Jacuzzi LED Series Troubleshooting

20
8.1D No Heat or Not Enough Heat (All Models)
• Symptoms: Circulation pump (heating pump) is turning, panel heat indicator not lit,
panel is ashing FL1.
Standard Troubleshooting Approach
Is the circulation pump
(Heat Pump) moving
water?
Verify hot tub is in a
primary ltration mode
(page 8) then perform
step below.
Remove switch wires
from board. Increase set
temperature to initiate a
heat call, then jumper ow
switch wires together
(Fig. 7). Does heat
indicator appear and FL1
error message disappear?
Test ow switch with
ohmmeter for continuity
(0Ω) across switch
terminals (Fig. 9) Does
meter read continuity (0Ω)
with pump on?
Clean connectors between
ow cable and switch.
1. Remove lter and
allow air to bleed
out of cartridge.
2. Check for proper
water level.
3. Check for clogged/
excessively dirty
lter.
4. Check for blockage
at lter wall tting.
5. Check for sticking
weir.
6. Is pump moving
water?
Remove ow switch
connector from circuit
board test point 22 (Fig.
8). Place jumper across
exposed connector pins*.
Does heat indicator
appear and FL1 error
message disappear?
Repair or replace ow
sensor cable.
Remove ow switch
and inspect for debris
blockage. Remove
blockage or replace
switch.
Re-install ow switch.
Install ow switch
with arrow pointing in
direction of ow. Make
sure magnet arm doesn’t
bottom out in tting (Fig.
10).
See Section 8.12 (pg. 31)
Replace circuit board.
No
Yes
*Lightly scrape
contact pins at
point 22 with a
razor blade or
sandpaper to re-
move conformal
coating or oxida-
tion form contact
surface.
No
No
No
Yes
Yes
Yes
Yes
No
Fig. 7
Fig. 8
Fig. 9
Temporarily Jumper Flow Switch Cable
Wires Together as Shown.
Fig. 10
FLOW
Incorrect
Orientation
Correct
Orientation
FLOW
Pipe
End View
correct
incorrect
Arrows
not
aligned
Arrows
aligned
Temporarily
Short Pins
with Jumper
#6560-864
Flow
Cable
22
Infinite Ω Continuity 0 Ω
Pump off
Pump on
Open
Closed
Jumper
DCV ACV
DCA
OFF
1000
200
20
2000m
200m
2000k
200k
20k
2000
200
10A
200m
20m
2000µ
200µ
Ω
+
750
200
DCV ACV
DCA
OFF
1000
200
20
2000m
200m
2000k
200k
20k
2000
200
10A
200m
20m
2000µ
200µ
Ω
+
750
200
Correct
Orientation
DCV ACV
DCA
OFF
1000
200
20
2000m
200m
2000k
200k
20k
2000
200
10A
200m
20m
2000µ
200µ
Ω
+
750
200
DANGER: Electrical Shock Hazard Exists!
High Voltage Present on Circuit Board. Use
Extreme Caution while Servicing Circuit Board.

Jacuzzi LED Series Specifications

General

Brand	Jacuzzi
Model	LED Series
Category	Hot Tub
Language	English