Panel Displays Sn1; Panel Displays Sn2; Panel Flashes Fl1 Or Fl2; Pump Option) - Sundance Spas Hawthorne Owenrs Manual

13.4 Panel displays SN1

Open sensor (heater is disabled) or shorted sensor (spa is
deactivated). The high-limit temperature sensor is not
functioning. Your authorized Sundance dealer must repair this.

13.5 Panel displays SN2

Open or shorted sensor (heater disabled). The temperature
sensor is not functioning. Your authorized Sundance dealer
must repair this.
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 has
manfunctioning 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 cartridges (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 Sundance 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 circulation pump filter cartridge 1 is exces-
sively 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 correct 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 cartridges (sec. 11.1,
page 25).
3. Purge "air lock" from circulation pump intake by removing fllter
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