Faults -7
Version 1.36
02/2004
Water leakage - Machine left side.
Cause Action Ref.
1. Inlet valve scaled Inlet valve does not close properly due to scale and the 5A-7 / 5A-8
boiler overflows. Check replace inlet valve. Check also PL-3 / PL-10
the water hose for scale when the inlet valve is
replaced, as this scale may cause instant reoccurrence.
2. Tube between inlet valve Open left cover and check/correct. Always close left
and boilers queezed cover carefully in order not to squeeze/disconnect tube.
3. Machine has overboiled or Reset the machine. Unplug the power cord when
hot water has entered the before touching the reset switch.
overflow tube
4. Damaged boiler Check inlet of drain hose / inlet hose for small cracks.
Check connection between upper/lower part (welded).
Check front boiler leg for presence of cracks.
Replace boiler if necessary. 5A-1 / PL-4
5. Water level probe fault Check probe and its connections. Check if the GND 5A-5
(overflow) is connected.
Check boiler connector (24VDC) 5A-1(Illustr.)
Connect if necessary.
Heating element wiring not connected : no GND for
level probe pulse. Connect if necessary. PL-4
6. Boiler lid sealing not well Condensated water leaks through the sealing. Check 5A-5 / PL-4
the isolation at the side of the boiler opposite of the
frame for traces of water/scale.
7. Outlet valves not correctly Check / Correct.
installed
8. Outlet tubes not connected Check / Connect.
to nozzle
9. Boiler overflow (failing level Measure restistance between black (GND) wire of the SI038
detection due to poor power power board connector and the black (GND) at the back
board GND connection side of the board. If > 0 Ohm, replace power PCB.
If 0 Ohm, check Resistance between one of the black
(GND) wires and the lead (GND) in the middle of the
heating element plug. If >0 Ohm check
connections/wiring
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