Error Conditions/Error Messages; Summer Logic (Spas With Circulation Pump Option); Panel Displays Sn1; Panel Displays Sn2 - Sundance Spas Burlington Owner's Manual

13.0 Error Conditions/Error Messages

Your spa has a self-diagnostic control system. The system will automati-
cally display the following if a problem is detected.
13.1 Summer Logic (Spas With Circulation Pump
Option)
When the actual spa water temperature reaches up to 2
°F (1 °C) above the set temperature, the spa goes into
"summer logic." The 24 hour circulation pump will turn off
automatically to avoid adding additional heat to the water,
eventually creating an overheat condition. This setting is not user-pro-
grammable.
Note: The summer logic does not take effect until the spa water tempera-
ture reaches 95°F (35°C). This condition is more likely in excessively hot
weather. Remember, the spa's ability to cool is directly affected by the
ambient temperature. An excessively hot ambient temperature may pre-
vent the spa from cooling down because it's fully insulated construction is
designed to retain heat and to minimize operating costs.

13.2 Panel displays SN1

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

13.3 Panel displays SN2

Open or shorted sensor (heater disabled). The temperature
sensor is not functioning. Your authorized Sundance dealer
must repair this.
13.4 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 waterflow is
inhibited or the pressure switch has malfunctioned. A flashing
"FL2" display means the pressure switch is 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 neces-
sary.
2. Check for clogged or excessively dirty filter cartridges (Section 11.1,
page 30).
3. Purge "air lock" from jets pump 1 by loosening the upper pump head
drain screw (Figure A, page 14) for a few seconds to release trapped
air, then retighten drain screw. FINGER TIGHT ONLY!
4. If problem persists, contact your authorized Sundance dealer.
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