8.1 PROBLEMS IN CONNECTION WITH THE ELECTRONIC BOXES'S CONTROL
BUTTONS
If it is displayed P1, P2 ... or P5, this means that the corresponding key is in short-circuit and can't be used any more.
Remedy:
- Check that the front is not deformed
- Change the electronic box
8.2 FUSE PROBLEMS
F -
Display:
F- is displayed when the fuse located at the back of the electronic box is "cut out".
The fuse can be reached from the upper part of the machine after removing the cup warmer.
If the fuse is "all right"
Check the fuse-holder
Clean fuse / fuse-holder contact points
Check the box connections:
Do not invert wires
(valve and motor-pump wires)
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If the fuse is "cut out"
The cause must be determined, prior to fuse
replacement.
Possible causes:
- The valve coil of the unit is short-
circuited
- The motor-pump coil or R.C circuit
is short-circuited
- The motor-pump or valve outlets
of the electronic box are short-
circuited (inside the box)
- Cables are short-circuited
- Fuse failure.
- Replace faulty elements
- Replace the fuse