Jacuzzi LCD Series - Manual (Page 42)

If the spa water is more than 20 °F (-7 °C) cooler
than the temperature setpoint, the low speed
pump #1 and heater will automatically activate to
provide freeze protection. The spa will stay in this
mode until the water temperature reaches 15 °F
(-9 °C) below the set temperature. No corrective
action is necessary.
FLOW SWITCH (Heater is deactivated. Pump may
also be deactivated). Proper flow of water is inhibit-
ed or a flow switch has malfunctioned. Check for
proper water level and for a clogged circulation
pump filter cartridge (Sec. 12.1, Page 31). Contact
your dealer or service center.
*NOTE: THIS MESSAGE CAN ALSO APPEAR IF THE PUMP HAS NOT
REGAINED PRIME AFTER THE SPA HAS BEEN DRAINED AND
REFILLED. IF YOU SUSPECT THAT THIS IS THE CASE, SEE THE
INSTRUCTIONS ON PAGE 40 UNDER “PUMP DOES NOT OPERATE...”
Panel sensors have been pressed too many times in a
short period of time. Because this could cause exces-
sive wear on equipment components, panel sensors
are temporarily deactivated. Panel sensors will
automatically re-activate if no sensor is pressed for 30
seconds.
Circuit board temperature has exceeded acceptable
limit. This message will disappear when the circuit
board temperature drops below acceptable limit. If
condition persists, provide shade for equipment side
of spa.
FREEZE PROTECTION
A potential freeze condition has been detected. No
action is required. Pump(s) operate until the spa is out
of danger. Note: This error commonly occurs when
the spa is first filled because tap water is often very
cold.
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