Message
Meaning
Inadequate water detected
in heater. (Displays on third
occurrence of “dr”
message.) Spa is shut down.
When your spa is first
actuated, it will go into
Priming mode.
Temperature unknown.
Temperature not current in
Economy or Sleep mode.
Standby Mode has been
activated by pressing a
button combination on the
user panel.
Action Required
Follow action required for “dr” message. Spa will not
automatically reset; you may press any button to reset.
See the M-7 Installation Instruction Manual for complete
instructions on Power-up and Pump Priming. The Priming
mode will last for up to 4 minutes and then the spa will
begin to heat and maintain the water temperature in the
Standard mode.
After the pump has been running for 2 minutes,
the temperature will be displayed.
In Economy or Sleep mode, the pump may be off for
hours outside a filter. If you wish to see the current spa
temperature, either switch to Standard mode or turn Jets 1
on for at least two minutes.
Press any button to leave Standby mode and return to
normal operation.
Message
Meaning
Every 7 days
Every 7 days
Every 30 days
Every 30 days
Every 90 days
Every 180 days
Every 180 days
Every 365 days
Action Required
Test and adjust ph chemical levels per manufacturer’s
instructions.
Test and adjust sanitizer chemical levels per manufacturer’s
instructions.
Remove, clean, and reinstall filter per manufacturer’s
instructions.
Test and reset GFCI per manufacturer’s instructions.
Drain and refill spa per manufacturer’s instructions.
Clean and condition cover per manufacturer’s instructions.
Clean and condition wood per manufacturer’s instructions.
Install new filter.
master spas
Diagnostic Messages
42
DO NOT DIVE.
Periodic Reminder Messages
Press the “Mode” button to reset a displayed reminder (if configured)
Warning! Shock Hazard! No User Serviceable Parts.
Do not attempt service of this control system. Contact your
dealer or service organization for assistance. Follow all owner’s manual power connection instructions. Installation must be performed
by a licensed electrician and all grounding connections must be properly installed.