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13.2 Overheat Condition
WARNING! DO NOT ENTER SPA WATER! Water is too hot.
Overheat protection. Heater is deactivated. Spa water tempera-
ture is above acceptable limits. When the actual water tempera-
ture is approximately 2 °F (1 °C) above the set temperature, the
circulation pump will stop operating to reduce (frictional) heating. To
correct condition, remove spa cover to speed cooling (CAUTION! Never
leave spa uncovered when children are present!) If condition persists,
contact your authorized Sundance dealer.
There are a number of unique functions designed into your spa to protect it
from damage and/or aid in troubleshooting. Refer to sections 13.3-13.9
below for a listing of all possible error messages and their meanings.
13.3 Panel displays SN1
Open sensor (heater is disabled) or shorted sensor (spa is
deactivated). The high-limit temperature sensor is not functioning.
Your authorized dealer must repair this.
13.4 Panel displays SN2
Open or shorted sensor (heater disabled). The temperature
sensor is not functioning. Your authorized dealer must repair this.
13.5 Panel displays FL1 or FL2
A flashing "FL1" display means the flow switch is malfunction-
ing open, the circulation pump's 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.
• This error will cause the heater to deactivate. The main
pump #1 may also deactivate.
• This problem is caused by an interruption in water flow from an
excessively dirty filter cartridge, an "air lock" condition at the pump
intake, or by a malfunctioning flow switch.
To Correct Condition:
1. Check for proper water level. Water should be 1" below lowest pillow.
2. Check for clogged/excessively dirty filter cartridge. See section 1 1.1
(Page 20-21).
Page 28
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