Trane XL80 evaporator coil

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  #1  
Old 06-12-12, 11:06 AM
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Trane XL80 evaporator coil

Hi, I have a TRANE XL80 that froze up yesterday all the way outside to the AC fan. I need help knowing how to clean the evaporator coil, which I suspect has never been cleaned. Thanks in advance.
 
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  #2  
Old 06-12-12, 03:00 PM
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What makes you think evaporator coils need to be cleaned? They don't need regular maintenance or cleaning. What you should do is replace the filter first
 
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Old 06-12-12, 03:35 PM
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and make sure the indoor blower is running.
 
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Old 07-04-13, 11:09 AM
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didn't answer the question

If a filter was all that was needed, I'm sure he wouldn't have posted.

I have a partner that is not to sharp sometimes, thought leaving the filter out would help the air flow. So I too am curious how to get to the coils. At the very least, if it cannot be performed by myself, at least I will know what a technician is doing.
 

Last edited by hvactechfw; 07-04-13 at 12:58 PM. Reason: removed unnecessary comment.
  #5  
Old 07-04-13, 01:00 PM
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Every situation/install is different. We really need pictures.
 
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Old 07-05-13, 06:11 AM
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Evaporator coils do need to be cleaned and should be part of annual maintenance.
That may not be the OP's issue, but is a good start at looking over the system.
 
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Old 07-05-13, 06:16 AM
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Evap coils should never need to be cleaned if the system has proper filters in place and are changed regularly
 
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Old 07-06-13, 06:25 PM
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Evap coils should never need to be cleaned if the system has proper filters in place and are changed regularly
We get that the evap coils should not need to be cleaned, assuming filters are handled properly. BUT many people do NOT handle their filters properly, and they know if they haven't. I have a guy that really though it was a brilliant idea to remove the filter, without telling me, to improve air flow. There is a HIGH volume of dust and pet hair in our house (dogs/cats/dusty field out back). SO, after 6 years in this house of irregular filter changes, and TWO months of running the AC without filters, it is safe to assume the evap coils might need cleaning.

Instead of arguing with people and saying 'What makes you think evaporator coils need to be cleaned?', just say that IF it is truly the problem, a professional will need to evacuate the sytem, cut the copper tubing to the coils, remove and professionally clean the coils while outside of the unit.

Then you are not agreeing that is the problem, but explaining important details if that is in fact the problem. Given this information, (especially about the evacuation), they most likely would have referred to a specialist anyways.
 
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Old 07-06-13, 06:55 PM
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Well, you have the answer and much of it was your own answer. Evaporator coils shouldn't need cleaning but under abnormal circumstances they may very well need to be cleaned. Further, it all depends upon the individual system on how to go about cleaning when they DO need cleaning.

If a "cased" coil was installed then it probably has removable panels to gain at ;least partial access to the coil. On the other hand, if an uncased coil was used with a field-built plenum then it is quite possible that no access panels were installed. If the latter, access panels will need to be cut and because the danger of damaging the coil is high these panels should be cut by a professional HVAC tech who will have the liability insurance to pay for any damage that might occur.

Several pictures of your installation may allow one of us to give you a better answer to your primary question.
 
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Old 07-06-13, 07:54 PM
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There are tests that can be done to see if the coil needs cleaning - pulling a coil for cleaning is a last resort.

It's not diy friendly in most cases because the refrigerant needs to be pumped into the condenser or recovered and the lines have to be physically disconnected to remove the coil.
 
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