Balboa Water Group GL/GS 230V - Manual (Page 19)

19
Basic Control System Troubleshooting
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.
Systems that use 230V peripheral devices (below):
Measure between the brown TB1 terminal and F6 power UÊ
input fuse on the side farthest away from the circuit
board edge (opposite the F6 silk screen). You should see
230 volts.
If the system is equipped with the additional F6 power
UÊ
input fuse, measure F6 in the same manner. You should
also see 230 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.
NOTE FOR ALL SYSTEMS
UÊ In each situation, the most
likely reason for the system power input fuse to blow
is a pump problem. However, on occasion, a blower
problem may also cause this fuse to blow if a 10A
blower fuse is not built in.
(cont. next page)
If the system is getting the proper voltage
at TB1, but still doesn’t operate, then test for
a blown power input fuse.
Terminal Block 1
&
F6 Power Input Fuse
on a GS500Z Board
TB1
HTR2 J101
J50
J57
J25
J32
J52 J51 F6, T30A 480V
J47
1
2
3
4
W1
Balboa
BALBOA INSTRUMENTS, INC.
GS500Z
COPYRIGHT 2007
MADE IN U.S.A.
P/N 22015_B
Pb
TB1 Marking
on Board
F6
Power Input Fuse