30
The LEDs on the thermostat may have several different meanings, depending on system, setup and operation.
MENU
72
77 H
11:15 AM
Sys Off
Run
Filter
LED 1
MODE
FAN
RUN
74 C
LED 2
LED 3
LED 4
LED
On/Off
Text
Description
LED 1 (Green)
System Operation display
Off
Sys Off
HVAC system is OFF
Off
WAIT
Minimum Off Time (MOT) delay is active
See
InstallerÎSettings on page 25 for more information.
On
Cool On
Cooling system is running
On
Cool On
Cooling Min Run Time (MRT)
See
InstallerÎSettings on page 25 for more information.
On
Heat On
Heating system is running
On
Heat On
Heating Minimum Run Time (MRT)
See
InstallerÎSettings on page 25 for more information.
LED 2 (Green)
System Stage display
Off
None
1st stage heating or cooling.
On
2nd Stg
Stage 2 heating or cooling is active
On
Aux Heat
Aux Heat – heating is active
Flashing
E Heat
Emergency Heat – heating is active
LED 3 (Green)
Run/Hold/ESM display
Off
Run
Schedule mode is active
On
Hold
Temperature hold is active
On
ESM
(Energy Savings Mode) temperature preset is active
LED 4 (Red)
System Alert display
Off
None
No alerts or messages
On
Filter
Filter run timer reached
See
FilterÎService on page 20 for more information.
On
Maint
Maintenance run timer reached
See
MaintenanceÎService on page 21 for more information.
LED Reference