RESIDENT DIAGNOSTICS
Alarm 11 (EPROM fault)
This alarm is activated if the diagnostics detect a fault in the memory of the electronic control unit that stores the
operating program. The fault will be indicated when the system is switched on, and the operation of the lift remains
inhibited. A fault of this nature can only be remedied by replacing the electronic control unit.
Alarm 12 (Position sensor disconnected)
This alarm will be activated in the event that:
— The sensor is faulty
— The wiring is defective or not connected to the sensor
— The wiring is short circuited to earth
— The electronic control unit is faulty
To remedy the trouble, check initially:
— That the position sensor connector and the relative wiring are properly connected
— That the lead connecting the sensor to the electronic control unit is electrically sound
— That the lead is not short circuiting
Alarm 13 (Short circuit on up/down solenoid valve)
This alarm will be triggered if there is any trouble with either of the two directional control solenoid valves.
To remedy the trouble (raise and lowering) proceed as follows:
— Connect the All Round Tester to the control unit;
—Access menu 1 (LIFT P.) and select option 1 (Tests);
— From the "Tests" page, select option 3 (Dynamic test);
— Take the lift arms up or down pressing the switch "F" or "D" on the keyboard of the ALL ROUND TESTER; on
display appear the indication which the valve solenoid is fault.
A fault can be attributable to:
— Short circuit at the valve solenoid
— Short circuit in the wiring
— Electronic control unit faulty
Alarm 14 (Up solenoid valve disconnected)
This alarm will be activated in the event that:
— The Up solenoid valve has developed an electrical fault (permanently open)
— The wiring is defective or not connected to the valve solenoid
— The electronic control unit is faulty
To remedy the trouble, check initially:
— That the solenoid connector and the relative wiring are properly connected
— That the lead connecting the solenoid to the electronic control unit is electrically sound
Alarm 15 (Down solenoid valve disconnected)
This alarm will be activated in the event that:
— The Down solenoid valve has developed an electrical fault (permanently open)
— The wiring is defective or not connected to the valve solenoid
— The electronic control unit is faulty
To remedy the trouble, check initially:
— That the solenoid connector and the relative wiring are properly connected
— That the lead connecting the solenoid to the electronic control unit is electrically sound
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electronic power-lift
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