23
POWER
MODEL LA400U
SYMPTOM: Operator does not have power.
Battery
12V 7AH
Battery
12V 7AH
CONTROL BOARD
J15 Plug
Black
Red
CONTROL BOX
3
Check the batteries.*
Check the battery connections. Make sure two 7AH batteries OR two 33AH
batteries are connected in series. Check the voltage coming from each battery
by disconnecting the battery from the operator. A fully charged battery should
read 12.8 to 13.3 Vdc per battery. If not, replace the batteries.
4
Check the control board.*
Try replacing the fuse.
If that does not work, replace
the control board.
*
CONTROL BOARD
(Back of Outlet Housing)
Outlet
Outlet
HOT
NEUTRAL
GROUND
Black
Green
White
Incoming Power
Incoming Power
1
Check the
incoming power.*
Check breaker first, then
check wiring coming
into operator.
The reading should
be 120 Vac.
OUTLET HOUSING
DIAGNOSTICS
2
Check the transformer.*
Check the voltage coming
from the transformer
(red and black wires at the
CHARGER terminals).
The reading should be
34 Vdc (+/- 10%).
If not, replace the transformer.
Black
Red