Specifications

33
User’s, Installation and Maintenance Manual
7. Troubleshooting
STOP
Breakdown Cause Solution
The service lift
cannot ascend
nor descend.
DANGER!
Attempting to
use the lift will
jeopardize
work safety.
A1 The fixed EMERGENCY
STOP button is activated.
Turn this button clockwise until it moves out to deactivate it.
A2 Rack or pinions are damaged.
a) Check the damage.
b) Evacuate the cabin.
A3 The service lift is stuck on
an obstacle.
a) Remove the obstacle.
b) Test the operational safety of affected tower sections.
c) Inform the supervisor.
A4 Power failure.
a) Main switch is set to OFF.
b) Grid voltage is interrupted.
c) Supply between grid connection and control is
interrupted.
a) Turn the main switch to ON.
b) Find the cause and wait for the power to return.
c) Test and if necessary repair the supply cable, fuses,
and/or wiring from the control box.
A5 Two phases are changed in the
supply.
Have AVANTI or qualified personnel authorised by AVANTI
switch the two phases in the plug.
A6 The hatches or door switches are
triggered.
Check that door and hatches are properly closed.
A7 Motor thermal protection.
a) Rearm.
b) If repeated, contact AVANTI.
A8 ELECTROMAGNETIC BRAKES do not
open.
a) Check voltage to the electromagnetic brakes.
b) Check the springs.
c) Check the brake disc.
d) Regulate the brake disc.
A9 MAGNETIC THERMAL
CONTROL.
a) Rearm.
b) If repeated, contact AVANTI.
A10 CONTROL DIFFERENTIAL.
a) Rearm.
b) If repeated, contact AVANTI.
A11 OVER VOLTAGE
PROTECTION.
a) Rearm.
b) If repeated, contact AVANTI.
A12 EMERGENCY TOP AND BOTTOM
LIMIT SWITCH is
activated.
a) At top platform, perform manual descent until the switch
is released.
b) At bottom platform, disassemble the bottom plate safe
zone until the switch is released.
c) Check the position of the safe zone plates.
d) Check the top and bottom mechanical stop position.
A13 OVERLOAD
(overload light illuminates).
a) Test and if possible reduce the load, until overload lights
stops illuminating.
b) If repeated, contact AVANTI.
A14 (If trapped key system
1)
is provided)
the trapped key is not present or the
trapped key switch is in the OFF position.
Insert the key and turn it to the ON position.
A15 (If guard locking system
1)
of fences is
provided) the guard locking switch is
defective.
Test / repair defective components.
All tests and repairs to the electric components shall
be performed by AVANTI or qualified personnel
authorised by AVANTI.
The wiring diagram is placed in the traction
hoist’s power cabinet.
Repairs to the motor group and to the system’s
supporting components shall be performed by
AVANTI or qualified personnel authorised by
AVANTI.

If these steps do not identify the cause and rectify
the fault: consult AVANTI or qualified personnel
authorised by AVANTI.
1)
Guard locking or trapped key systems are mandatory for CE full sliding door version. Not necessary for CE bucket type version.
Mandatory for AECO version if send or call function is provided.