Ducane MPGA 05083

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Old 01-16-21, 08:31 AM
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Ducane MPGA 05083

Hello all,
I just had a technician replace the gas valve on my Ducane furnace and he told me that one of the two burners has a small crack that will worsen over time and eventually leak carbon monoxide. Can the burner in the unit be replaced?
 
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Old 01-16-21, 08:41 AM
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What’s the model number?
If the heat exchanger is cracked, the furnace must be shut down immediately until it’s repaired.
A new heat exchanger can be installed, or the furnace replaced.
 
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Old 01-18-21, 07:18 AM
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Hello,

The model number listed on the unit is MPGA 05083.
 
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Old 01-18-21, 10:14 AM
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You need to ask if it is the burner or heat exchanger which is cracked. Replacing a burner is inexpensive; heat exchanger, much more so.
 
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Old 01-18-21, 11:19 AM
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Looks like a problem with that series furnace in 2000-2001.

Burner's aren't expensive but aren't available very long after the furnace is out of production.
Looks like two possibilities for that furnace......
71L03 burner
46K18 burner
 
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Old 01-25-21, 10:08 AM
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I was told by the technician its the heat exchanger.
 
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Old 01-25-21, 10:24 AM
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In that case, either the heat exchanger or furnace needs to be replaced. If the heat exchanger is still under warranty, it would likely be cheaper to replace it than the entire furnace. Only the part would be warranted, not the labor.
 
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Old 01-25-21, 07:15 PM
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I don't think its under warranty. It was installed in 1998. Where can I buy the part? Thanks for your help Grady.
 
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Old 01-25-21, 07:26 PM
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If the heat exchanger is indeed cracked on a 23 year old furnace, your better off replacing the furnace. Replacing the heat exchanger is an extensive process.
 
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Old 01-26-21, 08:17 AM
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Bigfoot:
Roughneck is absolutely correct. Having to buy the heat exchanger, if you could get one, would be nearly as expensive as replacing the entire furnace. Not to mention labor. Replacing a heat exchanger is not a job for the inexperienced.
 
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Old 02-01-21, 11:36 PM
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I found the part online for 550. A new unit would cost about 4K, not counting the outside unit.?
 
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Old 02-02-21, 04:58 AM
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Labor to install the new heat exchanger will be high. At least a days labor for install.
Not worth it on an old furnace.
 
 

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