Commercial Boiler System Maintenance Checklist
Keeping your commercial boiler system equipment running efficiently, safely, and reliably is directly related to the preventative maintenance steps you take. Conducting regular boiler checkups will help reduce downtime, minimize operating costs, and bolster the overall life of your equipment. Simply put, it makes dollars and sense to have your boiler equipment inspected regularly — outside of any mandated annual inspections.
The experts at Applied Technologies of NY (ATI of NY) have created a commercial boiler system maintenance checklist that you can use as a general guide for preventative maintenance. For your convenience, we’ve broken this checklist down into daily, weekly, monthly, semi-annual, and annual boiler maintenance steps you can take to get the most from your equipment.
Daily Checklist
- Check sight-glass water level / system pressure (steam vs hydronic).
- Observe flame quality & burner sound.
- Blow-down gauge glass & LWCO
- Record feed-water chemistry and make-up volume (O&M Manual B pre-start item 6).
- Walk boiler room for leaks, vibration, or alarms.
Weekly Checklist
- Trip low-water cut-off by draining water column—burner must shut down
- Exercise manual shut-off valves in the fuel train, then leak-test.
- Inspect burner linkage pins & air-damper travel.
- Prime steam traps or open hydronic auto-vents as applicable.
Monthly Checklist
- Clean combustion-air inlet filter.
- Inspect refractory; vacuum burner fan screens.
- Lubricate fan/blower and pump bearings.
- Review chemical logs; adjust sulfite/nitrite as needed.
Quarterly Checklist
- Perform full combustion analysis; adjust O₂/CO₂ and draft.
- Brush fireside tubes; descale waterside if indicated.
- Bubble-test safety shut-off valves.
- Check condensate temperature (< 200 °F) or expansion-tank pressure.
Semi-Annual Checklist
- Remove and inspect ignition electrodes & UV scanner; replace if pitted.
- Meg-ohm test burner-motor windings; tighten control-panel terminals.
- Verify all pressure/temperature gauges against a calibrated standard.
Annual Checklist/Out-of-Service
- Drain, lock-out, open manways; inspect tubes, drums, refractory.
- Hydro-pressure-test boiler and external piping.
- Remove, test, or replace safety valves; file certificates.
- Burner teardown: replace nozzle/electrodes, clean blower wheel.
- Re-calibrate transmitters, flame-safeguard, and limit switches.
- Review the year’s logs to refine the PM program.
Optimize Your Operations with a Commercial Boiler System Maintenance Checklist
Regular maintenance is the key to maximizing efficiency, safety, and longevity in your boiler operations. By following a structured maintenance checklist, you can proactively reduce downtime, lower operational costs, and ensure regulatory compliance. Whether you’re developing an internal maintenance routine or seeking professional support, having the right checklist in place makes all the difference.
Need expert guidance or hands-on service? Contact the team at ATI Technical Services today. We’re here to help you implement and maintain a tailored boiler maintenance program that keeps your equipment performing at its best.