Temperature display and setting
Appears when the setpoint is displayed
Temperature display
Appears when the thermostat
is configured for 5-minute
cycles. The thermostat must be
set to this configuration if it is
controlling a fan-forced heater.
Heating intensity indicator.
(No image appears when
heating is off.)
The thermostat normally displays the actual (ambient) temperature.
• To view the setpoint temperature, briefly press the Up or Down button. The setpoint will
be displayed for 5 seconds and the screen illuminated for 12 seconds.
• To change the setpoint temperature, press the Up or Down button until the desired
value is displayed.
2
RTH401
Up button
Down button