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Setting the Fan to ON, AUTO, or CIRC
The fan has 3 settings: On, Auto, and Circ. Press the button to switch
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
14
System fan does not operate
properly.
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
TToo MMaakkee CChhaannggeess ttoo tthhee SSeettttiinnggss
section.
Thermostat does not display
proper room temperature.
Thermostat does not turn on system.
Check wiring (see
WWiirriinngg DDiiaaggrraammss
section in the Installation Manual).
Increase temperature differential
(see
TToo MMaakkee CChhaannggeess ttoo tthhee SSeettttiinnggss
section).
If problems with thermostat cannot be resolved, contact:
www.invensyscontrols.com
or
Technical Support: (800) 445-8299
System turns on too often.
Problem Action
Display shows HI or LO and room
temperature is normal.
Call a licensed service person to
replace/repair.