B No Heat Or Not Enough Heat (All Models) - Jacuzzi LED Series Manual

8.1B No Heat or Not Enough Heat (All Models)

• Symptoms: low speed pump or circulation pump (heating pump) not turning, panel heat
indicator not lit, panel is flashing FL2.
Standard Troubleshooting Approach
This applies to 2011-2013 J300 Models not 2014+
Turn power off. Disconnect
flow or pressure switch wire
from board (Fig. 5). Turn
power on. Does the FL2 er-
ror message go away?
Yes
1. All Models:
Remove wires at board.
2. Test flow or pressure
switch with ohmmeter for
continuity across switch
wires (Fig. 6-7). Does
meter read continuity (0
ohms)?
Yes
Remove flow or pressure
switch and inspect for debris
interference. Remove debris
if present. Test switch for
continuity (0Ω) when closed
and for infinite Ω when open
(Fig. 6-7). Does switch oper-
ate correctly?
Yes
J-LX/J300/J200 Models with
circulation pump:
Install switch making sure
flow arrow points in direction
of flow and switch doesn't
bottom out in fitting (Fig. 8).
Retest system.
No
Is wire shorted?
Yes
Replace wire.
No
Make sure wire
is not shorted
when installed on
switch. For models
where the wire is
removable.
No
Replace flow or
pressure switch.
Yes
J200 Models
(without the
circulation pump):
Replace pressure
switch. Retest
system.
No
Replace circuit
board.
DCV ACV
OFF
1000 750
200 DCA
200
20 200µ
2000µ
2000m
200m 20m
200m
2000k
10A
200k
20k
2000
+
Pump off 200
Ω
Infinite Ω
DCV ACV
OFF
750
1000
200 DCA
200
20 200µ
2000m 2000µ
200m 20m
200m
2000k
10A
200k
20k
2000
200 +
Ω
Open
Infinite Ω
Arrows
not
aligned
Incorrect
Orientation
Fig. 5
Flow
Cable
Fig. 6
DCV ACV
OFF
750
1000
200 DCA
200
20 200µ
2000m 2000µ
200m 20m
200m
2000k
10A
200k
20k
2000
Pump on 200 +
Ω
Continuity 0 Ω
Fig. 7
DCV ACV
OFF
750
1000
200 DCA
200
20 200µ
2000m 2000µ
200m 20m
200m
2000k
10A
200k
20k
2000
200 +
Ω
Closed
Continuity 0 Ω
DCV ACV
OFF
750
1000
200 DCA
200
20 200µ
2000m 2000µ
200m 20m
200m
2000k
10A
200k
20k
2000
200 +
Ω
Fig. 8
correct
Arrows
aligned
incorrect
Pipe
Correct
Orientation End View
Correct
Orientation
23