C Hot Tub Light Will Not Come On (J-Lx/2011-2013 J300 Models) - Jacuzzi LED Series Manual

8.6C Hot Tub Light Will Not Come On (J-LX/2011-2013 J300 Models)

Diagnostic Tools: Voltmeter
Suggested Spare Parts: Circuit board, DCU, Lights
Standard Troubleshooting Approach
(Light has a two hour time out)
No
Do any of the
lights work?
Yes
Is connection be-
No
tween DCU and
light ok?
Yes
If one light
works and the
No
other does not,
try switching their
connections on
the DCU unit.
Does the light
work?
Yes
Replace DCU if
light won't turn on
or functions incor-
rectly. See notes
below*.
*Note: Before replacing DCU, perform the tasks described below in order to prevent shorting out the new DCU.
Step 1: Unplug all lights except footwell light.
Step 2: Verify footwell light works an goes through all color functions correctly.
Step 3: Plug in one light next to footwell light connection. Verify that all color functions work correctly and light does not
flicker or have missing color LED's. Unplug light and plug in another light in the same place and perform the same
test as with the previous light. Continue to follow this procedure until all lights have been tested.
Step 4: Now replace DCU and any lights that were determined to perform incorrectly.
No
Plug in spare con-
trol panel. Does
the light work now?
Yes
Replace control
panel.
Correct connec-
tion.
Replace light.
Plug known work-
ing light into each
DCU port to verify
DCU ports are
unaffected.
No
Is there correct
voltage at the
transformer yel-
low wires? Refer
Section A24 page
58 for voltage
readings.
Yes
Is connection
between the
No
transformer and
DCU ok?
Yes
Replace DCU
Replace trans-
former
Correct connec-
tion
31