Philips HD8847/19 - Electro Valve & Pump Test

PHILIPS 4000 04 DIAGNOSTIC MODE
5/8
Press the Z1 button to open the Electro Valve
IMPORTANT NOTE: If the DREGDRAWER is not inserted or the DOOR is not
closed the EV test cannot be performed. If these 2 inputs are not in the right
position, a warning message will be shown and the display turns to yellow for
HD models or red for EP models.
Press the Z4 button to switch on the pump
e water goes out from Pannarello (CMF), cappuccinatore (AMF) or water
spout (OTC) and the indication IMP (impulse) shows increasing numbers. e
indication L/H (liters for hour) must be within the range 10-18.
ERROR: e display backlight changes from green (HD Models) or white (EP
Models) to red and the impulse remains 0; If water comes out the pipe: check the
wiring from the owmeter to the CPU/POWER board (JP5 Electrical diagram).
If no water comes out the pipe: check the pump and the wiring from the pump
to the CPU/POWER board (JP24 Electrical diagram).
ERROR: e L/H value is zero or <10; the Electro Valve does not open. Check
the wiring from the Electro Valve to the CPU/POWER board (JP3 Electrical
diagram) and the Electro Valve
e machine passes to the level 5 (Heater-Grinder)
It is possible to hear the “click” from Electro Valve. e indication beside the
EV1 changes from “OFF” to “ON”. If the indication EV1 doesn’t change and
remain “OFF”, check the electro valve, replace it (with a one of stock) and if
doesn’t change again, check the cable (disconnected?) or replace the CPU
board.
Start condition
e machine passes to the Page 4 (EV - PUMP)
Page 4 (EV - PUMP): This test directs the correct operation of the electro valve and pump:
Press Z7 “ ” to move to the next screen