Arrived, met Albert and discussed the issue with his system. I looked over the furnace with a Navien water heater. Both units were not firing. I traced the gas lines and found the main gas valve turned off. Albert was with me during the troubleshooting process. I opened the gas valve and observed the furnace with the water heater light, run, cycle and reach temperature. Both units are operating appropriately. Albert is not interested in a SPP. He likes to service the units himself. Albert was very happy and satisfied with the service.