AT31™ Questions

Typically there are two sets of windings on a single phase motor Start/Run.  Any capacitor must be disconnected.  First, measure the start winding.  With the run winding engaged, take your next set of readings.  These can be trended over time or compared to a known good motor of the exact same kind.

No. The AT31™ should never be used while plugged into the charger.

Failure of the battery to hold a charge cold indicate needed battery replacement or a problem with the charger power supply.  Contact support@alltestpro.com for guidance.

No.  The AT31™ uses a 9 pin db connector and only leads provided by ATP should be used.