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TO LOCK THE KEYPAD: Start with the System Mode switch in either the HEAT
or COOL positions, and the Set Slide switch in the RUN position. Press and
hold the NEXT button for 5 seconds, and the words “LOCK CODE” then “SET
CODE” will appear at the top of the screen. Select a 4-digit code that you
would like to use for locking the thermostat. Press the UP/DOWN buttons to
change each flashing digit, using the NEXT button to cycle through which
digit is flashing. Press and hold the NEXT button for at least 5 seconds.
The thermostat will return to the Normal Run screen, with a padlock shown
to confirm that the thermostat is now locked.
TO UNLOCK THE KEYPAD: Press and hold the NEXT button for 5 seconds,
and the words “ENTER CODE” will appear at the top of the screen. Enter the
proper unlock code that was used for initially locking the thermostat. Press
the UP/DOWN buttons to change each flashing digit, using the NEXT button
to cycle through which digit is flashing. Press and hold the NEXT button for
at least 5 seconds. The thermostat will return to the Normal Run screen
without the padlock, and the thermostat is now unlocked.
IF YOU FORGET YOUR KEYPAD LOCK CODE: The following steps can regain
access to the thermostat. Place the Set Slide switch in the RUN position.
On the back of the thermostat’s circuit board, press and hold the “HW RST”
(Hardware Reset) button for 2 seconds and release. The thermostat will
perform a reset and should now be unlocked. If the thermostat is still locked
with the padlock present, perform the “To Unlock The Keypad” shown above
using “0000” as the code.
AIR FILTER MONITOR: In most systems that use a blower fan and air ducts,
there is an air filter that is either replaceable or requires cleaning. The filter
is usually located in the air handler, where the blower fan is. This
thermostat feature assists you with keeping track of proper maintenance
and/or periodic replacement intervals for your system’s filter.
The Air Filter Monitor counts the duration of filter usage that has occurred,
since the last time the Filter Monitor has been reset. This feature is for
information purposes only, and does not affect the operation of your heating
or cooling equipment, or the thermostat. When the filter usage duration has
expired, the words “CHANGE FILTER” will appear at the top of the display
screen, alternating with the current DAY and PERIOD.
TO SET THE AIR FILTER DURATION: Move the Set Slide switch to the
“FILT/ENRGY” position. The words “FILTER LEFT” will be shown at the top
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