Cracked Heat Exchanger Oil Furnace

This trips a safety switch and shuts down the furnace.

Cracked heat exchanger oil furnace.

With a cracked heat exchanger the amount of oxygen inside the combustion chamber rises while the blower fan is running. A cracked heat exchanger allows air from the furnace blower to interfere with the flame causing it to flutter or even roll out. This is because air is entering the combustion chamber through the crack in the heat exchanger. A burner with a moving yellow.

Often when cracks are present in a heat exchanger soot from the combustion process will seep through and discolor the metal. Press this onto the furnace heat exchanger and allow it to dry. A crack in your heat exchanger is no trivial matter. It tests under actual operating conditions.

Signs your furnace has a cracked heat exchanger the flame s appearance changes. When the flame is blue it means your. A heat exchanger acts as a collection station for combustible gas and allows the gas to make the air reach a boiling hot temperature. If your heat exchanger has cracks these cracks cause your furnace to perform inefficiently.

Fire up a welder and use the liquid metal to form a glue like line around the edge of your sheet metal. Incomplete combustion usually causes an increase in soot. When carbon builds up within the interior of the heating system then soot accumulates. This raises the amount of oxygen in the exhaust gases.

If you see evidence of soot which is actually a black carbon buildup on the inside of the furnace it s a sign your furnace isn t burning cleanly. Weld the sheet metal some more as it dries. This happens when the. But the decision to repair or replace a heating unit can be difficult.

The result will be a buildup of soot around the crack site and or spots that are a darker color than the rest of the metal. If you have a steel exchanger then cut down a piece of sheet metal to cover the crack plus 2 inches all the way around. It s the most common cause of excess carbon monoxide in a home. Cracks and corrosion on other components.

The heat exchanger in your furnace heats air traveling from one end to the other. Beware of an unethical technician who finds a crack with a camera on a furnace that seems to be running just fine. Here are some signs that may indicate your issue is a cracked or malfunctioning heat exchanger. Signs and symptoms of a cracked gas furnace heat exchanger change in flame appearance.

When the external components show signs of either minor or significant wear. Depending on the age of your furnace a cracked heat exchanger probably means you need a new system.