Arrived to do a performance maintenance. Opened system up and checked for cleanliness. Found that the fan for heating and cooling is collecting dust. Tested performance of the capacitor for the air handlers fan. Buttoned system up and set it to heat the home. Verified temperature split in heat pump mode and with heat strips. System is heating well and switching between heat strips and heat pump on its own. Measured the systems static pressure. System is functioning properly at this time.