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Old 07-24-2013, 09:56 AM   #16
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No access to HVAC Evaporator Coil


Jay, how did it turn out?

I just cleaned the coil in my rental unit. Man, that was some nasty junk on the coil - about 1/8" thick and nasty. I got it off though. I also had to install a safety switch in the secondary drain, because the installer left it wide open and the tenants heard water leaking (secondary drain) from the closet where the unit is installed, plus they used 1/2" drain pipe. I took care and now the unit is good to go.

Hope all worked out for you.

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Old 07-24-2013, 10:48 AM   #17
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I haven't gotten around to doing it. Here in Jersey, it's been very hot lately and I didn't want to fiddle with it at the moment. Did you have access to the coil or did you have to cut it open?
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Old 07-24-2013, 11:05 AM   #18
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Quote:
Originally Posted by jay235 View Post
I haven't gotten around to doing it. Here in Jersey, it's been very hot lately and I didn't want to fiddle with it at the moment. Did you have access to the coil or did you have to cut it open?
Fortunately, I had access at the front - no cutting. I can understand not screwing with things until it cools down a bit. We had that heat down here in MD, too. It's a bit cooler today. Do you plan to install the safety switch - it's an easy install (see below). Cheap insurance.

http://ows.rectorseal.com/Safe-T-Switch-SS2.php

http://ows.rectorseal.com/product-da...2/inst-SS2.PDF
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Old 07-25-2013, 02:08 PM   #19
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I cut out the duct today and opened up the inside of the a-coil. Not much dirt/gunk at all which was pretty surprising given the system is over 15 years old. I guess the regular change to the air filter helps. I still sprayed on the coil cleaner and then sprayed on water since I had opened it up.
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Old 07-25-2013, 05:24 PM   #20
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Did you cut a hole so that you are looking at the inlet or outlet side of the coil. Outlet side usually does look clean, when the inlet side is dirty.
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Old 07-26-2013, 06:29 AM   #21
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Originally Posted by beenthere View Post
Did you cut a hole so that you are looking at the inlet or outlet side of the coil. Outlet side usually does look clean, when the inlet side is dirty.
Yes - I opened the panel so that I can also see the inside of the coils. Both sides looked pretty clean.
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Old 07-26-2013, 07:57 AM   #22
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Usually, when I go to all the trouble to cut open a plenum to inspect a coil. I spray it with cleaner even if it looks clean. just to make sure.
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Old 07-26-2013, 01:23 PM   #23
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Yes, completely agree with you. I did spray with the coil cleaner.

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