Controller Inoperable, Display Blank - Jandy AquaLink RS6 Troubleshooting Manual

7.2

Controller Inoperable, Display Blank

Check voltage
on red terminal
bar between the
outside two ter-
minals (red and
green wires).
Is voltage 8 to
10VDC?
Yes
At Power
Center,
No LEDs
move over-
are on at the
ride switch
All Button
from Auto
Control-
to Ser-
ler or the
vice. Do
OneTouch
override
display is
switches
blank.
operate?
No
Check voltage
across second-
ary of trans-
former (two
yellow wires
of orange 3-pin
connector).
Is voltage 24
VAC?
Go to the Control-
ler and measure
the voltage be-
Yes
tween the same
two terminals. Is
the voltage 8 to 10
VDC?
No
The power supply is damaged and
the PCB at the Power Center will
need to be replaced.
Remove, align and carefully reinstall
the fi rmware chip. Test system, if still
not operable, replace Power Center
PCB and fi rmware chip.
Turn off power
and remove
3.15 amp fuse.
Check for con-
tinuity. Is there
continuity?
Unplug all
JVAs and re-
place fuse, and
Yes
turn on power.
Does fuse fail
again?
No
Check voltage to primary of
transformer. Is primary 110
VAC?
Controller PCB
Yes
will need to be
replaced.
Wires are broken
No
or in the wrong
place.
Remove
Yes
both relay
driver chips
and replace
the fuse.
No
Yes
Check JVAs for
spliced wires, water
damage or incorrect
No
voltage. Plug JVAs
in one at a time, if
fuse blows again
replace that JVA.
Replace transformer.
Yes
Check circuit
breaker and system
No
power wires.
Page 33
If fuse blows
again: PCB is
damaged. If
fuse doesn't
blow, driver
chips are bad.
Replace appro-
priate compo-
nent.