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Hello. click here for the manual
If the dealer or yourself programmed it to your needs at the time of installation, that programming over-wrote the factory program... the solution for you if want changes is to simply follow the directions for programming each feature that you want to change, and enter that change.
Let me know how that goes, I will hold the question for you.
If its 'days' you are trying to eliminate, set the cooling to 80F and the heating to 50F for that day.... or look for a system OFF button for that day or time frame