Manual
19
LOW VOLTAGE
At Balboa, it’s been our experience that the majority of the
problems associated with electronic control systems are due
to low voltage.
BROWN OUTS
“Brown outs” can have an effect on the spa’s operation in
a variety of ways. The control panel may go blank, have
scrambled messages on the LCD, or only a few features
will function.
CHECKING THE SYSTEM POWER INPUT FUSE
Warning
These procedures are performed while the system is
powered up and running under peak loads. Be careful.
If your system uses 120V peripheral devices (below):
Measure between the white TB1 terminal and F5 power UÊ
input fuse on the side farthest away from the circuit
board edge (opposite the F5 silk screen). You should see
120 volts.
If the system is equipped with the additional F6 power UÊ
input fuse, measure F6 in the same manner. You should
also see 120 volts.
If your system uses 240V peripheral devices (below):
Measure between the red TB1 terminal and F5 power UÊ
input fuse on the side farthest away from the circuit
board edge (opposite the F5 silk screen). You should see
240 volts.
If the system is equipped with the additional F6 power UÊ
input fuse, measure F6 in the same manner. You should
also see 240 volts.
If you determine that there is no voltage at one or both UÊ
locations, then the system power input fuse(s) need to
be replaced. Only use a fuse of the same type and amp
rating when you replace any of these fuses.
Elite System
Measure fingers 5 and 6 of the circuit board. You should UÊ
see either 120V or 240V, depending upon the system
configuration.
If you determine that there is no voltage at fingers 5 UÊ
and 6, then the system power input fuse needs to be
replaced. This fuse is located in the large fuse block
inside the system box. This configuration utilizes a 30A
time delay fuse.
If the system is getting the proper voltage
at TB1, but still doesn’t operate, then test for
a blown power input fuse.
RED AC
WHT AC
BLK AC
J32
J61 J62
J11
J66 J65
J15
J16
J25
J63
J64
J33 J34
J36 J37
J35
TB1
CLASS G FUSE 30A
F5
K4
Balboa
TORQUE
RANGE
FOR TB1:
27-30 IN. LBS.
HOT
BLACK
NEUTRAL
WHITE
HOT
RED
Terminal Block 1 & F5
Fuse on a VS500Z Board
TB1 Marking
on Board
F5 Fuse