New 1 system CCM- Checked heating operations of Zoned 2020 Rheem heat pump and air handler. Customer just replaced the 20x20x1 filter, Checked capacitor outputs and amp drawls, Checked refrigerant levels and auxiliary heat, Triggered safety switches and defrost mode, Checked delta T, and cleared drain line. Did find a tripped 30amp breaker for the Rheem heat pump, I did inspect all components and all are in good working order. Made customer aware maybe a surge came through area or breaker is weak. Will call electrician if problem returns. Pics uploaded