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What does an OLF fault code mean on the ATS22 soft starters?

OLF means motor overload fault

1- To reset the fault you can go into the Pro menu find ITH set this to OFF  power cycle then set it to ON. 
This will reset the OLF fault, Otherwise you have to wait for it to time out and reset on its own.

2-Check the motor for blockage, phase rotation.. etc.

3- Check the ACC and tHP settings in SET menu, if ACC= 10 seconds or more,  try adjusting  the tHP to class 20 or class 30.

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