29
Lift does not move in downwards direction (right)
or upwards direction (left)
Code: “4”
Connect the molex testing link
The rail is on the leftside of the
stairs. The lift will not move up.
The voltage between M7-5 and
ground is 3,5 V
Main board P1 is faulty
The rail is on the righttside of the
stairs. The lift will not move down.
The voltage between M7-5 and
ground is 3,5 V
Main board P1 is faulty
The rail is on the leftside of the stairs.
The lift will not move up
The voltage between
M7-5 and ground is not 3,5 V
There is an obstacle blocking the
upperside of the pack or
the upperside of the footrest
There is a break in the current in the
line : M7-5, U9-4, U9-5, M7-7
The footrestswitch S8
is faulty
The rail is on the right side of the
stairs. The lift will not move down.
The voltage between
M7-5 and ground is not 3,5V
There is an obstacle blocking
the downside of the pack or the
downside of the footrest
There is a break in the current in
the line: M7-5, U9-2, U9-1, U9-4,
U9-5 and M7-7
The front chassis edge switch
S11 or S12 is faulty
The footrest switch S8,S9
is faulty
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