Taco ZA024Q4A2 Zone Sentry Actuator Popping After Closing

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    • September 27, 2024 at 8:55 am #3309
      Ben Cheek
      Keymaster

      The Taco ZA024Q4A2 Zone Sentry Actuator in the Twin Birch Motels on Zone 1 (unit 2) pops loudly for about a minute after the zone quits calling for heat and the actuator closes. The actuator visibly torques as if the internal motor is pulling against gearing then popping loose.

      • This topic was modified 1 month, 1 week ago by Ben Cheek.
    • September 27, 2024 at 9:21 am #3310
      Ben Cheek
      Keymaster

      Most similar issues online seem to indicate actuator replacement is the way to go. Since the zone works for now and I only have one actuator in stock and another zone not working that needs that actuator, I’ll leave it and order the replacement.

      See: https://www.reddit.com/r/hvacadvice/comments/18rikgs/taco_zone_sentry_valve_clickingknocking_when/

    • September 27, 2024 at 11:49 am #3315
      Ben Cheek
      Keymaster

      Actually, I did have a replacement available so I did replace. The manual knob on the front does not seem to be turning with the motor, out operation was confirmed.

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