Hot Tub Light Will Not Come On - Jacuzzi J-315 Manual

.6 Hot Tub Light Will Not Come On

Diagnostic Tools: Voltmeter.
Suggested Spare Parts (Page 59): Control panel, circuit board, light bulb, light harness.
Standard Troubleshooting Approach
Press Light Button on
control panel.
Do you hear a relay
click on the circuit
board?
Yes
Is there 12 VAC at test
points 12 & 13?
Yes
Is the connection
between circuit board
and light, (DCU) con-
trol box OK?
Yes
Change Light (DCU)
Control box. Does
light work now?
Yes
DCU was defective.
Test all light functions
before leaving job site.
North American 60Hz Installations:
As of January 1, 14, the National Electrical Code (NEC) requires a Ground Fault Circuit Interrupter
(GFCI) on all hot tub installations in the US. A GFCI must be wired correctly or it will trip. Make sure the
electrician has wired the GFCI according to the diagrams on page 52.
No
Plug in spare control
panel then press Light
Button.
Do you hear a relay
click on the circuit
board?
Yes
Replace control panel.
No
Replace circuit board.
No
Correct connection.
No
Replace light and
retest.
No
Replace circuit board.
3
Circuit Board Illustrations
A. 2006+ LED Models (Page 50-51)