Trane Furnace Cracked Heat Exchanger

One of the most common reasons a gas furnace can be taken out of service is when the repair technician finds to a cracked heat exchanger.

Trane furnace cracked heat exchanger. There could be a number of reasons why the fuel isn t being burned properly with one of them being that the heat exchanger has been cracked. Depending on the age of your furnace a cracked heat exchanger probably means you need a new system. A cracked heat exchanger allows air from the furnace blower to interfere with the flame causing it to flutter or even roll out. The furnace heat exchanger is the one of the main components inside the gas furnace and it s used to transfer the heat from the gas burner to the warm air that s blown into your home.

A crack in your heat exchanger is no trivial matter. This trips a safety switch and shuts down the furnace. But the decision to repair or replace a heating unit can be difficult. The furnace usually sends the fumes out a flue but a crack can allow some to seep out.

Combustion gases leaking from a cracked heat exchanger can cause frequent headaches as well as flu like symptoms. The reaction between the combustion gas and metal over time may create this weakening of metal. The cracked heat exchanger because the metal of the heat exchanger expands and then contracts as it heats and cools the stress may eventually cause a crack to form on the exchanger. Cracked heat exchanger oxygen reading rises while furnace is heating up at time 1 09 burners are on and blower is running.

Corrosion because of reaction between the combustion gas and the metal often because of improper venting can also weaken the metal to the point where cracks form. Combustion pollutants such as carbon monoxide nitrogen dioxide and sulfur dioxide can cause eye and nose irritation disorientation sleepiness and nausea. Anti diy hvac 20 978 views. The your heat exchanger is cracked so your furnace must be replaced scam duration.

This is why it s something to watch out for in an old furnace. It s the most common cause of excess carbon monoxide in a home. Beware of an unethical technician who finds a crack with a camera on a furnace that seems to be running just fine. Components that have cracks and corrosion have a look at the external components of the system.

The most likely cause for a crack in the heat exchanger is corrosion.