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dustball clog defrost drain tube


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5 replies to this topic

#1 howardc64

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Posted 09 June 2013 - 01:33 AM

Jenn-Air side by side. Had a puddle of water next to the freezer door, when I opened the panel to the heat exchanger, I had the classic symptom with the drain tube was buried under a sheet of ice.

 

Melted the ice and eventually cleared the drain tube with weed wacker lines. Fed the line through the drain tube and tied a tight loop on the other end of the drain tube to help clear anything inside. I pulled out a wet dustball mess. Eventually, I took out the drain tube and clean it and the nipple from the drain completely.

 

My question is... what would cause my drain tube to clog with a dust ball?



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#2 DurhamAppliance

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Posted 09 June 2013 - 06:38 AM

Since you did not follow well posted instructions regarding the posting of the model number in question, I could be wasting my time.. but it's Sunday morning and my Mom told me to always play nice on Sunday mornings.. so here goes;

If the nipple (check valve) is of the duck bill variety, then you may want to check out this thread... particularly Kdog's v-cut modification. http://appliantology...l-refrigerator/

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#3 NCARepair

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Posted 09 June 2013 - 09:28 AM

Dust in the air sticks to the evaporator coil,unit defrosta taking with it the water and dust, then it builds up over time in the drain tube trap or valve and plugs up.

#4 howardc64

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Posted 09 June 2013 - 09:48 AM

Hi: Thanks for the replies and I do apologize for not including the model info on the original post. I should know better as a senior forum member on car repair forums :) The frig is a Jenn-Air JCD2389DES side by side. The defrost drain is pretty easy to get to. I removed the drain tube + black elbow from the back to clear everything. There doesn't appear to be a check valve or filter/trap of any kind in the drain fitting or the drain tube itself. Please correct if my understanding is correct.

 

 

A quick history just for full info. I did replace the defrost control board on this frig a few years ago with the newer design as the old one was not defrosting properly. But that repair probably have nothing to do with a clogged defrost drain.

 

Thanks for NCARepair for the note. It makes sense, I was thinking similarly last night going over how refrigerator works. The fan on top of the evap coil basically circulates air in the whole frig and there are no filters to trap any dust from entering the evap coil chamber and sticking on to the coil and eventually drip down during the defrost cycles and clogged the drain. This frig is nearly 10 years old so I guess this is probably a maintenance item every 5 year or so :)



#5 Spannerwrench

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Posted 10 June 2013 - 04:59 PM

You need to replace the duck bill on the drain tube it has been modified to help correct this problem.

Modified Duck Bill Part# W10309238
http://www.repaircli...0309238/1937679
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https://www.dropbox....frost Drain.pdf
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#6 DurhamAppliance

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Posted 10 June 2013 - 05:55 PM

I've had problems with both designs so I do the V-cut modification as noted in the link above


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