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PHILIPS 4000 and 3000
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.
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)
ERROR: The number remains 0 or the grinder does not run,or the
display backlight changes from white to red; check the Grinder and
the wiring from the Grinder to the CPU/POWER board (JP8)
Check the temperature
The number shows the heater temperature.
ERROR: In the indication HEATER appears "SHORT", the NTC
temperature-sensor is shorted, the display backlight changes from
green to red; check the wiring from the NTC temperature-sensor to the
CPU/POWER board (JP13).
ERROR: In the indication HEATER appears "OPEN", the NTC
temperature-sensor is detached or broken, the display backlight chang-
es from green to red; check the wiring from the NTC temperature-sen-
sor to the CPU/POWER board (JP13).
Press the Z1 button to switch on the Heater
The absorbed current ( Amperometer on the main supply) is OK, the
indication HEATER changes from "OFF" to "ON" and the
temperature starts increasing.
If temperature is over 100°C, the backlight change from GREEN to
YELLOW. This is a ALERT message to avoid heating the HEATER ele-
ment over dangerous temperature.
ERROR: the absorbed current is KO or the temperature does not
increase; check the wiring from the heater to the CPU/POWER
board (JP19) and the wiring of the NTC temperature-sensor (JP13).
05 SERVICE MODE
7/18
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