Can I disable a programmed schedule on my thermostat?

In this model screen must be lit for any button to be effective

This feature allows the thermostat to be placed in either Programmable or Manual operating mode. 

In programmable mode, the thermostat controls the room temperature automatically according to your pre-set program that follows your daily routine. In manual mode, the thermostat operates manually just like a mechanical or non-programmable model.  This method of operation is very basic and only shows the room temperature and set temperature; there are no temperature programs, days of the week, or clock times.

To change the operating mode: Move the System Mode switch into the OFF position, and hold down the SET button (make sure screen is illuminated) for approximately 5 seconds until the screen changes. The menu will always start with item #01. Press next to access item #2.

ITEM #02 (PROGRAMMING STYLE):

[1] (default) 5/2-Day Programming. This style uses a weekday program routine or Monday, Tuesday, Wednesday, Thursday, Friday, and a separate           weekend program routine for Saturday and Sunday.

[2] 7-Day Programming. This style uses a separate program routine for each of the 7 days in the week.

[3] Manual Non-Programmable. In this setting, there are no program routines for the thermostat to follow and the temperature control will be set only        by the UP and DOWN buttons on the front panel.

Use up/down button to select option 3. Exit program by moving slide switch or wait for it to time out.