16
Fault Displays
31
15. Fault Displays
An acoustic signal is sounded and “
xx” is shown on
display 6..
The heating element and pump are completely
switched off.
The following faults are possible:
=
Excess temperature
=
Low liquid level
=
Pump or motor overloading
=
Sensor breakage or short circuit
=
Undefined fault
=
Range exceeded
=
Parity fault
15.1 Excess temperature
The excess temperature protection can be triggered if:
•
Excess temperature has been set too closely to
the desired working temperature
⇒
increase value slightly according to specifi-
cations made in chapter 14.1.1.
•
the control function is defective
⇒
Return unit for servicing.
15.2 Low liquid level
The low liquid level protection can be triggered if:
•
there is not enough liquid in the bath
⇒
check for leaks, top up if necessary,
⇒
fluid has evaporated, top up if necessary.
15.3 Pump or motor overloading
The motor or pump is blocked:
⇒
It can take 10 min or longer, until the motor tem-
perature has sunk far enough so that the unit
can be switched on again by pressing the reset
key 2. If the circulator switches off again after a
short time, return the unit for servicing!
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