Quinnch@gmail.com Found the thermostat calling for heat but no operation. Tech went into test mode and heat pump operated and gas heat as well. Tech checked the set up for proper dual fuel set up. Indoor coil is extremely clogged with dog hair. Tech strongly recommended ESA (maintenance). Customer declined ESA for now and uv bulb replacement. System is liable to not be efficient and operate properly due to having restrictive airflow, causing abnormal pressures and potential temperature limit switches to be triggered. Tech left the system operating in heat mode.