Philips HD 8753, Service Manual

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INTELIA 05 TROUBLESHOOTING
Saeco International Group Rev. 01 / September 2011 Page / 11 08
When the unit reaches the HOME position the indicator changes from “N” to When the unit reaches the HOME position the indicator changes from “N” to
“Y”, the absorbed current, without the brewing unit, must be less than 200, “Y”, the absorbed current, without the brewing unit, must be less than 200,
and with the brewing unit less than 300 mA and with the brewing unit less than 300 mA
ERROR condition: ERROR condition:
The HOME indicator always stays on “N” The HOME indicator always stays on “N”
ERROR: ERROR:
The HOME indicator changes, and remains permanently on “N”, while the The HOME indicator changes, and remains permanently on “N”, while the
display changes from green to red; check the microswitch, unit motor (this display changes from green to red; check the microswitch, unit motor (this
may be blocked) and the wiring JP16. may be blocked) and the wiring JP16.
ERROR (without brewing unit): ERROR (without brewing unit):
If the absorbed current exceeds 200 mA the display turns red, check the If the absorbed current exceeds 200 mA the display turns red, check the
gears on the gear motor and the motor housing in its seat. gears on the gear motor and the motor housing in its seat.
Initial status Initial status
Press the espresso button to activate the solenoid valve
Press the aroma button to activate the pump
Press the espresso button to move the brewing unit to the “HOME” position
Operational check - solenoid valve and pump
ERROR (with brewing unit): ERROR (with brewing unit):
If the absorbed current exceeds 300 mA the display turns red, check the If the absorbed current exceeds 300 mA the display turns red, check the
brewing unit, the gears on the gear motor and the motor housing in its seat. brewing unit, the gears on the gear motor and the motor housing in its seat.
If the dreg drawer is in position and the side hatch closed, the EV cannot be If the dreg drawer is in position and the side hatch closed, the EV cannot be
done. If it is not in the right position, a warning message is shown on the done. If it is not in the right position, a warning message is shown on the
display, which turns yellow. display, which turns yellow.
The indication next to EV1 changes from “OFF” to “ON”. The indication next to EV1 changes from “OFF” to “ON”.
You can hear the “click” of the solenoid valve. You can hear the “click” of the solenoid valve.
The water is dispensed from the steam pipe IMP indicates an increasing The water is dispensed from the steam pipe IMP indicates an increasing
number of pulses. L/H must be between 10 and 18. number of pulses. L/H must be between 10 and 18.
ERROR: The back-lit green display changes to red and the pulse remains ERROR: The back-lit green display changes to red and the pulse remains
0 even if water comes out of the steam pipe, check the wiring on the fl ow 0 even if water comes out of the steam pipe, check the wiring on the fl ow
meter (JP5). If water does not come out of the steam pipe, check the pump meter (JP5). If water does not come out of the steam pipe, check the pump
and the pump wiring (JP24). and the pump wiring (JP24).
Press STAND_BY “ Press STAND_BY “ ” to move to the next screen ” to move to the next screen
ERROR: If L / H is 0 or very low, the solenoid valve does not open. Check the ERROR: If L / H is 0 or very low, the solenoid valve does not open. Check the
solenoid valve and the wiring (JP3). solenoid valve and the wiring (JP3).