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Old 02-07-2010, 04:18 PM   #16
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Noisy Trane XE 1000 outdoor compressor


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CLR might eat the aluminum,don't know for sure though. A soft hair brush will get that off.
Since neither one of is sure, then I'll wait and buy the correct stuff to be on the safe side.

That is some NASTY caked up stuff on the coils. The brush alone is not going to do the job without some chemical assistance. At least not without destroying the fins.

After just a minute of brushing.


This big piece fell right on my face.


Do NOT try this without a full facemask & goggles.

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Old 02-07-2010, 04:27 PM   #17
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Wow, after just a few minutes of brushing gunk off, the HVAC system is already MUCH quieter inside & outside!!

Air smells a little funny though.

Btw, this is my first house in case anyone is interested. All of this stuff is new to me.
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Old 02-07-2010, 04:28 PM   #18
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Just spray it with water for now to loosen it up and the brush it down. 90% will come off with water alone.
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Old 02-07-2010, 07:01 PM   #19
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Just spray it with water for now to loosen it up and the brush it down. 90% will come off with water alone.
That did help quite a bit. I knocked off quite a bit of the gunk. There is still much left inside the fins, but the gunk stuck to the outside is mostly removed now.

Still getting the whining from the outdoor unit. Hopefully after I finish cleaning next weekend, the whine will go away. Or I'll start troubleshooting the next thing.

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Old 02-07-2010, 07:02 PM   #20
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You'll find that Simplegreen will work well on that coil. And won't harm the copper or aluminum.

Spray it on both sides of the coil so it can soak through from both sides.
Then rinse with water at least twice.

And you will gt a slight odor from it for several minutes.
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Old 02-07-2010, 07:03 PM   #21
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That did help quite a bit. I knocked off quite a bit of the gunk. There is still much left inside the fins, but the gunk stuck to the outside is mostly removed now.
Simplegreen it.
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Old 02-07-2010, 07:22 PM   #22
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Thanks, I forgot all about simple green. I think I've got some Purple Stuff somewhere. Maybe even Simple Green but not sure. Superbowl is on now.
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Old 02-13-2010, 03:12 PM   #23
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Okay, I've made a little more progress.

I got the $6 cans of Coil Cleaner from Home Depot and cleaned up the coils a bit more. I'll be continuing this today.

This is as far as I've gotten so far with the right side coil.




Very noticeable difference before/after cleaning:



I just pulled the blower out. I'll clean it and also the extra room makes it easier to clean the left side coil.

This is what the HVAC inside unit looks like with the panels removed:


Shut off power at the breaker.
Then disconnected the blower cabling:


Removed the two screws on each side (4 screws total) to slide the blower out:


This is what the HVAC looks like with the blower removed:


Here's the blower outside so I can clean it:


And here's a pic of the blower blades. Very gunky/nasty:
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Old 02-13-2010, 11:15 PM   #24
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The blower fan was pretty dirty also. I found the weights! I made sure not to knock any of them off.



As well as the housing it was in.



But I cleaned it up.



Here is the super clean fan. It looks ugly, but you can't do anything about discolored metal.



The housing is clean now also. Inside & out.



Vaccumed and wiped down the area where the blower fan goes.



And here is the finished A-Frame coils, all shiny & ready to go.


I had a little scare when I turned everything on and the fan wouldn't do anything. But I went back to the dozens of pics I took and noticed there were some wires that got knocked off somewhere along the line. I used the pics to put the wires back on the correct spades and everything is rockin-n-rolling now.

Quieter and already seems to have warmed up the house quicker than usual. In fact, it's off right now. And it's usually running almost constantly. But it warmed up the house quickly & turned off. sweet.

Thanks for the tips, everyone!
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Old 02-13-2010, 11:51 PM   #25
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now go outside and clean the condensing unit since youre on a roll!
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Old 02-14-2010, 08:46 AM   #26
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So the elephant in the room is: Do you have an air filter in the system? Do you change it regularly? What kind is it?

Also, on your coils, it looks like a good portion of your fins got bent when you were cleaning. This can restrict the airflow thru the coils and impact the system efficency.

They make a coil brush that you carefully use to re-align the fins. I dont believe it is available at any of the BOX stores.

Maybe one of the HVAC pros here will chime in on if you need to do anything.

BTW, great job being thorough and cleaning it up. Nice pictures and documentation.

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