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PHILIPS 4000
Page 5 (Heater , Grinder):
This test directs the correct operation of the Boiler and the Grinder:
Start condition
Press the Z4 button to switch on the grinder.
The grinder rotates and in the indication GRINDER the number increasing up
to 5000 (5seconds test). The other numbers inside the GRINDER box are not
important for this test (this screen is for HD Models).
7000
7 sec. grinding in medium aroma (the number can vary during operation
of the machine)
5000
5 sec. grinding of the coffee grinder in functionality test
523
Number of half-waves that reads the sensor (may vary)
2273
Average distance of the sensor impulse beds (may vary)
2000
Average of the last 4 millings in the normal mode as above (2273)
This screen is for EP Models.
ERROR: if the numbers remains 0 or the grinder does not run,or the display
backlight changes from green (for HD models) or white (for EP models) to
red; check the operation of the Grinder or the wiring from the Grinder to the
CPU/POWER board (JP8 Electrical diagram)
Check the temperature
The number shows the heater temperature.
ERROR: In the indication HEATER appears "SHORT", the NTC temperature-
sensor is in short circuit, the display backlight changes from green (HD Mod-
els) or white (EP Models) to red;
ERROR: In the indication HEATER appears "OPEN", the NTC temperature-
sensor is detached or broken, the display backlight changes from green (HD
Models) or white (EP Models) to red; check the wiring from the NTC temper-
ature-sensor to the CPU/POWER board (JP13 Electrical diagram).
Press the Z1 button to switch on the Heater
The absorbed current ( Amperometer on the main supply) is OK, the indica-
tion HEATER changes from "OFF" to "ON" and the temperature starts increas-
ing.
04 DIAGNOSTIC MODE
6/8
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