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  • My Nieco unit will light but then shuts off.

    Posted by guest on April 29, 2015 at 12:00 am

    I checked the flame sensor, cleaned it with an emery cloth, and everything was ok…

    but my Nieco unit will still light and then shut off.

    ectofix replied 8 years, 11 months ago 1 Member · 1 Reply
  • 1 Reply
  • ectofix

    Member
    April 29, 2015 at 4:32 pm

    Along with a good wire connection to the flame sensor, make sure the flame sensor has a good, clean ground connection to the burner.  That ground is often a tab protruding from the from the flame sensor mount.  It must contact the burner when you reinstall it.

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