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Question DetailsAsked on 5/19/2017

Not sure if it's worth repair for wall mounted air conditioner leaking water

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1 Answer


If there is a water line connected to the unit (as opposed to just a drain line leading outside or to a sewer pipe), it is a swamp cooler, not an A/C, and probably just has a minor leak that should be readily fixed.

If an air conditioner, then it would have no water supply to it, so the leakage would be condensation on the evaporator coil (which is the cold coil the air blows past to cool the room), and leakage would mean a crudded up catch pan drain hole, or crudded up (with lime or algae or mold) drain line. Or possibly a corroded out drain pan.

Check operator's manual on how to clean the pan and drain line - pan on window type air conditioners is commonly a pull-oput tray like on reefers which can just be cleaned in the sink, or outside (to avoid damaging pipes) with vinegar or Lime Away as needed to remove lime scale. The drain line can commonly be cleaned with a bit of vinegar or lime away poured into it, followed by hot water - sometimes the line needs to be cleaned with a long bristle brush, or replaced if badly gumked up - usually not a tough DIY job - just some plastic tubing from home improvement store or plumbing shop and a couple of hose clamps. If metal, a plumber who has a retail shop should be able to make up a new one for you or clean it out for you for probably $25-50 - or buy a new one from manufacturer or Sears Parts or such if still a current stock item.

In either case, leaking water would normally NOT be indication of a serious problem - maybe some cleaning, maybe a new drain line or new drain pan at worst.

If not up to doing it yourself, probably still well worth calling a Heating and A/C contractor at probably about $75-150 labor and a few bucks parts maybe to repair it, rather than the probably $500-1000 range to replace it - ASSUMING this is a signficant say 20,000 of more BTU unit. If a small 3000-7000 BTU slip-in unit which goes for $100-200 at Walmart or such, then if you cannot clean it up yourself (and especially if this is over 5 years old) assuming you can remove the old one and install new one yourself (or with a friend/family member) then a new one might be as cheap or cheaper than a professional repair.

Other alternative ifnot able to do it yourself and a small store type unit, would be to call a Handyman at typically $50-100 minimum charge to come and see if he can fix it, and if not, then to go get a replacement at a store and install it. Not much cheaper than a HVAC guy, but most HVAC guys will not go to a store and pick up a cheap window unit and insatall it - they will want to sell you a $500-1000 unit out of their stock if they will handle a window conditioner at all.

In some areas (especially areas with lots of window air conditioners), Appliance Repair - Large is your Search the Lsit category for repairs for window air conditioners - the same repair service you would call for reefer or other appliance repair, though might not be the same tech.

Answered 3 years ago by LCD

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