Diagnostic Messages
Message
Meaning
The spa is operating in Standard Mode.
The spa is operating in Economy Mode.
The spa is operating Standard-in-Economy
Mode.
Sleep Mode has been activated by pressing
a button combination on the user panel.
The spa is operating in Test Mode.
The Spa Monitor is unable to operate
normally in Test Mode.
Action Required
Temperature display is current after pump has been
running for at least 2 minutes.
“Ecn” will appear solid on the display when the
temperature is not current. “Ecn” will alternate with the
temperature when the temperature is current.
Operates the same as Standard mode, then reverts to
Economy mode after 1 hour. Press MODE to switch
directly to Economy mode.
“SLP” will appear solid on the display when the
temperature is not current. “SLP” will alternate with the
temperature when the temperature is current.
Contact your distributor or authorized dealer to have the
spa switched back to User Mode.
Consult your main panel documentation for the meaning and required action that corresponds to any additional
three-letter diagnostic or reminder messages that may appear on the SpaMonitor display. If you use an ML900 main
panel, consult the ML900 Cross-Reference Table on the next page to correlate the three-character message on the
SpaMonitor with the 12-character message on the ML900.
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