White Rodgers 1F90W-51 User Manual
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thermostat and the thermostat is operating
on battery power only.
• AUDIO PROMPTING — Each time you
press a button, the thermostat will beep.
• BACKLIT DISPLAY — When you press
any button on the thermostat, the display is
lit for approximately eight seconds.
• SYSTEM INDICATOR LIGHT — The red
light on the upper right part of the thermostat
indicates system operation (see PARTS OF
THE THERMOSTAT).
• COMPRESSOR SHORT CYCLE PROTEC-
TION — To protect your compressor from
potential damage due to rapid cycling, this
thermostat has a built-in delay of 5 minutes
between cooling cycles. The following may
cause a time delay in COOL:
a) Return of power after a power outage.
b) Pressing
SYSTEM
HEAT-OFF-COOL
to change operating
modes.
c) Pressing
, creating a call for COOL
too soon after a previous call.
PROGRAMMING