4 panel displays sn1, 5 panel displays sn2, 8 panel displays oh – Jacuzzi J-280 User Manual
Page 36: 9 panel displays, 0 troubleshooting procedures, 2 pump does not operate but light does
page 32
13.4 Panel Displays SN1
Open sensor (heater is disabled) or shorted sensor (spa is
deactivated). The high-limit temperature sensor is not func-
tioning. Contact your authorized Jacuzzi dealer or qualified
service technician.
13.5 Panel Displays SN2
Open or shorted sensor (heater disabled). The temperature
sensor is not functioning. Contact your authorized Jacuzzi
dealer or qualified service technician.
13.6 Panel Flashes FL1 or FL2 (Spas without Circulation Pump
Option)
A flashing “FL1” display means the pressure switch is not
closed when the jets pump 1 is activated. Proper water
flow is inhibited or the pressure switch has malfunctioned.
A flashing “FL2” display means the pressure switch is
malfunctioning closed. In either case, the heater is
deactivated. To correct condition, perform to the following:
1. Verify water level is one inch below lowest pillow. Add water if nec-
essary.
2. Check for clogged or excessively dirty filter cartridge (sec. 11.1,
page 25).
3. Purge “air lock” from jets pump 1 by loosening the upper pump
head drain screw (Figure-A, page 11) for a few seconds to release
trapped air, then retighten drain screw. FINGER TIGHT ONLY!
4. If problem persists, contact your authorized Jacuzzi dealer.
13.7 Panel Flashes FL1 or FL2 (Spas with Circulation Pump
Option)
A flashing “FL1” display means the flow switch is malfunc-
tioning open, the filter cartridge is excessively dirty or an
“air lock” condition has occurred at the circulation pump
intake. A flashing “FL2” display means the flow switch is
malfunctioning closed. In either case, the spa heater will
deactivate and jets pump #1 may also deactivate. To cor-
rect condition perform the following:
1. Verify water level is 1” below lowest pillow. Add water if necessary.
2. Check for clogged or excessively dirty filter cartridge (sec. 11.1,
page 25).
3. Purge “air lock” from circulation pump intake by removing filter
cartridge. Hold your garden hose over the filter cartridge wall fitting
while using a rag as a seal around hose end. Ask a helper to turn