Danfoss RET2000B-RF + RX1-S User Manual page 7

Flame: shows when heating output is on
(in heating mode only)
Standby: shows when unit is manual set to standby
Snowfl ake: shows when cooling output is on
(in cooling mode only)
Battery: fl ashes when battery is low (battery units only)
Padlock: indicates keyboard lock has been set at
installation
Antenna: indicates a paired link is active between the
thermostat and receiver
External Sensor Alarm:
E5 = Sensor short circuit
E6 = Sensor open circuit / missing
Danfoss Heating
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