Marquis ULTIMATE HOT TUB EXPERIENCE! Owner's Manual page 53

marquis t rouble sH oot ing guide
GENERal MESSaGES
Most messages and alerts will appear at the bottom of the normally used
screens. Several alerts and messages may be displayed in a sequence.
Some messages can be reset from the panel. Messages that can be reset
will appear with a "right arrow" at the end of the message. This message
can be selected by navigating to it at pressing the Select button.
---ºF ---ºC
Water temperature is unknown.
After the pump has been running for 1 minute, the temperature will be dis-
played.
Possible freezing condition
A potential freeze condition has been detected, or the Aux Freeze Switch
has closed. All water devices are activated. In some cases, pumps may turn
on and off and the heater may operate during Freeze Protection. This is an
operational message, not an error indication.
the water is too hot - M029
The system has detected a spa water temp of 110ºF (43.3ºC) or more, and
the spa functions are disabled. System will auto reset when the spa water
temp is below 108ºF (42.2ºC). Check for extended pump operation or high
ambient temp.
HEatER-RElatED MESSaGES
the water flow is low - M016
There may not be enough water flow through the heater to carry the heat
away from the heating element. Heater start up will begin again after about 1
minute. See "Flow Related Checks" below.
the water flow has failed* - M017
There is not enough water flow through the heater to carry the heat away
form the heating element and the heater has been disabled. See "Flow Re-
lated Checks" below. After the problem has been resolved, you must press
any button to reset and begin heater start up.
the heater may be dry* - M028
Possible dry heater, or not enough water in the heater to start it. The spa
is shut down for 15 min. Press any button to reset the heater start up. See
"Flow Related Checks" below.
the heater is too hot* - M30
One of the water temp sensors has detected 118ºF (47.8ºC) in the heater
and the spa is shut down. You must clear the message when water is below
108ºF (42.2ºC). See "Flow Related Checks" below.
Flow-Related Checks
Check for low water level, suction flow restrictions, closed valves, trapped
air, too many closed jets and pump prime.
On some systems, even when spa is shut down by an error condition, some
equipment may occasionally turn on to continue monitoring temperature or
if freeze protection is needed.
*This message can be reset from the topside panel.
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