Arrived onsite for maintenance for one gas fired boiler. Turn on the thermostats up to heat and confirm operation of the boiler and each zone valve. Only found one zone valve but it was operational. Turned the boiler off and removed and cleaned all burners and wiped cleaner the burner compartment. Performed a visual inspection of all electrical and inspected all external water components such as the exp tank, fill valve, backflow preventer and the circulator pump. System working as it should. Performed dryer vent cleaning. Replaced 2 air scrubber bulbs by Argus. Please note 75 gallon water heater is due for replacement. It is manufactured in 2010. At 14 years old it is near failure which could be leaking and flooding the basement.
