Balboa Water Group GL/GS 230V - Manual (Page 40)

40
Changing a System Circuit Board
Important!
Be sure to turn the power off before replacing any
component, especially a circuit board.
Important!
DO NOT REMOVE AND REPLACE THE CIRCUIT BOARD
UNLESS THE FAULT HAS POSITIVELY BEEN DETER-
MINED TO BE THE CIRCUIT BOARD.
HOW TO REMOVE A SYSTEM CIRCUIT BOARD
NOTE: Before you begin, labeling all wires to be removed
may help speed up reinstallation. The wiring diagram should
always be used to ensure proper wire placement.
Shut OFF line power to the spa at the main circuit UÊ
breaker panel. Do not attempt to service a spa without
shutting off the power. Serious injury or damage may
result.
Disconnect all wires and slip-on connectors as
UÊ
necessary to remove the board.
Remove all the screws which mount the board to the
UÊ
system enclosure.
Remove the board from the plastic stand-offs by gently
UÊ
squeezing the locking flange on each stand-off with a
pair of pliers. The board should now be free and can be
removed from the system box.
HOW TO REPLACE A SYSTEM CIRCUIT BOARD
Check all jumpers and dip switch positions on the new UÊ
board. Make sure they are in the same position as the
old board.
Make sure the new board snaps in place on the plastic
UÊ
stand-offs. Use care to be sure the connectors on the
right side of the board clear the enclosure openings as
the board is installed.
Caution: Do Not Overtighten this screw.
Install all screws which mount the board to the system
UÊ
enclosure.
Reconnect all wires and slip-on connectors.
UÊ
Restore power to the spa at the main breaker. UÊ
Test to make sure all functions work correctly. UÊ
Important
DO NOT REMOVE AND REPLACE THE CIRCUIT BOARD
UNLESS YOU HAVE TESTED ALL OTHER COMPONENTS
AND PROVEN THAT THE CIRCUIT BOARD IS ACTUALLY
CAUSING THE PROBLEM.
GS500Z Board