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Question DetailsAsked on 2/13/2018

how much would it cost to unhook a outdoor central air unit and reconnect and replace freon then clean condenser wi

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You don't say why replacing freon - or did you mean a disconnection for a repair, recovering the freon, then recharging it with that freon plus maybe a bit of maqkeup gas ?

Just a disconnection (say to replace a part, without the part itself) and recharging using the same gas which was taken out plus very little makeup gas, probably around $150-250 in most areas - assuming the connection point is readily accessible. If the freon is contaminated/scorched or had bled completely out so it has to be replaced, can run anything from around $40/lb on up to $150/lb depending on who much the HVAC guy is ripping his customers off. (Wholesales about $20-25/lb in large bulb tanks, $30-40/lb in 30# canisters right now). Some also charge $100-150 range commonly for the recharging labor and equipment, some roll that into a higher gas price so be careful what is included if getting quotes on recharging with new gas. [If by "freon" you meant refrigerant and you have the neweer R-410a gas, then that is running $6-10/lb right now whole sale price, and same type of price gouging to $100/lb or more can be found with some vendors - more so now that many are advertising that R-410a is also scheduled for phaseout for environmental purposes].

You said clean condensor with ... and your post ran out - if you mean a normal exterior condensor clean on the outside only, probably around $50-100 more in addition to above work, at same time. If you mean a chemical tanking (flushing inside and out for thorough cleaning - rarely done on household units because takes two trips to do it (tanking has to be done at the shop or more commonly at a commercial radiator/coil shop) probably more like $150-300 for that part of the charge. If instead of condensor coil (outside, by big cooling fan) you meant the evaporator coil (inside, in air handler or ducts) more commonly $150-300 range for the cleaning depending on accessibility and whether it has to be removed for cleaning or can be cleaned in-place - more like $300-500 if including tanking.

Here are some links to similar questions (especially about Freon replacement) with answers - more, including about the repair versus system replacement issue if repair costs get high on an older unit,can be found in the Home > HVAC link, under Browse Projects at lower left.

Answered 2 years ago by LCD

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