Advanced Programming Options
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Advanced programming display codes chart
You can customize several features of your thermostat. This chart
shows which features you can change and the codes associated with
them. The codes will be shown on the display when you follow the
instructions.
* Not available when batteries are installed.
Feature Configuration Code Change Indication
Fahrenheit to
Celsius
U1 F or C
backlighting U2* On or Of
keypad lockout U3 padlock
programmable or
nonprogrammable
U4 P or nP
number of
program periods
U5 4 or 2