Drain clogged on mini-split A/C ??

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Old 07-08-16, 05:20 AM
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Drain clogged on mini-split A/C ??

i have a mini-split ac. the indoor unit started to leak water because the drain pipe is clogged. i detached the drain pipe from the unit and tried to unclog it with a blower and a vacuum machine several times. but still the water would not go in. i can't access the other end of the pipe because it goes within the wall to the house's drainage system. i don't know what to do now. years ago i had the same problem with an older unit, the technician suggested i drill thru the wall and put a new drain pipe where it drains water to the outside of the house but i don't want that.

any suggestions?
I'm thinking of putting some drain opening powder & bleach on the drain plate, but could this be dangerous and ruin the indoor unit?
 
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Old 07-09-16, 12:42 AM
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Welcome to the forums.

i can't access the other end of the pipe because it goes within the wall to the house's drainage system.
That is completely wrong !

The drain line is normally run outside with the refrigerant lines. If it is kept in the house.... the line should be placed into a standpipe with a proper trap.... allowing for service.

At this point you have no choice but to run it outside. You can't use any chemicals in that clear pvc hose or you'll risk damaging it and having leaks in the wall.
 
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