7596040 – MANUALE WO-20 EN 21052018 REV.1
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7
TROUBLESHOOTING
Before proceeding with the listed checks in the presence of functional anomalies, carry out these checks:
-
Check that the tap is open;
-
Check that the mains pressure is within the specified limits (see §2.5);
-
Check that the power supply is efficient;
- Check that the circuit breaker is in the ON position;
- Check that the flexible connections are not crushed or bent.
The checks marked with * can be performed by the user adequately informed and
referring to the various sections of this manual.
The checks marked with
must only be carried out by qualified personnel.
Problem:
The display does not turn on.
Cause
Solution
No electricity supply
Make sure the plug is inserted and there is electricity supply.
*
Circuit breaker
disactivated
Check if ON
(if it disactivates itself again do not insist but call the assistance).
*
Display cable
disconnected
Check the flat connection cable of the display to the board, fasten it
properly.
Defective display
Replace the display.
Defective board
Replace the board.
Problem:
Intervention of the fuse and protection circuit breaker.
Cause
Solution
Motor shorting out
Replace the motor and the protection fuses.
Wrong wiring
Check the state, isolation and tightness of the wiring.
Leakage
Check the state, isolation and tightness of the wiring; check the
status and functioning of the electronic board.
Problem:
Intervention of the protection differential switch (circuit breaker)
Cause
Solution
Intervention of circuit
breaker
Re-activate
(if it disactivates itself again do not insist but call the assistance).
*
Defective motor
Replace motor.
Wrong wiring
Check the state, isolation and tightness of the wiring.
Problem:
The display shows “Alarm Leakage.”
Cause
Solution
Leakage
Open the machine and check for leaks in the hydraulic circuit.
Anti-flooding probe
short circuit
Check the position of the probe, if directly in contact with the steel
tray, move it or deoxidize it with a paper towel soaked in alcohol.