Fixing Air Conditioner Water Drip - Quick, Messy, Effective!

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Introduction: Fixing Air Conditioner Water Drip - Quick, Messy, Effective!

About: Update 12 September 2017: A very special thanks to Sam Elder, a manager here at Instructables, who tracked down the cause of my lost publications and fixed the issue. Take a bow Sam!

This air conditioning unit evaporator is dripping water inside. Could it be a blockage on the condensate drain line? Hmm. The first place I checked was the discharge end of that pipe.

Step 1: Gunk!

Luckily the elbow wasn't glued to the down pipe. A wiggle and it popped off easily. A lot of gunk oozed out of that small section of pipe. Ewwww!

Step 2: The Down Pipe.

I saw more nasty gunk hanging out the down pipe so I stuck a screwdriver into it and swisher it round. Some more stuff fell out but I figured there was even more.

Step 3: Even Higher!

Necessity sometimes breeds desperation. I popped out the condensate tubing and was rewarded with a copious shower of gunk all over my head. Dammit!

In the future, the fastest way to clean out gunk build up is to spray vinegar into the evaporator fins followed by the spray of fresh water.

No more drippy drippy indoors!

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    A quick way to open a clog is to use a garden hose. Turn it on and bend it to stop the flow. Then place the hose on the end of the drain tube using a hand to hold the hose and drain together. Unbend the hose and count. Start small with 5 sec and pull away from the drain. If only a litter water comes out the repeat and count 10 seconds. Do this a bit more at a time till the gunk comes out and continue till just clean water comes out. If the unit has a drain pan that will have to drained as well with a wet vac. As the drain outside usually connects directly to the unit and the drain pan is for the over flow pipe from the unit. Some units will also have a float switch on the pan or in the drain pipe close to the unit. The switch will keep the unit from running when there is a back up or full pan.

    Great instructible, but please don't use bleach. It causes corrosion of the aluminium fins. Use warm vinegar or cheap vodka, works just as well.