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

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

• Symptoms: Circulation pump (heating pump) not turning, panel heat indicator not lit,
panel is flashing FL2.
Standard Troubleshooting Approach
Turn power off. Disconnect
flow switch wire from board
(Fig. 4). Turn power on.
Does the FL2 error message
go away?
Yes
1. Remove wires at board.
2. Test flow switch with
ohmmeter for continuity
across switch wires (Fig.
5). Does meter read
continuity (0 ohms)?
Yes
Remove flow switch and in-
spect for debris interference.
Remove debris if present.
Test switch for continuity
(0Ω) when closed and for
infinite Ω when open (Fig. 5).
Does switch operate cor-
rectly?
Yes
Install switch making sure
flow arrow points in direction
of flow and switch doesn't
bottom out in fitting (Fig. 7).
Retest system.
18
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 switch.
No
Replace circuit
board.
DCV
1000
200
20
2000m
200m
2000k
200k
20k
2000
200
Ω
Open
Infinite Ω
Arrows
not
aligned
Incorrect
Orientation
Fig. 4
Flow
Cable
Fig. 5
DCV ACV
OFF
ACV 1000 750
OFF 200 DCA
750 200
200 DCA
20 200µ
2000m 2000µ
200µ
2000µ 200m 20m
20m 200m
200m 2000k
10A
200k
10A 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. 6
correct
Arrows
aligned
incorrect
Correct Pipe
End View
Orientation
Correct
Orientation