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Freeze protection with Honywell pro stats

Unless specified by the manufacturer. This is usually a default setting which is provided by a microprocessor as long as the power isn't out for extended periods of time.


  • Boilerpro_3
    Boilerpro_3 Member Posts: 1,231

    Do the Pro 3000 stats have freeze protection in case of a dead battery? I can't seem to find any info on this in the installation manual.

  • carol_3
    carol_3 Member Posts: 397

    No, Honeywell stats don't have freeze protection. Sometimes what folks are thinking of when they want freeze protection is a way to keep the heat at a minimum no matter what. But if you loose power or have a failure in the system, the stat couldn't help with that anyway. Freeze protection in the stat would be useful if the stat failed, which is highly unlikely.

  • Boilerpro_3
    Boilerpro_3 Member Posts: 1,231
    It sounds like NO

    What I was thinking of is something like the Erie stats ... they have a freeze protection circuit that will turn on the heat at about 45F even if the battery is dead. These stats work great, when they work, but lately I have been seeing multiple stats that do not work right out of the box. Swapping in a new stat unto the orignal base seem to fix the problem every time. I am beginning to suspect that they are being shipped with bad batteries....Next thing to check.

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