odd stains on my roof from ac unit, any thoughts

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rockwind1

Well-known member
Joined
Mar 1, 2015
Posts
57
so i got this unit running by putting in a new start capacitor but i noticed these unusual darkish stains coming from both sides of the unit,  one side it is even kind of greenish.  is this an indication of anything? 
 

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Mold and Algae ..  Starndard things where watter is dripping on the roof from the condensate drain.

Recommended treatment is Mop, Bucket, Spic & Span, and a garden hose.

Mop the entire roof, working in like 3 foot sections, starting as far from the ladder as you can

Mop it clean, hose it down and move on to the next (Still dry) section.. Till you finish while standing on the ladder

OH, you will find this improves the effiency of hte Air Conditioner too.
 
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