on again
Er21 - Fault during heating plate safety test
Causes
› safety relay does not open
Effect
›
heating switched off
Solutions
› switch device off, leave to cool and switch on again
Er31 – Fault in the heater switch element
Effect
›
heating switched off
Solutions
› contact customer service
Er44 – Heating plate safety temperature is higher than the set safety temperature
Causes
› the set safety temperature has been set to lower than the safety temperature of
the heating plate
› disconnection of heating plate safety temperature sensor
Effect
›
heating switched off
Solutions
› leave the heating plate to cool
› set the safety temperature higher
Er46 – Plate safety temperature > plate temperature (more than 40 K)
Causes
› irregular temperature distribution across heating plate due to sporadic heat dissi-
pation
› defective control or safety temperature sensor
Effect
›
heating switched off
Solutions
› switch device off, leave to cool and switch on again
› ensure regular heat dissipation when using metal blocks, etc� on the flat surface of
the heating plate
›
If the actions described fails to resolve the fault or another error code is displayed then take one
of the following steps:
-
contact the service department�
-
send the device for repair, including a short description of the fault�
Er26 – Plate temperature > plate safety temperature (more than 40 K)
Causes
› irregular temperature distribution across heating plate due to sporadic heat
dissipation
› defective control or safety temperature sensor
Effect
›
heating switched off
Solutions
› switch device off, leave to cool and switch on again
› ensure regular heat dissipation when using metal blocks, etc� on the flat surface of
the heating plate
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