4.3 REMOVAL OF THE TEMPER-
ATURE PROBE, AND UNIT
HEATING ELEMENTS (T3
VERSION ONLY)
The group is heated with a 300 W heating ele-
ments cartridge that is controlled directly by the
control unit accor
ding to the needs detected by
the temperature probe.
WHEN TO REPLACE THE PROBE
In the case where the screen shows the mes-
sage "Error probe unit x" it may be necessary to
change the probe which detects the temperature
of the unit. The likely reference values of the
probe unit operating at room temperature (22°)
are 1.08 kOhm and 1.37 kOhm at 90°.
If the values are extremely distant from these
values it is necessary to replace the temperature
probe.
HOW TO REPLACE
To remove the temperature probe simply discon-
nect the probe from the extension that connects
to the sensor card and unscrew the screw that
holds it in place using a Phillips screwdriver.
THE HEATING ELEMENTS
Should an abnormality occur in the manual reset
guard would interrupt the power to the heating
elements once the temperature reaches 135°.
If the circuit is opened by the guard, test the
heating elements.
Typical values of the heating elements at room
temperature are approximately 1,5 ohms.
Edition 01 of 08/2017
4.6
SERVICE MANUAL
Fig. 98
Fig. 96
Fig. 97
To Next Page
Loading...
Need help?
General
