Arrived onsite for maintenance on steam boiler and inspection of new heat pump system. Requested the customer turn on the thermostats up to heat and confirm operation of the boiler. 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 automatic water feeder, fill valve, backflow preventer and pressuretrol. Bled the steam boiler of water. Cleaned site glass and confirmed water level on site glass is within specification. Confirmed site glass valves are operational and opened. Removed and Cleaned pigtail. Went radiator to radiator to confirm heating. Found master bedroom radiator was air locked due to failed air valve replaced valve and confirmed operation. Confirmed everything is operating and heating properly at this time.
