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User Manual 20
FAN AUTO
Status
Indicator
Status Indicators
Status indicators appear in the display to let you know if your system is heating, cooling or off.
HEAT ON Heating system is running.
COOL ON Cooling system is running.
AUX Auxiliary stage of heating is running
(multi-stage heat pump systems only).
EMER
Emergency heating system is running
(heat pump systems only).
ADJ Temperature adjustment limit has been reached.
Thermostat is connected to Wi-Fi network (flashes if
connection is lost).
Thermostat battery is low (see Thermostat Maintenance, page 26).
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