Met with Steve and Maryanne. Then we proceeded to shut off power to the unit and the water supply isolation valves. We replaced the system filter along we the Combi boiler igniter. We reconnected the wiring, restored power and opened up the water supply. We asked the homeowners to turn up the thermostat. We observed the boiler fire, run and reach temperature. All is good and operating as it should. Customers were very satisfied with the service.