Notice
Date
Page
01201055
INSTRUCTION
HANDBOOK
Operating incidents
In order to limit the risk of failure in the electronic controls of the programming unit of the ma-
chine, the machine should be earthed. Should interferences happen, the first thing to be
checked is the earthing of the machine.
The programming unit permanently checks the machine, regarding both safety and working
aspects. To make the fault finding easier, the display window indicates in clear text the origin of
the failure, or the reason why the particular function cannot be used. The table below gives for
each problem detected the message of the machine and the solutions to be brought.
13. Maintenance
1298
1
13
NO WATER
- Electrovalve's filters are blocked.
- No water in main supply.
- Manual water valves (taps) are close.
- Electrovalves are faulty.
- Drain valve is open.
- Level tube is faulty or not come loose from mother
board.
- Level detection function on CPU PCB faulty.
Error/Function
Cause
Action
- Clean electrovalve's filters.
- Check water in main supply.
- Open taps.
- Check function of electrov-
alves.
- Check function of drain valve.
- Check that level tube is sound
and his raccordement.
- Replace PCB.
Water level has not reacher set
level within set time.
DOOR OPEN
- Door not locked.
- Fault in door lock switch or in wiring faulty.
- The PCB is faulty.
- Test whether door really
locked.
- Open the door and switch off
power to machine. Wait a minute
or so, switch on power supply
,close door again and try
restarting.
- Check wiring or replace door
lock as appropriate.
- Replace PCB.
Signal from microswitch which
detects when the door is locked
absent at program start.
NTC LOW TEMP.
- This suggests open circuit (continuity fault) in
sensor or wiring.
- Temperature sensor faulty.
- Fault in temperature sensing device on CPU PCB.
- Check the wiring temperature
sensor and replace as appropri-
ate.
- Replace temperature sensor.
- Replace PCB.
Temperature sensor indicating a
temperature below lowest
allowable value.
DOOR UNLOCKED
