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    me50's Avatar
    me50 Posts: 1, Reputation: 1
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    #1

    Apr 12, 2015, 04:44 PM
    Honeywell T-Stat battery change
    My T-stat had lo on the screen so I changed the batteries. At the same time, I changed both filters. The fan is running (I did this as a test) and it is on cool. Registers 83 degrees when I set it to 60 degrees. Why is this? I had no problems before I changed the batteries.

    Thanks.
    Grady White's Avatar
    Grady White Posts: 1,417, Reputation: 59
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    #2

    Apr 14, 2015, 05:11 PM
    Is the outdoor unit of the A/C running? Most thermostats have a built in delay for the outdoor unit after a power loss (including battery change). That delay is normally 5 minutes & if the outdoor unit also has a delay that amount has to be added to the stat delay.
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