If the heat exchanger is cracked, byproducts of the combustion process that takes place within the component can spill out. An incorrect ratio produces not only excess soot, but may also release. The soot insulates the heat exchanger causing less heat to pass through the heat exchanger and more to go up the chimney. Because it allows the exhaust fumes inside the exchanger to leak into the air. A gas furnaces heat exchanger is another potential source of leaked carbon monoxide. The cause can be anything from tilted burners to cracks in the heat exchange itself. Were you recently told that your furnace heat exchanger is cracked and needs to be replaced. I have a trane xe80 system and it appears there is an air. The correct airtofuel ratio is critical for clean burning. This video is about the your heat exchanger is cracked so your furnace must be replaced. All too often, furnaces are grossly oversized or used incorrectly which causes the heat exchanger to fail prematurely. The heat exchanger is covered under warranty, but we would have to pay labor. The cause of cracked heat exchangers avoid this common scam.
By reuben saltzman in furnace certifications, hvac on october 6, 2009. The trane xe 90 furnace has an afue rating of more than 90 percent, meaning that 90 percent of the fuel you use is directly turned into heat. The heat exchanger on a furnace is the section that keeps the combustion chamber and the breathing air separate 3. Older furnaces can develop major issues, such as a cracked heat exchanger. This video is part of the heating and cooling series of training videos made to accompany my websites. A furnace heat exchanger begins at the burner assembly of the furnace, and goes to the spot where the chimney vent connects with the furnace. Cpsc, trane company announce recall of voyager heating and.
A cracked heat exchanger allows air from the furnace blower to interfere with the flame causing it to flutter or even roll out. The your heat exchanger is cracked so your furnace must be. A heat exchanger is made of thin metal, and as it heats up from the combustion of the furnace, it transfers the heat to the air being distributed through the house by the blower 3. Not only is furnace performance an issue, but heat exchanger malfunctions can pose serious health and fire risks. Cracks in the heat exchanger are a serious problem and one that should not be ignored both for the safety of your home and for the longevity of your furnace. I have a trane xe80 system and it appears there is an air flow problem in or above the heat exchanger. The heat of the combustion gas raises the temperature of the metal, and as the air from the blower passes around it, heat transfers to it. Even though your furnace may look and seem fine, dangerous gases could leak into your home and seriously affect, even kill, your family members. A damaged or cracked heat exchanger is the cause of the leading cause of carbon monoxide poisoning in north america. If an electrical component then fails and short circuits, the unit poses a shock hazard. Replacing cracked heat exchanger in trane rooftop unit. Many hvac contractors find cracked heat exchangers using visual analysis and use the results to recommend furnace replacement.
Dangerous cracked heat exchangers in furnaces fossil fuels and cracked heat exchangers anyone who has an oil or gas boiler, oil or gas furnace, gas logs whether they be propane or natural gas, a gas stove or oven, or any woodburning appliance or fireplace, or appliance or heating device that burns fossil fuels you need a carbon monoxide. The heat exchanger contains the gas combustion chamber. The thermostat is set at 67 degrees and shows it is calling for heat but no heat. Basically, the heat exchanger is where the furnace heats the air. Inefficient combustion causes soot to build up on the heat exchanger. The heat exchanger is aptly named it collects air through the ventilation system and exchanges it to heat with the help of the furnace burners. We have hounded trane for months and the do not admit there is a problem with their product. As air is circulated through the hvac system, it passes over the heat exchanger and absorbs thermal energy. The extra air will cause the oxygen reading to change notably. Trane xr90 heat exchanger warranty repairs hvactalk. Beware of an unethical technician who finds a crack with a camera on a furnace that seems to be running just fine. We want to caution you about the most common cause for a gas furnace to become unsafe.
A damaged heat exchanger in a gas furnace is potentially dangerous to a homes occupants and should not be ignored. The service tech told us this was the second gms9070 hed found with a cracked heat exchanger in the past week. However, if a crack develops in your units heat exchanger, then you might be looking at either an expensive repair or replacement. A warning about cracked heat exchangers in gas furnace. The furnace heat exchanger is the one of the main components inside the gas furnace and its used to transfer the heat from the gas burner to the warm air thats blown into your home. If the heat exchanger is cracked, the oxygen reading will change a lot when the blower turns on. Screw goodman, i am having this piece of junk removed from my home and having a trane put in. Trane xe90 replace heat exhcange or the whole furnace. When a heat exchanger becomes damaged and the combustion fumes and gases. Trane furnace warranty, gas furnaces, limited lifetime. For assistance in locating a local independent dealer, contact trane at 800 94044 between 7.
Broken and leaking heat exchangers are responsible for about 1,500 deaths per year in the united states, and many more people are poisoned by exposure to toxic gasses that go unfiltered by defective heat exchangers. Replaced trane gas furnace warranty heat exchanger duration. Furnace heatexchanger crack signs your furnace has one. In the video above the furnace techs says the oxygen reading could rise as high as. The american gas association has even put this in writing they say any visible crack or hole is reason. This one is about a crack i found in a heat exchanger that caused no symptoms. A furnace with undersized ductwork will lack proper airflow and suffer a similar fate as that of a clogged filter. Even though your furnace may look and seem fine, dangerous gases could. This video is about the your heat exchanger is cracked so your furnace must be replaced scam. Theres a lot of good info on there, but some of it is misleading and there are a lot of straw man arguments made. A cracked heat exchanger in a gas furnace is a serious safety issue.
The problem i am having is the burner and fan will not start. Trane will completely replace the heat exchanger end plate and internal flue gas tube assemblies in all recalled units at no cost to the consumer. This passageway, combined with a metal chamber, allows for the safe distribution of heated air throughout your home. Weve met with lots of homeowners looking for a second opinion about a supposedly cracked heat. When air flows over the heat exchanger, hot gases are pulled through the channel by an induction vent fan. Read our blog to learn what to do if this happens to you. It is important that the heat exchanger is taken care of as hazards can build from a faulty exchanger. The ground wire in the furnaces junction box can become loose. Press this onto the furnace heat exchanger, and allow it to dry.
Trane xe90 replace heat exhcange or the whole furnace our service company was here today and told us there is a hole in our heat exchange. If the furnace has a soot buildup inside of it, then chances are that the heat exchanger is damaged. The heat exchanger is a key part of the furnace and is responsible for the actual heating of air. This is because air is leaking through the crack in the heat exchanger into the combustion chamber. Once the thermal expansion has damaged the metal, it cannot be reweldedetc. This trips a safety switch and shuts down the furnace. We did replace old bad heat exchanger with a new one in trane rooftop unit. Our 365day return policy guarantees youll always get the right part. Typical residential warm air heating furnace heat exchanger life factors that impact.
Trane recalls furnaces due to shock hazard recall alert name of product. Located in the center of the furnace, it is where fire, gas and heat connect. Pour a little bit of the chemical on the hole, and leave it to dry until it seals around the exchanger. Ambient carbon monoxide one of the first things you should do is measure ambient co in the conditioned space while the heat is running with either a combustion analysis tool or a personal co detection device.
More commonly, the cause of a cracked heat exchanger is misapplication or poor maintenance of the furnace. Does the actual stainless heat exchanger have to be cracked for warranty coverage, or is this collector box considered a part of the. Ct monday through friday, or visit the firms web site at. The heat exchanger is the most important part of your heating and cooling system, allowing heat to transfer between mediums to keep your home at the optimal temperature. If someone informs you that your heat exchanger is cracked, call the. A look at a heat exchanger crack that cant be found youtube.
If a heat exchanger develops a leak through rust perforation or by cracking due to metal. Exc01872 trane heat exchanger rating select rating 1 star worst 2 stars 3 stars average 4 stars 5 stars best name. Should i replace my heat exchanger or buy a new furnace. 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. Cracked or corroded gas furnace heat exchangers leak co and other poisonous gasses into the home living area though air ducts. Can you repair a cracked heat exchanger on a gas furnace.
Heat exchanger cracks are a serious furnace repair issue. This is a sign that the burner is not burning properly and needs to be fixed. This gas furnace has a patented heat exchanger that is designed with a serpentineshaped channel. Signs and symptoms of a cracked gas furnace heat exchanger. Carrier common furnace problems premature heat exchanger. Carbon monoxide is a byproduct of incomplete combustion of fuels such as petroleum and wood. Als sells and installs new hvac systems from american standard made by the same company as trane, ameristar made by same company as. What causes excess soot buildup in a propane furnace.
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