Fall Boiler Maintenance Checklist for Central New York Homes

Scheduling boiler maintenance before the heating season has three big advantages. First, if a part needs replacing, there is time to order it without leaving your family in a cold house. Second, technicians have more open appointments in September than in January. Third, a clean and properly adjusted boiler burns less fuel all winter.

It also matters for safety. A boiler that has been idle for months can have blocked vents, a stuck relief valve or a failing low water cutoff. Those are exactly the problems you want found before the burner starts cycling every few minutes.

These checks need no tools and take about twenty minutes. Do them with the boiler cool.

• Look at the pressure gauge. Most residential hot water systems sit around 12 to 15 psi when cold. A reading near zero or climbing toward 30 psi needs attention.
• Check for water on the floor. Look under the boiler, around the circulator pumps and at the end of the relief valve discharge pipe.
• Look for rust streaks or white crust on fittings and valves. That usually means a slow leak.
• Clear the area around the boiler. Boxes, paint cans and laundry piled near a burner are a fire risk and block the air the boiler needs for combustion.
• Walk outside and look at the vent or chimney. Check for bird nests, leaves, wasp nests and snow drift areas around sidewall vents.
• Test your carbon monoxide detectors and replace batteries. Every home with a fuel burning appliance needs working CO alarms on each level.
• Bleed air from radiators or baseboard if some rooms heated poorly last winter.

A proper annual service goes well beyond a visual check. On our boiler maintenance visits we typically work through the following:

Combustion and burner

• Clean the burner and inspect the flame for proper color and shape.
• Inspect the heat exchanger for soot, scale or corrosion.
• Check and clean the ignition components and flame sensor.
• Test combustion and draft so the boiler burns efficiently and vents safely.

Safety controls

• Test the low water cutoff so the burner shuts down if the water level drops.
• Confirm the pressure relief valve opens and reseats correctly.
• Check the high limit control and operating temperatures.

Water side of the system

• Check the expansion tank air charge and replace a waterlogged tank.
• Inspect circulator pumps for noise, heat and leaks at the flanges.
• Confirm the fill valve and backflow preventer are working.
• Look over zone valves and the thermostat wiring.

When we finish, you get a plain explanation of what we found and anything we recommend fixing now versus keeping an eye on.

Water expands as it heats. The expansion tank gives that extra volume somewhere to go. When the air charge inside the tank is lost, system pressure spikes every time the boiler fires, and the relief valve starts to drip or discharge.

A quick sign of trouble is a tank that feels hot and heavy all the way to the top, or a relief valve with a wet discharge pipe. Replacing a failed expansion tank is usually a straightforward repair, and it protects the boiler, the relief valve and every fitting in the system from repeated pressure spikes.

Some symptoms should not wait for a scheduled tune-up. Call a professional promptly if you notice any of these:

• A carbon monoxide alarm sounding, headaches or nausea that improve when you leave the house. Get everyone outside first, then call 911 or your fuel supplier.
• Soot around the burner door or a smell of exhaust in the basement.
• The relief valve discharging water.
• Banging, kettling or loud gurgling when the boiler runs.
• Pressure that keeps dropping and needs to be refilled.
• Radiators or baseboard that stay cold while the boiler is running.

For more on carbon monoxide safety, the U.S. Environmental Protection Agency explains how carbon monoxide affects indoor air and how to reduce the risk.

Your boiler and your plumbing are connected in more ways than one. If the heat fails on a January night, pipes in exterior walls and crawl spaces can freeze within hours. A fall tune-up is a good time to also think about the rest of the house.

Our guide on how to prevent frozen pipes covers the plumbing side, and our summerize and winterize service handles outdoor faucets, seasonal homes and exposed lines.

If you want these checks done every year without having to remember, ask about our service contracts. Call (607) 373-6421 to book a fall visit anywhere in Sherburne, Hamilton, Earlville and nearby towns.