Responded to service call for 9-year-old Daikin heat pump system (model FVXS15RVJU) with heating performance concerns. Diagnosed operating characteristics of indoor fan coil unit, determining system was functioning according to design specifications with normal defrost cycle operation. Explained to customer that initial low airflow is normal operation before transitioning to high speed mode, and that proper operation requires manual fan speed selection rather than auto mode for optimal heating performance.
Completed service call for follow-up estimate on potential water heater replacement and recirculation system installation. Inspected current 12-year-old water heater, which is functioning but approaching end of typical service life. Provided updated quotes for 75-gallon tank with mixing valve and recirculation pump options to address customer's long hot water delay issues (60ft distance between water heater and kitchen). Customer will review options and contact us when ready to proceed.
