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Phason Support Forum » Frequently asked questions (FAQs) » All controls » Heater cycles on and off

Heater cycles on and off

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1 Heater cycles on and off on 2013-01-07, 12:56 pm

Possible causes
  1. The heater set point is too close to the variable speed fan set point.
  2. Hysteresis is too low.
  3. The stage is set up as a duty cycle.
  4. Temperature probe is too close to the heater or the fans.

  1. Widen the gap between the heater and fan set points.
  2. Increase hysteresis setting.
  3. Set the stage to HEAT.
  4. Position the temperature probe away from direct airflow paths of heater and fans.

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