Calspas SWIM - Page 51

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Priming Mode [Initial Start Up]
When your spa is rst powered on the unit will enter a mode called priming mode, this also occurs when-
ever the power to the unit is cut o from a GFCI trip or a power surge. This modes purpose it to ensure the
primary pump is clear of any air pockets or obstructions, and allows your temperature sensors to calibrate
and read the water temperature to begin the heating process or to disengage the heater if the spa is already
within its desired range.
When Priming Mode starts, the primary pump will turn on in low speed, then switch to high speed. This is
done to purge any air pockets, that could have been trapped inside of the pump. This is considered normal
operation. Priming mode will run for about 4-5 minutes, the spa will enter regular heating and ltering once
Priming Mode ends. You can manually exit priming mode by pressing the “Back” icon on the priming mode
screen.
Note: if after 2 minutes you see no water movement or hear the pump activating but no visible or notable
water movement, cut the power to the spa from the GFCI and read the pump bleeding procedure in the be-
ginning of this owners manual. A large air pocket within the pump could be causing issues with water circu-
lation. Following the pump bleeding procedure, activate the spa power again. If there is no water movement
within the spa, call your dealer for service as there could be an issue with your primary pump or control box.
When priming mode occurs, this allows time for the water temperature sensors inside of the control box
to gather data and display the correct temperature. During priming mode or when you skip/exit priming
mode, the sensors may show no values on its temperature reading. This is normal as it is collecting data
through a period of time, to give an accurate reading. It usually takes about 1 minute of data collection for
the display to properly display the temperature.
Temperature Sensors
Freeze Protection
To prevent water freezing inside of the spa water lines and pumps, the sensors will detect drops in water
temperature inside of the spa. The pump(s) will purge and run on max speed to circulate water inside of the
spa to prevent the creation of ice. During cold/freezing weather it is recommended to keep the spa around
80F, lled up, and operating during the colder months. The insulation inside of the spa and the spa cover,
will help retain heat inside of the spa. Although you can follow the winterization procedure inside of this
manual, this does not guarantee against ice damage inside of the spa.
Pumps will run continuously or intermittently depending on the conditions and ambient temperature.
Ozonators
If your spa is equipped with an ozone generator, the ozone generator will operate during ltration cycles.
Ozone generators help breakdown organic materials suspended inside of spa water, reducing odors and
assists your sanitizers eectiveness.