Jacuzzi LED Series Troubleshooting

17
8.0 Troubleshooting without The Control Panel
• Diagnostic Tools for Sections 8.1A-8.1E: Clamp-on ammeter, voltmeter, and ohmmeter
• Suggested Spare Parts for Sections 8.1A-8.1E: Circuit board, control panel, temperature sensor, thermal
switch, ow switch, heater assembly.
8.1A No Heat or Not Enough Heat (All Models)
• Symptoms: Circulation pump is moving water, panel heat indicator is lit, water is not getting hot.
• Conguration: 2-pump system heaters will not operate with both jets pumps running, unless congured for
60A operation, or with either pump running if circuit board is congured for 40A operation. Refer to Sections
6.1-6.4, pages 12-13.
Turn up temperature setpoint
to initiate a heat call (verify that
a valid Primary Filtration Cycle,
PF1-PF8, is selected (see
page 8). Is voltage present
at the heater output? Test
points 12 and 13. See pages
43-46.
Is voltage present at heater input?
Test points 10 and 11. See pages
43-46.
Replace or reconnect wires
between heater input relay
and TB1 (main power
terminal block).
No
Yes
Replace circuit board.
Is voltage present at heater
element? Test points 25 and
26. See pages 43-46.
Is there current draw? Refer
to Section A2 (page 38)
for expected heater current
consumption values.
Check heater element with
clamp-on ammeter around one
of the heater element wires.
Is the heater’s current draw
within ±10% of the listed
value?
Locate thermal switch inside the
heater box. Set voltage meter
to 500-1000 VAC range. Test
thermal switch by connecting
voltage meter across the
terminals with a heat call present
(Fig. 3). If 120 VAC* or 240 VAC
exists, the switch is open. If
no voltage exists, the switch is
closed. Is the switch open?
*Convertible J-315/J-325 models
only.
Replace or reconnect wires
between heater output and
heater element.
Replace Thermal Switch and
retest spa.
Place thermometer against
heater housing and verify
temperature. Is temperature
above 130ºF?
Current draw is proof that
heater element is working.
Make sure customer knows
how to use control panel and
heater. Ask about any possible
error messages.
**Call Technical Support
Replace heater.
No
Fig. 3
Thermal Switch
Bad
Thermal Switch
Good
VAC
VAC
Optional Test Method: you can also
remove one wire from either side of switch
and test across its terminals for continuity.
Infinite Ω=bad switch; 0 Ω=good switch
No
No
No
No
Yes
Yes
Yes
Yes
Yes
DANGER: Electrical Shock Hazard Exists!
High Voltage Present on Circuit Board. Use
Extreme Caution while Servicing Circuit Board.
**WARNING: heater temperature may have ex-
ceeded 130°F (54°C). Inspect heater. Call technical
support if visible damage is apparent.

Jacuzzi LED Series Specifications

General

Brand	Jacuzzi
Model	LED Series
Category	Hot Tub
Language	English