Tricky Maintenance Panel to Evaporator Coil


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Old 06-12-16, 10:52 AM
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Tricky Maintenance Panel to Evaporator Coil

I have not used the maintenance panel to the evaporator coil yet, so looking for some advice.



The maintenance panel is not sealed with foil tape - the sealant is a glue or paste. More troublesome is that it looks like the original installer drilled a hole into the maintenance panel to install the drain pipe and then sealed it with a clear bonding agent (maybe an epoxy?)

How should I get at my evaporator coils? This maintenance panel seems to be sealed up pretty tight. I'm not keen on breaking all of the seals going in and out of the duct. I am contemplating cutting a new maintenance panel on the other side of the duct - because there is a lack of piping over there - but that seems a bit extreme.
 
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Old 06-12-16, 11:03 AM
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Why do you want to get to the coil?
 
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Old 06-12-16, 11:51 AM
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I want to check to see if the coils are dirty. I possibly need access for cleaning, like in this video.
 
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Old 06-12-16, 03:01 PM
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If you have been changing the filter regularly no need to open it up.
 
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Old 06-12-16, 04:24 PM
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Regardless of intent, any ideas on how to open this up?
 
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Old 06-12-16, 05:42 PM
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Looks like a standard vertical evaporator coil.

https://www.amazon.com/DA71010-KLENK...rds=Duct+knife

A duct knife, a 5/16" nut driver and a 5/16'' ratchet wrench should get you in there. ( some manufacturers use 1/4" hex head screws instead)
 
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Old 06-12-16, 06:08 PM
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It is the panel under that panel that will be the hard part.

 
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Old 06-12-16, 07:44 PM
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Thanks for the picture! That will give me some helpful context.
 
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Old 06-12-16, 09:13 PM
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Now you know how to get to the coil. Here's the real problem. In Houston's picture you are looking at the clean side of the coil. The dirty side is inside the A.

It's sometimes easier to remove the blower assembly in the bottom of the furnace and look up.
Sometimes a flashlight and mirror is needed.
 
 

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