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Bryant plus 80 heat exchager is cracked, i'm looking for a replacement heat exchanger

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Hate to tell you but heat exchangers are hard to match up. Unless it is relatively new then in most cases they have a warranty of 10 years. So you will have to replace furnace. You might be able to find a used furnace or go to web site and enter model number of your Bryant to get replacement.

Posted on Oct 24, 2010


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Furnace Bryant plus 80 keeps failing intermittently to restart. Light indicator flashing code 3 which states pressure switch stuck open. Where is that so I can replace it.

You could also clean the flame sensor .Look for a black sort of box or it may be round should be near the combustion fan.

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Bryant gas furnace does the blower motor have to work for the heat exchanger to light up both are not working

It depends....on if you are talking about a small blower in the front of the furnace or the indoor fan motor. If your furnace is an 80% effficiency rating or above it will have a 'combustion air' fan....that will be a small on in front of the furnace in the vestibule under the front cover. If you have that motor and that is the one you are asking about...then YES it has to be running prior to the furnace igniting the gas.

If you are talking about the indoor fan motor for circulating air into your ducts, then NO it does not have to be running in order for the furnace to ignite. But it WILL have to run to remove the heat from the heat exchanger after it ignites or it willl overheat and shut off on high limit.

Jan 02, 2015 | Heating & Cooling

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Feb 28, 2018 | Heating & Cooling

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I have a Carrier model # 58MXA080-F-15112. I think my furnace is 30 plus years old. it isn't heating properly. The blower turns on and sometimes the flames come on, but sometimes they don't. As...

A 13 code means the furnace cycled on limit more than three times consecutively and is in a lockout for 3 hours. A 14 is ignition lockout. An ignitor does not intermittently quit working. I'm the service mgr at our shop, and I know that particular furnace model has a service bulletin out on bad secondary heat exchangers. If your lucky the filter is dirty, or the furnace condensate trap or drain is clogged. Most likely the secondary heat exchanger is plugged up and isn't allowing the pressure switch to make. Or the furnace is overheating due to it not being able to properly vent hot gas. Which would explain the high limit lockouts. Call an authorized carrier dealer so you can take advantage of the free heat exchangers and the $300 labor credit. You can also call an authorized Bryant dealer to perform the work for you. Only an authorized dealer can rectify this problem because the Bryant corp requires testing and paperwork in order to get your free parts and labor credit.
Good luck.

Dec 23, 2012 | Heating & Cooling

1 Answer

I am getting a bit of smoke through the heat excahnge tubes any suggestions?

I'm going to have to assume that your talking about your vehicle. If this is the case, it sounds like your heat exchager has a pin hole leak in it. Does the smoke smell sweet? If it does, you're smelling the antifreeze. You can add the aluminum or bronze powder leak sealer to the radiator as a temporary fix, but the heat exchanger should be replaced.

Jan 29, 2011 | Heating & Cooling

1 Answer

I have a 45,000 btu garage heater made by heat star. some heating contactors say that the heat exchangers are prone to cracks. is this true? i work for the nat gas utility as a service tech, and right now...

Hi, all heaters are prone to cracks, but this unit is only 2 years old. You should be able to look at the heat exchanger above the burners and see any cracks or rusted out areas. Take a screw driver and push on it to see how strong the metal is. Normally a unit will develop cracks at about 20 years plus. If your tester is reading no carbon monoxside, you have nothing to worry about. If you are concerned, you can mount you a c/o detector near it for the future, but this is not true about the Heat Star units. Take a strong light and look inside and you can see if it is cracked or swollen, rusted out, or the metal is weak. I don't believe you have anything to worry about!! Please keep me posted on this and don't forget to rate me, I no you will be kind. Keep me informed on what you find if anything. I know you are fine.
A/C, Heating, & Refrigeration Contractor

Aug 06, 2010 | Star Enerco Heat HSU45 Garage Heater 45000...

2 Answers

Bryant-Carrier Furnace Fan Stays On

I suspect a bad fan relay or bad fan control. Maybe the longer the control or relay is in the on position the more chance of it sticking on.

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2 Answers

I have a Coleman/Evcon Presidential ser# 074878. The plumber says the Heat exchanger is cracked. Is this something I can fix myself or is it less expenxive to buy a new furnace?

The heat exchanger is a bear to change. depending on the age of the unit it might be more practical to replace the unit. However unless you trust this service tech I'd get a second opinion, because it is rare that a heat exchanger will crack, plus by law he or she should have shut the furnace down do to carbonminoxde. Especially rare in Coleman Evcon series units.

Oct 21, 2008 | Heating & Cooling

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