Philips Saeco Intelia Service Manual page 49

INTELIA
Saeco International Group
Operational check - coffee grinder and boiler
Initial Status
Press the aroma button to activate the coffee grinder
The coffee grinder starts to spin and the number of pulses is indicated by the
number circled in red, the other numbers have no signifi cance for this test.
ERROR:
If the number remains 0, the display changes to red, and the motor runs, the
problem lies in the Hall sensors, or their wiring, or in the CPU/POWER input
(JP2). If the motor does not run, the problem may lie in the chain (JP8), the
coffee grinder wiring or the actual coffee grinder.
Temperature control
The circled number expresses the boiler temperature in degrees centigrade.
ERROR:
If the HEATER indicator shows the word "SHORT", this means that the NTC
temperature sensor is in short circuit. The display changes from green to red:
in this case check the wiring on the NTC or the CPU/POWER inlet (JP13).
ERROR:
If the HEATER indicator displays the word "OPEN", this means that the NTC
temperature sensor is disconnected; the display changes from green to red;
in this case check the continuity of the NTC wiring, and check the connection
to the CPU/POWER in (JP13).
Press the coffee button to activate the boiler
The indicator changes from "OFF" to "ON" and shortly after the temperature
indicator should start to increase, and the ammeter on the counter must dis-
play an absorption of approximately 8 Ampere with 230 volt.
There is a further check to carry out if the temperature goes above 125°C
then the display changes to yellow and an alarm message appears on the
display. Above this temperature the boiler is always off, avoiding the risk of
dangerously high temperatures.
ERROR:
If the temperature is not absorbed check the boiler resistor, relative wiring
and the connection to the CPU/POWER in (JP19), also check the wiring on the
NTC (JP13).
Rev. 03
05 TROUBLESHOOTING
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