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AutomaticShut-Down
The thermostat will not display the room temperature if the temperature
goes higher than 99 °F (37 °C) or lower than 32 °F (0 °C).
The display will show HI or LO. The thermostat continues to control
heating and cooling and will resume the display of real time information
when the room temperature is back inside the display's range.
SettingtheFanToON,AUTOorCIRC
The fan has 3 settings: On, Auto, or Circ. Press the
among the three.
ON:
The fan is on constantly. The room temperture, set points, and
status of the heating and cooling equipment has no effect on the
fan.
AUTO: When there is a call for heating or cooling the fan will turn on.
CIRC: The fan operates in a cycle of on for 10 minutes and off for 20
minutes. When there is a call for heating or cooling the cycle stops
and the fan responds to the call. The fan circulation cycle resumes
when the call for heating or cooling is satisfied.
Troubleshooting
Thermostat does not turn on system.
System turns on too often.
System fan does not operate properly.
Thermostat does not display proper
room temperature.
Display shows HI or LO and room
temperature is normal.
If problems with thermostat cannot be resolved, call:
Problem
www.invensyscontrols.com
Technical Support: (800) 445-8299
Check wiring.
(See Wiring Diagrams section.)
Increase temperature differential.
(See To Make Changes to the Settings
section.)
Move fan option switch to either gas
or electric, to match system.
(See Setting the Fan to ON, AUTO, or
CIRC section.)
Check F/C (Fahrenheit/Celsius) setting.
(See To Make Changes to the Settings
section.)
Call a licensed service person to
replace/repair.
or
13
button to switch
Action
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