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P a g e
flow. To prevent the heater from being turned on when there is no water running through,
the heater is turned off and one of these messages will be displayed indicating which pump is
supposed to be running.
A pressure switch error may also be indicated if the switch is out of adjustment or there is an
air lock in the pump. Adjusting the pressure switch is best left to a trained technician. An air
lock may happen whenever the spa is drained and refilled with water, or if the water level in
the spa is so low as to permit air to be sucked in by the pump. To bleed an air lock; switch off
power, loosen one of the pump fittings a quarter of a turn. You will hear the sound of
escaping air, and then water will start dripping. Re-tighten the fitting.
ToE
Time-Out Error. It is not likely that you will ever see this error. It indicates that the
system’s heartbeat is out of control, all devices will be shut down and the spa is unusable. This
message will rarely ever occur, if it does, please contact Applied Computer Controls.
