Variable speed fan responds to only a small portion of the 0 to 100% range

• Related Articles

• Variable AC fan has poor range

  If you find your variable AC fan has a poor range, follow the link below for a flow-chart to help solve the issue. https://www.phason.ca/img/kb/002/var-ac-fan-has-poor-range.html

• Variable speed 1 or variable speed 2 fan switches on, runs at full speed, and then turns off. Keeps cycling.

  Problem Variable speed 1 or variable speed 2 fan switches on, runs at full speed, and then turns off. Keeps cycling. Possible Cause The hysteresis is not high enough. The outside temperature is rising and falling quickly. This happens most often in ...

• Variable speed 1 or variable speed 2 fan switches on, runs at full speed, and then turns off. Keeps cycling.

  Problem Variable speed 1 or variable speed 2 fan switches on, runs at full speed, and then turns off. Keeps cycling. Possible Cause The hysteresis is not high enough. The outside temperature is rising and falling quickly. This happens most often in ...

• Variable speed 1 or variable speed 2 fan switches on, runs at full speed, and then turns off. Keeps cycling.

  Problem Variable speed 1 or variable speed 2 fan switches on, runs at full speed, and then turns off. Keeps cycling. Possible Cause The hysteresis is not high enough. The outside temperature is rising and falling quickly. This happens most often in ...

• Troubleshooting - Variable speed 1 or variable speed 2 fan switches on, runs at full speed, and then turns off. Keeps cycling.

  Problem Variable speed 1 or variable speed 2 fan switches on, runs at full speed, and then turns off. Keeps cycling. Possible Cause Hysteresis not high enough. Outside temperature rising and falling quickly. Happens most often in the spring and fall. ...