User's Manual
Page 71
J-400 Series
MESSAGE MEANING
Overheat protection: (Heater is deactivated, lter/
circulation pump is activated). Water temperature is
above acceptable limits. DO NOT ENTER THE WATER!
Remove spa cover to speed cooling. See “Water Is Too
Hot” on page 75. If condition persists, contact your
authorized dealer or authorized service center.
Water is below set-temp: If the spa water is more than
20 °F/6 °C cooler than the temperature set point, jets
pump #1 and the heater will automatically activate to
provide freeze protection. The spa will stay in this mode
until the water temperature reaches 15 degrees below
the set temperature. No corrective action is necessary.
Communication error: Communication between the
control panel and circuit board is faulty. If condition
persists, contact your authorized dealer or service
organization.
Pump does not operate: (Heater is deactivated. The
lter/circulation may also be deactivated). Proper ow of
water is inhibited or a ow switch has malfunctioned.
Check for proper water level and for clogged lter (page
64). If no sound is detected or if a “buzzing” sound is
detected, turn off power to the hot tub. Pump may not be
properly primed. If condition persists, contact your
authorized dealer or service organization.
Freeze protection: A potential freeze condition has been
detected. No action is required. Jets pump(s) operate
until the spa is out of danger. It is possible to manually
turn off pump 1 and pump 2, but if after 2 hours ICE is
still detected, pumps will automatically turn back on.
Note: This error commonly occurs when the spa is rst lled because tap
water is often very cold.
Emergency shutdown: (spa is deactivated)
A problem has been detected which could cause
damage to the spa or its components. Contact your
authorized dealer or service organization.
Open sensor: The temperature sensor is not functional.
Heater is disabled. This must be repaired only by a
qualied authorized service organization or service
technician.
OVERHEAT
COOL
COM
UNDER
CURRENT,
CIRC PUMP
OR JET
PUMP
ICE
SHUTDOWN
SENSOR
OpEN, TEMp
SENSOR