CONTROLS
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2. Diagnostic, Maintenance and Servicing
Error codes:
•
"1" = Prompting a bad RH sensor.
•
"2" = Condensate pump or external float switch is installed in the drain line and is detecting a closed switch.
•
"3" = The delta temperature between ambient and evaporator coil not wide enough to reflect a normal
operating condition. Unit will turn off and try to restart after an hour.
3. Evaporator Temperature Mode
To enter evaporator temperature mode, press and hold both arrow buttons for >5 seconds and the LED will
change to Blue.
The display will flash at twice the rate of "set point" mode and display the evaporator coil temperature.
Press any button to exit evaporator temperature mode.
4. Ambient Temperature Mode
To enter ambient temperature mode, press and hold the up arrow and power buttons for >5 seconds
and the LED will change to Purple.
The display will flash at twice the rate of "set point" mode and display the ambient temperature.
Press any button to exit ambient temperature mode.
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Santa Fe ULTRAMD33 Installation & Operation Instructions
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