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.
Possible Solution
Adjust the hysteresis
setting or overlap the Variable speed 1 or variable speed 2 fan settings.
Related Articles
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 fan runs at maximum
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Variable fan runs at maximum
Problem Variable fan runs at maximum Possible Cause Possible Solution Incorrect wiring Correct the wiring. The fuse is open or blown. Check why the fuse was blown and repair any problems. Replace the fuse. The variable stage is configured as OFF ...