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Lennox Condenser Coil Assembly/Heat Exchanger
There is a problem with certain Lennox Coil Assemblies, also known as the Heat Exchanger, in the outside A/C unit. The cooling fins can deterioriate over time and literally fall apart. Some examples are shown in the images below. Lennox will replace the defective coil assembly at no cost to the homeowner. This is not widely known and there is no official recall by Lennox that we know of. All homeowners are strongly encouraged to get in touch with your Air Conditioner service company and have your unit checked to see if it needs to be replaced.  You will need the model number and serial number when you call.  The service company needs that information to find out if your unit is affected.  Click on images below for larger view.  Any unit with exposed coils, as seen in the pictures below, needs to be replaced.  Systems with metal louvers are okay and do not need to be replaced, I am told.

IF the coils on your unit are black, the coil has been replaced and nothing further needs to be done.

Lennox has a Customer Service number (1-800-953-6669) that you can call if you want to.  Explain that you have a unit with degraded coils and have the model and serial numbers ready for them.  The models that appear to be defective in our community probably have a model number that begins with 13HPD or 13HPX but other models may be affected.
This is only for Lennox A/C units.  If you have Carrier, Trane, York, Puron, etc. this does not affect you.  If you have seen a lot of Del-Air heating and air conditioning trucks in the subdivision lately, there is a reason for that.  They are well aware of the problem and are prepared to replace your condenser coils.  They have already replaced the units on 15-20 houses and they have the replacement coils in stock.  You can contact them at 407-333-2665 with the model and serial numbers.  One note of caution...their busy time of the year is rapidly approaching and they may not have time to get yours done when the weather turns hotter.  So do not delay!
coil assembly
Example of deterioration
coil assembly
Example of deterioration

real bad!

real bad!
   

black coils on replaced
units. These are good coils.

Model number and serial
number information to
look for.





 
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