[{"@context":"https:\/\/schema.org\/","@type":"LiveBlogPosting","@id":"https:\/\/livingpioneer.com\/rv-air-conditioner-leaks-when-it-rains\/#LiveBlogPosting","mainEntityOfPage":"https:\/\/livingpioneer.com\/rv-air-conditioner-leaks-when-it-rains\/","headline":"RV Air Conditioner Leaks When It Rains","name":"RV Air Conditioner Leaks When It Rains","description":"One of the greatest fears with an RV is that the roof will leak on you. Damage to the roof is expensive to resolve and different solutions are required depending on what it\u2019s made of. In some situations, you may discover that the RV air conditioner leaks when it rains. Fortunately, it\u2019s much easier to […]","datePublished":"2021-11-27","dateModified":"2024-01-03","author":{"@type":"Person","@id":"https:\/\/livingpioneer.com\/author\/pete\/#Person","name":"Pete","url":"https:\/\/livingpioneer.com\/author\/pete\/","identifier":2,"image":{"@type":"ImageObject","@id":"https:\/\/livingpioneer.com\/wp-content\/litespeed\/avatar\/30c83c48d82c080140bb064c7762d28a.jpg?ver=1779859650","url":"https:\/\/livingpioneer.com\/wp-content\/litespeed\/avatar\/30c83c48d82c080140bb064c7762d28a.jpg?ver=1779859650","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Living Pioneer","logo":{"@type":"ImageObject","@id":"https:\/\/livingpioneer.com\/wp-content\/uploads\/2020\/03\/living-pioneer-icon-logo-50x50-1.png","url":"https:\/\/livingpioneer.com\/wp-content\/uploads\/2020\/03\/living-pioneer-icon-logo-50x50-1.png","width":50,"height":50}},"image":{"@type":"ImageObject","@id":"https:\/\/livingpioneer.com\/wp-content\/uploads\/2021\/12\/pexels-kampus-production-7967392-600x400rPR.jpg","url":"https:\/\/livingpioneer.com\/wp-content\/uploads\/2021\/12\/pexels-kampus-production-7967392-600x400rPR.jpg","height":400,"width":600},"url":"https:\/\/livingpioneer.com\/rv-air-conditioner-leaks-when-it-rains\/","video":[{"@context":"http:\/\/schema.org\/","@type":"VideoObject","@id":"https:\/\/www.youtube.com\/watch?v=DbQ62okYwwI#VideoObject","contentUrl":"https:\/\/www.youtube.com\/watch?v=DbQ62okYwwI","name":"RV Air Conditioner Leaking Inside Motorhome ~ Advice Needed!","description":"Our RV air conditioner has sprung a leak inside the cab of the coach.  Today I'm going up on the roof to check things our.  After my inspection is inconclusive, we ask for your help to figure this out.\n\n-----------------------------------------------------------------------\nfreedomisthenewwealth.com\n-----------------------------------------------------------------------\nShow us a little LOVE and shop in our Amazon store!\nhttp:\/\/amzn.to\/2k4KVwD\n-----------------------------------------------------------------------\nOUR CAMERA GEAR\n\nSony RX100\nhttp:\/\/amzn.to\/2iQvrue\nSony Alpha 6000\nhttp:\/\/amzn.to\/2iZjF3M\nAlpha 6000 Wide Angle\nhttp:\/\/amzn.to\/2iQFkI5\nExternal Mic for Sony Cameras\nhttp:\/\/amzn.to\/2o3DCuB\nGoPro Hero 5\nhttp:\/\/amzn.to\/2juAeTY\nGoPro Karma Grip\nhttp:\/\/amzn.to\/2jF8a2s\nDJI Mavic Pro\nhttp:\/\/amzn.to\/2iQB7Ej\nCamera Bag\/Backpack\nhttp:\/\/amzn.to\/2jEXlgy\nThrillPro Selfie Stick\nhttp:\/\/amzn.to\/2oODMTO\nGorilla Pod\nhttp:\/\/amzn.to\/2pRCx5w\n-----------------------------------------------------------------------\nFAVORITE RV TRAVEL ACCESSORIES AND GADGETS\n\nThe Yeti 400 keeps our computers and devices charged and ready!\nhttp:\/\/amzn.to\/2oLDFd1\nTired of running the generator to watch a movie!\nhttp:\/\/amzn.to\/2orZ0VA\nThis 4g LTE cell phone signal booster is mandatory for our travels.\nhttp:\/\/amzn.to\/2os8XSM\nMorning coffee w\/o running the generator.\nhttp:\/\/amzn.to\/2oniziu\nDon\u2019t forget their special filters.\nhttp:\/\/amzn.to\/2oOpPFt\nKeep your morning coffee HOT!\nhttp:\/\/amzn.to\/2o3KRTn\nKeep your COLD drinks COLD!\nhttp:\/\/amzn.to\/2ondcjo\nKeep things HOT or COLD when you\u2019re active!\nhttp:\/\/amzn.to\/2on48ep\nWe love using an external generator, less noise \u2013 more efficient!\nhttp:\/\/amzn.to\/2o3Gckm\nIf that\u2019s too big, you can\u2019t go wrong with a Honda.\nhttp:\/\/amzn.to\/2os0Gyt\nThese travel backpacks fit nicely in the RV + Detachable Daypack.\nhttp:\/\/amzn.to\/2onhVBV\nThose things around our neck are Bluetooth head phones.\nhttp:\/\/amzn.to\/2o3JeVJ\n-----------------------------------------------------------------------\nDo you like our Royalty Free Background Music?  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This sealant adheres along roof edges, vent pipes, a\/c units, air vents, and even screw heads! Use on aluminum, mortar, wood, vinyl, galvanized metal, and concrete.","thumbnailUrl":["https:\/\/i.ytimg.com\/vi\/XjPi-ce3R1k\/default.jpg","https:\/\/i.ytimg.com\/vi\/XjPi-ce3R1k\/mqdefault.jpg","https:\/\/i.ytimg.com\/vi\/XjPi-ce3R1k\/hqdefault.jpg","https:\/\/i.ytimg.com\/vi\/XjPi-ce3R1k\/sddefault.jpg","https:\/\/i.ytimg.com\/vi\/XjPi-ce3R1k\/maxresdefault.jpg"],"uploadDate":"2016-09-13T18:32:48+00:00","duration":"PT58S","embedUrl":"https:\/\/www.youtube.com\/embed\/XjPi-ce3R1k","publisher":{"@type":"Organization","@id":"https:\/\/www.youtube.com\/channel\/UCf4FnrCHOTqrlng04zQ7_xA#Organization","url":"https:\/\/www.youtube.com\/channel\/UCf4FnrCHOTqrlng04zQ7_xA","name":"RV Parts Nation","description":"We love Rvers! So we supply you with top of the line RV parts, furniture, and accessories! 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Damage to the roof is expensive to resolve and different solutions are required depending on what it\u2019s made of.In some situations, you may discover that the RV air conditioner leaks when it rains. Fortunately, it\u2019s much easier to deal with this temporary problem than a serious roofing issue.It\u2019s important to isolate the leak and its true source. Only this way can you confirm if the trouble resides with the AC unit, its fittings, and seals, or the roof itself.It\u2019s too easy to draw the wrong conclusion here and take incorrect remedial action.So, read this article to diagnose it correctly and avoid wasting money.            Table of Contents                                    show                                                RV Air Conditioner Leaks When It Rains                            4 Common Causes of the RV Air Conditioner Leaking When It Rains                            #1. Mounting Bolts Loose or Missing                            Action to Take                            #2. Rubber Gasket is Faulty or Broken                            Action to Take                            #3. Shroud is Damaged or Missing                            Action to Take                            #4. Roofing Materials Are Damaged or Caulking Has Failed                            Action to Take                            Closing Thoughts                            Related Articles        RV Air Conditioner Leaks When It RainsThe common reasons for a Dometic air conditioner dripping water (or another popular RV AC brand) inside the RV, are as follows:Mounting bolts are missing completely or worked themselves looseThe rubber gasket is faulty or brokenShroud is damaged or missingRoofing materials are damaged, or caulking has failedNow we cover these causes and what to do in each situation where the RV air conditioner is leaking into the RV interior.4 Common Causes of the RV Air Conditioner Leaking When It Rains#1. Mounting Bolts Loose or MissingWhen the mounting bolts are too loose or have worked free and disappeared onto the road traveled, this could be causing the roof AC to leak water inside.It leaves a screw hole where water can access and reach the RV interior.When the rooftop ac unit is leaking water, this is a frequent cause of it.Get up on the roof and look at the AC installation setup. Visually inspect each bolt and check how tight they are. Note any bolts that are missing too.Action to TakeAccessing the bolts is best done using a ladder inside the RV, not from the roof.Take off the AC\u2019s panel interior cover and inspect the bolts. Typically, there are three or perhaps 4 bolts in place.Adjust the bolts one at a time. Do it gradually to ensure they aren\u2019t excessively tightened and damage the bolt itself. Get a snug fit with the gasket, but don\u2019t close the gap because it can break the gasket.Once the bolts are resealed, the rubber gasket that surrounds the AC unit should improve the seal.Tightened sufficiently, a little bit of the gasket will still be visible. This is completely normal with under an inch of gasket observable once finished.https:\/\/youtu.be\/DbQ62okYwwIVideo can\u2019t be loaded because JavaScript is disabled: RV Air Conditioner Leaking Inside Motorhome ~ Advice Needed! (https:\/\/youtu.be\/DbQ62okYwwI)Read Also: How to Keep Moisture Out of RV in Winter#2. Rubber Gasket is Faulty or BrokenThe RV AC gasket provides a waterproof seal around the edges of the AC unit between the cover and the surrounding area.The seal is designed to prevent anything reaching the inside of the AC unit and water from finding its way down to the RV ceiling and below.The tricky thing with the gasket is that it mustn\u2019t be crushed down by the bolts to the point where it\u2019s not visible. About half an inch or a bit more should be seen when properly fitted.It avoids the RV air conditioner sweating where condensation is getting stuck when the AC is operating, causing excess water around the seal creating a potential leakage.Also, being rubber, the gasket can deteriorate with age.Wear and tear should be inspected by checking if the rubber has become hardened or is breaking off in the hands. This can lead to a split in the rubber with water penetrating the crack.Note that if a gasket is cracked, it will undoubtedly allow water inside the AC unit when it rains. It may not be the only cause of water ingress, but it definitely is one of them.Action to TakeVisually inspect all around the rubber gasket to check for excess compression, drying out, flaking, or cracks.If you do find signs of serious degradation of the rubber, or a crack, it\u2019ll be necessary to purchase a replacement rubber gasket, remove the AC unit, install the gasket, and then reinstall the AC unit once again.It is also something that a qualified RV workshop can do for you. They can order the best RV ac gasket part and then book you in for an appointment in the workshop to fit it.https:\/\/youtu.be\/5NNLD0o-YQIVideo can\u2019t be loaded because JavaScript is disabled: RV 101\u00ae \u2013 How to Replace an RV Air Conditioner Gasket (https:\/\/youtu.be\/5NNLD0o-YQI)#3. Shroud is Damaged or MissingThe shroud covers the AC unit. It is designed to prevent debris from entering the functional space and clogging up the works. In addition to dirt, dust, twigs, and leaves, it also stops water too.A broken shroud will eventually be a major cause of AC leaks. It\u2019ll be necessary to get on the roof to visually inspect the shroud to confirm this.You\u2019ll need to walk around for a close-up inspection to verify if this is another cause of water ingress.Action to TakeWhen parts have broken off the shroud, the solution is to replace it completely.Any attempt to fix it otherwise is likely to only provide a temporary solution. The next major storm will remove any hotchpotch fix to an AC shroud.Use Google to confirm the correct shroud cover for either the make\/model or your RV or if the AC unit is aftermarket, then for that product specifically.Read Also: Can I Use Flex Seal on My RV Roof?#4. Roofing Materials Are Damaged or Caulking Has FailedThe last major possibility is an RV roof leak around the air conditioner. It can lead you to believe that the RV roof itself is helping to create water leaks inside the RV.With the caulking, if it\u2019s too high up, then condensation can pool below it, and get inside the AC unit, and into the RV. More caulking at a lower level can resolve this issue.It\u2019s also possible that water pooling around or near the AC unit could cause a water leak down into the RV. This could fool you into believing it\u2019s an RV air conditioner problem.That\u2019s even truer when water is leaking from near to the spot where the air conditioner is installed.It is a low probability event that the roof has deteriorated, or roof damage is the cause of water leaks instead of the air conditioner unit. However, don\u2019t rule it out entirely.If recent damage or cracks are discovered on the roof near the AC, then it\u2019s possible to use Flex Seal on the roof temporarily. This will help to seal it up before more permanent RV roof repairs.Also, if you haven\u2019t sealed your RV roof in a few years, don\u2019t be surprised to find it\u2019s now leaking. The two issues could be overlapping here.Action to TakeInspect the roof for damage, paying special attention to the caulking. Look for damage or it being bitty and coming apart.Take the time to look all around the AC unit area to see if any roof cracks or damage from a storm could be allowing water to ingress into the RV. If there is roof damage, maybe insurance will cover it.How to seal around RV air conditioner? When the roof damage is found near the AC, this can be repaired using RV roof sealants.Also, if the caulking on the AC is too high, resealing at a lower position can prevent condensation build-up that gets into your AC system and down into the RV.This Dicor Self-leveling sealant is one of the most popular for sealing and caulking:https:\/\/youtu.be\/XjPi-ce3R1kVideo can\u2019t be loaded because JavaScript is disabled: Dicor Self-Leveling Lap Sealant (https:\/\/youtu.be\/XjPi-ce3R1k)Dicor Lap Sealant \u2013 White 501LSW-1 (4 Pack)Check at AmazonIf you click this link and make a purchase, we earn a commission at no additional cost to you. \u2139It\u2019s also possible to add either a shim or an additional gasket to increase the height of the RV unit above the water level on the roof.These steps can help to prevent future water from finding its way into the AC unit during a rainstorm.Read Also: How Often Should You Seal Your RV Roof?Closing ThoughtsA water leak through the AC to the motorhome floor only when it rains is likely caused by the mounting bolts, the rubber gasket, the shroud, or a roof issue.There are other causes of RV air conditioner leaks such as a grubby evaporator coil, bad RV air conditioner drain tube, or blocked drain hole.However, these cause water leaks any time that the AC is running; not only when it rains. This is an important distinction to make when diagnosing an internal water leak originating near the AC unit.Related ArticlesHow to Keep Moisture Out of RV in WinterHow Often Should You Seal Your RV Roof?Can I Use Flex Seal on My RV Roof?Does RV Insurance Cover Roof Damage?RV Fiberglass Roof RepairHow to Heat a Camper Without Electricity"},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"RV Air Conditioner Leaks When It Rains","item":"https:\/\/livingpioneer.com\/rv-air-conditioner-leaks-when-it-rains\/#breadcrumbitem"}]}]