Affichage des articles dont le libellé est Dirty coil the problem? Or multiple issues?. Afficher tous les articles
Affichage des articles dont le libellé est Dirty coil the problem? Or multiple issues?. Afficher tous les articles

Dirty coil the problem? Or multiple issues?

mercredi 1 juillet 2015

About the unit: It is a carrier split unit. Electric. Provides heating and cooling. Sorry, I don't know much more about it than that. This particular unit cools the top level of my house, which is actually 1 large room about 800 sq ft.

I've tried to resolve the issues and have come up against a few things that needed to be taken care of but its still not working as it should.

Originally, the airflow coming out of the vents was weak and not cold.

I have an electric air cleaner so I took out that filter and cleaned it, along with the main part which I believe does the zapping (sorry, don't know its name).

The blower motor spins fine, and when I have the side panel off the airflow from the outlet vents is strong which lead me to believe it was a blockage between the inlet and blower motor. I ran the system without the electronic air filter and the airflow still wasn't strong or cold which left the evaporator coil.

I used a can of this stuff, which brought some crap to the surface. I sprayed it on both sides. I used a soft brush to brush that crap away.

http://ift.tt/1IuMmMM

I then purchased this and used about half of it so far:
http://ift.tt/1IuMlZf

And then, for good measure, I took my steamer and steamed it (although I didn't do this for very long). The steam seemed to go through the coils without a problem.

I ran the system. The airflow is much better, but I think it should be better than it is. The temp isn't dropping below 90, usually hovering around 93. I used a infrared thermometer and after the unit has been running the temp difference between the inlet and outlet is only 3 degrees. I believe that should be around 20.

So, I opened up the system, and there is some icing along some of the lines. Its not along the main coil units like I have seen on some images/videos.

Name: sd1.jpg Views: 2 Size: 853.8 KB

I also took a picture of the coils. Its hard to get our head in there, and from the picture it looks like it could still be a bit dirty, but I'm wondering if that would be enough to cause all of these problems? I thought I had cleaned them up but looking at the pictures I'm guessing not. I noticed a few bugs in the picture, I'm wondering what's going on in the parts I can't see. Would using a compressor to blow from the bottom up be a good idea?

Top coil:
Name: sd4.jpg Views: 2 Size: 1.51 MB

Bottom of the coil:
Name: sd3.jpg Views: 2 Size: 1,003.0 KB



After taking the picture of the top of the coils, it looks like its not as clean as I thought it was. But can that still be the sole cause to this problem? I was thinking of getting another couple of cans of the Web coil cleaner to give it another nuking. Although I may try some hot water and dish detergent first.

Is this a Freon issue? I had the outside condenser unit replaced about 2-3 years ago (original was stolen).

Does anyone have any suggestions?

Thanks in advance.
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Dirty coil the problem? Or multiple issues?