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    Bro-ken's Avatar
    Bro-ken Posts: 1, Reputation: 1
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    #1

    Oct 18, 2018, 07:32 AM
    Honeywell RTH230B thermostat- filter change
    Hi, trying to find out where the filter is.
    Trying to clear the filter light so I can get some heat

    Thanks!
    talaniman's Avatar
    talaniman Posts: 54,327, Reputation: 10855
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    #2

    Oct 18, 2018, 09:54 AM
    Follow your furnace air INTAKE vent, and some furnaces have the filter close to the unit wherever that may be whether attic, basement, or closet. Then reset thermostat after changing the filter. Might be worth a professional to check your system if you have gone a long time since doing any basic preventative maintenance, or filter changes until now.

    See owners manual or download one online. I change filters at least twice a year before heating and air conditioning seasons.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #3

    Oct 18, 2018, 02:56 PM
    The filter is in the air handler not the thermostat.
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