Balboa Water Group BP600 Troubleshooting & Service Manual page 14

Basic Control System Troubleshooting (cont.)
THESE READINGS SHOULD BE TAKEN UNDER
PEAK LOAD CONDITIONS.
IMPORTANT
If the voltage is not in the acceptable range, call
an electrician or the local electric company to diagnose
the problem.
TO DETERMINE THE CAUSE OF A BLOWN POWER INPUT
FUSE
Perform the following sequence of tests.
Test the System
Turn the power off.
Be sure to replace the system power input fuse with the
same type.
Unplug the blower and all pumps.
Restore the power and verify system operation.
If the fuse blows, then re-check the internal system wires
and connector for burns, cracks or cuts in insulation.
If the fuse does not blow, turn the power off and plug in the
pump.
NOTE: Be sure to test each device individually.
Test the Pump
Restore the power and activate the pump.
If the fuse blows, there is a pump problem.
If the fuse does not blow, turn off the power.
Test the Blower
Plug in the blower.
Power up the system and activate the blower.
If the fuse blows, then there is a blower problem.
If the fuse does not blow, the combined pump and blower
amperage may be excessive. To verify this, first check
with your spa manufacturer for amperage draw limits on
each device.
Since the blower should now be running, you can check
the amperage draw with an ammeter by measuring around
the black blower wire and compare with manufacturer's
specifications.
Manufactured under one or more of these patents. U.S. Patents: 5332944, 5361215, 5550753, 5559720, 5,883,459, 6253227, 6282370, 6590188, 6976052, 6965815, 7030343, 7,417, 834 b2,
14
Canadian Patent: 2342614, Australian patent: 2373248 other patents both foreign and domestic applied for and pending. All material copyright of Balboa Water Group.
TEST THE AMPERAGE DRAW
Turn off the power, disconnect the
blower, make sure the pump is
plugged in, and restore power.
Start the pump and switch to
high speed (if available), this
should draw the most current.
Make sure all jets and valves
are open.
Check the amperage at the
red pump wire. Compare your
reading with manufacturer specifications. (If the other plug-
in devices exist, they should be tested in the same way.)
If the amperage draw for each device is within
manufacturer's specifications, the problem could be a
nuisance spike in the pump, or water in the blower.
NOTE: These slow-blow fuses are not always discolored when
blown. Always test continuity of a fuse with an ohmmeter.
NOTE: Miswiring of the spa is the most common reason for this
fuse to blow. However, a lightning strike in the area is a possible,
though less likely, cause of the failure.
2013-06-22