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 tem-
perature 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
Changing: Scale, Clock Mode,
Differential, Filter Hours, Short Cycle,
or Offset section).
Move fan option switch to either gas
or electric, to match system (see
Switch Locations section).
Check F/C (Fahrenheit/Celsius) setting.
See Changing: Scale or Calibration
section.
Call a licensed service person to
replace/repair.
or
10
Action