5. Troubleshooting
fuse T4A
If a malfunction occurs, a message is displayed in the display
of the controller:
Operating control lamp
Warning symbol
Operating control lamp off
Check the power supply
o.k.
The fuse of the controller could be blown.
It can be replaced after the front cover
has been removed (spare fuse is enclosed
in the accessory bag).
Operating control lamp flashes red. The symbol and
the are shown.
Sensor fault. An error code instead of
a temperature is shown on the sensor
display channel.
-88.8888.8
Cable is broken.
Check the cable.
Short-circuit.
Check the cable.
Disconnected Pt1000 temperature sen sors
can be checked with an ohmmeter. In the
following table, the resistance values
corresponding to different temperatures
are listed.
Resistance values of
the Pt1000-sensors
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