Status Indicators
Status indicators appear in the display to let you know if your system is heating, cooling or off.
HEAT ON
Indicates that your heating system is running.
COOL ON
Indicates that your cooling system is running.
AUX
Indicates that the auxiliary stage of heating is running
(multi-stage systems only).
EMER
Indicates that the emergency heating system is running
(Model 5320 - heat pump systems only).
CHECK
Indicates that there is a potential problem with your
system. Contact a local service technician.
SERVICE
Indicates a user selectable service reminder for changing a filter, UV air purifier bulb or humidifier
pad (See Service Monitors, page 10).
User Manual
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Status
Indicator