T H U N D E R B A Y S E
Preparation and filling the spa
Preparation and Filling
Fill the spa to its correct operating level. Be sure to open all valves and jets in the plumbing system before filling to allow as much
air as possible to escape from the plumbing and the control system during the filling process.
After turning the power on at the main power panel, the top-side panel display will go through specific sequences. These
sequences are normal and display a variety of information regarding the configuration of the hot tub control.
Mode – Ready and Rest
In order for the spa to heat, a pump needs to circulate water through the heater. The pump that performs this function is known
as the “heater pump.” The heater pump is a 2-Speed Pump.
The heater pump is a 2-Speed Pump 1, READY Mode will circulate water every 1/2 hour, using Pump 1 Low, in order to maintain
a constant water temperature, heat as needed, and refresh the temperature display. This is known as “polling.”
REST Mode will only allow heating during programmed filter cycles. Since polling does not occur, the temperature display may not
show a current temperature until the heater pump has been running for a minute or two.
Circulation Mode
If the spa is configured for 24HR circulation, the heater pump generally runs continuously. Since the heater pump is always
running, the spa will maintain set temperature and heat as needed in Ready Mode, without polling.
In Rest Mode, the spa will only heat to set temperature during programmed filter times, even though the water is being filtered
constantly when in Circulation Mode.
Flip (Invert Display)
Note:
Some panels may have a dedicated FLIP button, which
allows the user to fl flip the display with a single button-press.
The FLIP menu/functionality depends on Manufacturer
configuration and may not be available. (Menu Style 1)
General Messages
Water Temperature is Unknown
After the pump has been running for 1 minute, the temperature
will be displayed.
Safety Trip - Pump Suction Blockage* – M033
The Safety Trip error message indicates that the vacuum
switch has closed. This occurs when there has been a suction
problem or a possible entrapment situation avoided. (Note: not
all spas have this feature.)
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