Saeco OTC SERIES, Service Manual

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INCANTO 05 SERVICE MODE
6/9
Press and Release the Z4 button to switch on the pump (100
impulses)
The water goes out from the pipe and the indication
IMP
shows
increasing numbers. The indication L/H must be within the range
10-18.
ERROR: The display backlight changes from white to red and the
impulse remains 0; If water comes out the pipe: check the wiring
from the flowmeter to the CPU/POWER board (JP5). If no water
comes out the pipe: check the pump and the wiring from the pump
to the CPU/POWER board (JP24).
ERROR: The L/H is zero or very low; the Electro Valve does not
open. Check the wiring from the Electro Valve to the CPU/POWER
board (JP3) and the Electro Valve.
The machine passes to the level 5 (Heater-Grinder)
It is possible to hear the “click” from Electro Valve. The indication
beside the EV1 changes from “OFF” to “ON”.
Press Z7 “ ” to move to the next screen
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.
ERROR:
The number remains 0 or the grinder does not run, 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
white to red; check the wiring from the NTC temperature-sensor to
the CPU/POWER board (JP13).
230V