Tech came to further diagnose short cycling, tech tested unit operation by jumping equipment out or using thermostat and tech could not find a mechanical issue with equipment. Tech jumped out pressure switches and checked continuity between pressure switch when system is at its highest pressure and pressure switch was still staying closed. System will go in and out of defrost with no challenges. Refrigerant pressures are well within specs as well as delta T. Based on customers explanation And time intervals tech believe system is going through a defrost. Since defrost board is based off a timer instead of coil sensors. Chances of system going into a defrost upon start up is likely. Customer also stated system was maintaining temperature throughout issue. System is working properly at this time. Told customer to call back if she has any other challenges