RV AC Coil & Filter Cleaning - Air Conditioner Maintenance Made Easy
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- čas přidán 30. 04. 2022
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RV Air Conditioners need to be cleaned in order to work efficiently. In this episode, we’ll show you how we clean our RV AC condenser and evaporator coils, filters, and other areas to keep your AC running nice and cold. After 5 years our Dometic AC looks and operates as well as it did when we bought it in 2017. Thanks for watching, please like and subscribe.
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HVAC tech for over 20 years and this is spot on. First time I’ve seen someone mention the thermistor as well as removing the negative post first. Great job.
Thanks Edward, I did my research and even spoke with an hvac mechanic.
Does the refrigerant ever need to be recharged or anything like that? Like you would with an automotive system?
These are nonserviceable, sealed systems, unlike your home.
My popup camper a/c will cool for like 10 mins max, then the compressor cuts off for 6 mins or more. And never gets cool inside. My filters was real dirty. But when i take the filters off and the inside shroud cover. It will then cool the camper until it froze up. So do you think it's possible the coils need cleaned inside and on the top? We just bought the camper.
@@jasongee663That's what I was told about our new-to-us RV. But right now it's getting up to 105 so this will have to wait a few days til the temps drop again.
I just watched a video from another channel on this. Dude, your walkthroughs are the best out there. No bullshit fluff either.
Doing our best to be thorough without wasting time, and still be enjoyable.
Great video: straight to the point, no wasted rambling, easy to understand process without burdening it with detail. Well done!
glad it helped!
This is the 2nd video of your videos I’ve watched and it’s the simplest, most informative, and best video I’ve seen on this topic. Thanks for making this stuff easier for a newbie like me.
We appreciate that, thank you for watching our videos!
Spot on with the cleaning! Did mine over the weekend and also I watched your video on the vent modification you did earlier. Well when I went to take out the inside filter it appears Gulf Stream did it for me! After taking everything apart and looking at their handy work they did a good job,, imagine that if you will. Anyhow you put out some good advice and as long as I’m standing upright I’ll be watching your programs. Makes me feel smart😂😂
😆 Comment of the week Rick! Thanks buddy!
This video was the best, concise and understandable from start to finish! I really liked how you shared the type of spray to clean with. I am now a Subscriber and I approve this video!
Thank you Keith!
Ross, good video and explanation. I have watch several of your videos and you always do a nice job balancing length of video, timing, and covering the material.
Thank you Scott, that balancing act you talk about is the goal. Not always easy.
This was the best, most comprehensive video I’ve watched on air conditioning cleaning. Thank you!
Glad it was helpful!
Thank you so much for the information on cleaning ac, we have a small surveyor and are outside nola and it's humid and very dusty in the campground were at, this video was so good, thank you again also thank you for getting straight to it and not adding a bunch of other stuff!!! God bless you & family abundantly and Happy camping!!!!
Thank you!!!
Best A/C maintenance video I've seen. Thanks and well done!
Thanks Paul, appreciate the kind comment.
Nice Informative video. Nice Job! We have the same A/C. We just did a minor overhaul of ours (9 years old). You can use a can of air you use on computers and electronics to blow out all of the dust. Also a paint brush with soft bristles helps. While you are up there, wiggle your fan shaft forwards and backwards and spin it. It may need to be soon replaced if it is noisy or too much play in it (There are videos on this). Take a pic of the tag on the fan housing for future reference. Unscrew the two bolts holding the metal box you see. Remove the box and check the wiring. Also take a pic of the start capacitor for future reference. If you fan or compressor stops you might need a new one. And, take your inside cover housing completely off and retighten the bolts holding your whole unit down on your rv. Just some additional tips while you are at it. The above fan motor, start capacitor and the cover shroud can be found on Amazon and Ebay.
Thanks for watching and commenting. All great tips. I did however just want to keep to the subject of cleaning for this video. Mechanical maintenance is a whole other animal and will be a video in the future. Thanks again!
This is one of the best videos on how to clean an RV AC! Thanks.
Glad it was helpful!
And here I was thinking I knew about everything there was to do on my RV. 🤣 Great stuff Ross! Guess I’ll be getting on the roof! 😂 Thanks Bud! Another great video!
Super easy, And it’s like changing your oil. You feel so much better after it’s done. Thanks for watching again my friend.
I had to remove the fan and condenser coil shroud because I saw that the fan-side of the condenser coil was very dirty. Had never been done … 2018. This cleaning along with the inside mod with TP resulted in such an incredible system. I’m ready for the AZ heat! Thank you!
Glad to help my friend. Stay cool!
Future video suggestion. We have service line shut off valves throughout our homes. Why RVs have none remains a key head scratcher for me. I installed a simple in-line shut off valve when I replaced the broken (from freezing most likely - oops) flush valve on one of my RVs toilets. This was an easy DIY mod that not only made replacing the valve less messy, but also allows me to isolate/ stop water flow to this toilet when (unfortunately not if...) future repairs are needed. Over time, I intend to install in-line shut off valves on all of my water lines (other toilet, kitchen & bathroom sinks). I’d make this video myself, but time & good video equipment are limiting factors. Thanks for your straightforward, easy to follow presentation style. Much appreciated.
Jeff, excellent recommendation, been wanting to do this for about 2 years now, haven’t had much time but within the next year some things will be happening with the channel that will allow us to hopefully put a video out every week instead of every 2 weeks. Hang tight!
Brotha you do some amazing videos. I’ve learned so so much from these videos. Thanks so much.
Glad to help, thanks for watching Matthew.
Ross u r da boss!!! Niiice comprehensive video with tips I was not aware of…gr8ly appreciate it!!! Cheers and 🍻🍺
Thanks Mike 🍻
Super helpful, answered every question I had plus some I didn't know I had.
Glad it was helpful!!
I’m up there every few months and it never gets dirty. Thanks for the content.
Any dirt that does get pulled in the area of the ac unit won’t be visible until you pull the shroud off. Everything outside of the shroud is washed away in the rain so that may still look clean when the coils are dirty.
Absolutely informative and in layman's terms, atta boy. Only one constructive criticism about the evap coil"....so your coils don't freeze, expand, and rupture..."??? Gotta get more familiar with refrigerant, my friend. Heat, not cold, causes it to expand...that said, one of the best and most thorough videos I've seen. Good on you, sir. Blessings.
👍👍. Once again , info I wouldn't have known before now. Thanks again.
Anytime Warren.
👍 Informative and timely segment Ross! Appreciate the how-to. Very helpful!
I really like what your doing with your Amazon store. Very convenient!
Nice shout-out to #endlessrving - Izzy and MJ are awesome!
Thanks again Will.
Thanks for the tips and tricks! I purchased those cleaning materials w/ your links ; ) Keep up the great content!
Thanks for supporting the channel!
I totally just used your instruction to clean our a/c! Thanks!
thats awesome Sarah!
Cute pups!!! Thanks for the video.
Thank you for watching!
Great tips and application. Thank you!
👍🏼
Very useful video, thanks to you. I will be performing this task in a couple of weeks when camping season opens up here in 🇨🇦.
Thanks Paul, opening a camper is almost as fun as camping itself.
@@RVTIPSANDTRAVELS I agree Ross and my camping season is from mid-May to mid-September so we don't get fed up because it is not all year round and I always get excited when the camping season opens up. This May will mark my 19th year at the same campsite.
That’s awesome, probably is like a second home for you.
It is for sure, I’ll send you pictures of my setup.
Well done. I use pleated filters. I’m a HVACR Contractor. Was great to see the blower and other items cleaned.
Thanks 👍
I’m going to do this. Thank you.
Didn’t even know this was a thing, thanks for sharing.
You’re not alone.
Great vid. Learned much.
Glad to hear it!
Wow, thank you. Always wondered and will do mine soon!
Enjoy!
Thanks for the info it really helped me out
Glad it helped
Looks almost brand new again good job
Hope it helped.
Thank you this was very helpful. We have our fifth wheel no for one year and the rear ac unit start turning off after making a noise. we thought maybe because of the Arizona heat 115F but it was very dusty. So ill clean it up now and hopefully things go better.
its easy, and will definitely help. let me know of any questions.
Great video. Thanks for posting! 😎🤘🏼✌🏼
Thanks for watching!
@@RVTIPSANDTRAVELS I cleaned both units last week using your video step by step and everything came out great. What a difference! Should be super easy next time. 😎✌🏼
Great info thanks- my fan motor bit the dust(bushings) 20 years old so whatever. Was recommended to replace the capacitor’s while I got the turtle shell off.
I’m gonna do a good deep cleaning like you showed while I’m up there!
You have an awesome channel!
🐸🦞
Glad it helped! Thank you!
Out here in Nevada it gets dusty. After watching this I think I should up my cleaning to 4 times a year.
Probably a good idea!
Thanks ! This would seem obvious - I never thought there were two "radiators" to look at. Again, thank you very much.
Thanks for the comment!
That is one CUTE puppy 🐶
He sure is!
Ross - this gets me thinking. I have a white powdery dust material coming out of my AC ceiling vents. Our unit is a 2021 Jayco Greyhawk 30z with dual Coleman-Mach AC units. Have you ever seen this? It is not construction debris or dust left over from the assembly process. I pulled the interior covers off and vacuumed them out, as well as sealed all the open areas into the ceiling with silver metal duct tape where needed (and it was needed). I also pulled off all 12 of the round ceiling vents and looked into them. There was some construction dust/material in them. I used a shop-vac to suck from the ceiling vents while running a leaf blower into the supply ducts to evacuate all of said debris. I then reassembled the entire system. The white powder dust snow came again after several days of using the AC units. Pulling down the interior covers again yielded a non-significant amount of this white powdery substance on these covers that were just cleaned days before - all while parked, i.e. no driving in between. I believe that this is aluminum oxide coming off of the evaporator coils after being used ( i.e. getting wet and then drying). Once dry, when the AC fans kick in, the snow comes out of the AC vents again. Thi si a significant amount and covers everything in the RV - including getting into food, drinks, etc. Not fun. Very annoying. I am wondering if you, or anyone seeing/reading this, or anyone you have talked to has seen this occur in their RVs. If so, did cleaning the coils fix the problem? Or are the coils defective from the factory and need to be replaced. This is such an annoying problem. Any insight?
Cleaning the coils may fix the issue, but doubtful. You make have a slice or hole somewhere in the ducting that is pulling the insulation into the ducting.
Thank you for the information.
You bet!
Thanks for the vid! 😃👍
Thanks for the comment Cal!
Could you make a video on maintaining your slide outs please 🙏 thank you
RV tech here! Great vid!
Awesome! Thank you!
Man, If I ever l buy a used RV, I hope I can find one from someone who has maintained their RV as meticulous as you have yours. Great job.
Thank you!
I would love to see a video about replacing the stereo as you show in the video.
Working on it
Well done
Great video
Thanks!
Thanks for the tips working on my AC Teepee foam board project. Just subscribed 👍🇺🇲
Welcome aboard! Fa fa foo hi!
@@RVTIPSANDTRAVELS you get it, lol🇺🇲
Listener for a long time, in fact I was listening live on 9/11.
@@RVTIPSANDTRAVELS same here yeah I remember listening to him that day
I just did that today & there was a wasps nest but they had vacated in the past, the evaporator coils & fins were clean looking. the condenser fins were all gunkd on the outside but not inside, strAng who’d think?, a short, fat screw driver with gentle touch for fin bends & then that frost cab brush to fine straighten them Cms to work. putting cover back on without bump-dNTng them again is a subtle endeavor though😯👋
While I’ve seen this before, I like to visit this video before I do the task. Great video! And for those looking to improve your AC efficiency while reducing noise, watch his AC mod video! It did wonders for mine.
Awesome, thank you for being here, we very much appreciate it.
Have you done a video on resealing around all of the components on the roof? Such as any seams, around roof vents etc. dealer told me it should be done using self leveling caulk. A how to on this would be great.
I haven’t Rick, but I’ll put that idea in the bucket. Thanks for the comment!
A Vapor steam cleaner works amazing on these coils. Something like a Vapor Rino, even the smaller ones blast the dirt through the coils and out the other side. Anyway, works on every coil I have tried.
Excellent idea, thanks for sharing!
Great video buddy. Thanks
Thanks for the nice comment Jimmy.
@@RVTIPSANDTRAVELS your very welcome, I did subscribe 😁
Glad to have you on board.
On my to do list
Glad mine is done Barr.
Thank you sir for the video
Welcome!
Great content. Question tho: do you have a video on furnace maintence since winter is coming up?
Thanks
- Denver
Not yet but maybe something I do in the future.
Great video. My A/C is cooling down much faster.
Thanks 👍
You’re welcome!
Thanks!
thank you for the donation Tim, it is very much appreciated!
KoolRV and black tank from manual valves to automatic operation. Thank you
I just got a class B with an old Penguin 600 series AC. The previous owner let the foam cabin filters dry rot and half the foam is up in AC intake I bet. I tried to pick as much as I could out from below. Will I be able to get that stuff out by taking roof shroud off? Thanks for this video
I'd definitely start there and see what you come up with.
Hear a lot of people on FB talking about not trusting the factory water lines and/or the factory water line connections. They say that all RV'ers should replace their entire water system with PEX and with either PEX fittings or barbed connections. Thats above my pay grade and seems like a huge job to fix a problem that doesn't *yet* exist. Would you consider doing a video on this topic, or about what should be done to improve the strength of water line connections (eg radiator hose clamps), if anything should be done? Thnx
Let me do some research on this.
The problem is that so many of the water lines and wires are inaccessible once the RV is assembled, there's no easy way to gain access to them. I wouldn't worry about replacing/upgrading the water lines until you have an issue.
One thing that's super important that most RV'ers don't think about, is installing a pressure regulator to the fresh water input so you lessen the chances of blowing apart pipping connections due to high water pressure or aging pipes in your RV.
I agree, from researching and speaking with others, the failure is usually at the fittings. Pex is pretty strong, enough to handle a measly 50 psi, but the fittings are usually plastic which crack or lose the seal at the shark bite fitting.
If you have a class a do o still need to remove battery cables? No shore power no main on. Great video
However you're Class A is set up, just be sure the AC is not getting power. Since the thermostat uses 12 volt power, and you will be around those wires also, I just disconnect everything. Never hurts to be overly cautious.
I have a manual disconnect for the battery to the RV located in the storage bay. Will disconnecting that suffice in lieu of disconnecting the battery?
Great question Matthew, I hate those things. They don’t completely disconnect 12 V power, and it depends on the camper manufacture to what power is actually disconnected. I know people who actually remove those battery cut offs because they don’t truly cut power off to everything. I don’t like them, and I would recommend just pulling terminals off your battery just to be safe.
Looks like I have work to do. One question is do you clean both sides of the coil fins or just one side?
Usually just the outer side, but if it is dirty you can clean the other side.
Your coils look brand new.
5 years old actually, cleaning is key.
Hi Ross, what do you think? Can I use the air compressor to clean the dust inside the unit and from the coils? Thank you for your answear.
Should be fine BUT I would turn your air pressure down, those fins are thin and it won’t take a lot of pressure to bend them. Start low and work your way up with the pressure.
@@RVTIPSANDTRAVELS I thought the same thing. I wanted to have a second opinion of someone with more experience than I have.
Thank you Ross.
can you use the Nu-Calgon 4171-75 Evap Foam No Rinse Evaporator Coil Cleaner on both the evap and condensor coils? I noticed this same company has a cleaner for the condensor coil so I wasnt sure if it was safe to use on both??
Yes sir, it’s just twice the cost.
Hi Ross, I just finished cleaning my AC evaporator coil per your video. I have a GE AC and the Thermistor is attached to the end of a coil outside of the fins. I have had some freeze ups and wondered if this could be why. My AC doesn’t shut off when it freezes and rains inside. Any thoughts?
that is the purpose of the thermistor so that might be your problem... i would google search and see if you can find pics of people exposing your exact coil online and where its positioned. try placing the sensor where mine was, you might find this fixes the issue. did you buy this rv new?
Best question is that degreaser safe for your EPDM/TPO roof... Or the paint / decals on the side of your filon walls food for thought.
Why would it need to be? You’re spraying it on your coils. Not your roof or walls. Lol.
Great video. I got my Rv about a month ago and Im living in it full time at the moment. I'm a contract healthcare worker. I will be cleaning the air conditioner when it gets alittle cooler. My question is that my power in the park went off today for about 3 minutes and my air conditioning did not come back on it turned off completely. I was able to turn it back on at the thermostat. No breaker was tripped and I have a surge protector on my plug. I have 2 dogs traveling with me so when I got home an hour later it was 91 degrees. Do you have any Idea why it wouldn't come back on? I have the same 2019 grand design 2150 rb as you I believe.
If you lost power, the thermostat probably reset to the off position.
I hope you get a temp monitor for your RV...pets were killed last week from a power failure...
A mechanical thermostat would automatically come back on ,but digital ive learned in my years in HVAC is more accurate, I just changed mine to digital
I think I’ll blow my ac shroud with a lEf blowr from 20 ft away standing on a 2 ft step block, etc. to see if a bunch of angry wasps come flying out, while I’m not on roof.. might be eazier to escape. BTW,, gr8 viDO chEf, 4 rEL 👋
Hi Ross,
I have another issue with my Coleman Mach 10 Heat Pumps that might be related to condensate drain holes allowing the blower to suck unfiltered outside air including dust/dirt from under the AC unit that gets deposited onto the evaporator coil.
Do you know if there is a way to access and place some open cell foam between the roof and the base of the AC unit so that dirt can no longer contaminate the evaporator coil but so than condensate can still exit the AC unit?
Marc
Marc, can you send me some pics? Management@rvtipsandtravels.com
@@RVTIPSANDTRAVELS Planning to get on the roof this weekend weather permitting. I can see a lot of dust/dirt on the evap coil from the inside and it must be coming from someplace... I will take pictures from up above when I get up there.
It's too windy to clean the coils today... I have an exploded parts diagram of the Coleman Mach AC. it shows item 30 which is the evaporator coil condensate drain pan that has two holes that allign with corresponding holes in the metal base plate. Condensate drains through these holes BUT since the air pressure under the evaporator shroud is lower than the outside air, dirt can be sucked into the evaporator shroud. A Duck Bill check valve or even a piece OPEN cell foam would prevent this.
I have e-mailed Airxcel (owns Coleman) however they have not replied as of yet.
I have a JPG file of the Mach exploded parts diagram but have no idea how to upload it to this chat...
Marc
can you email me the parts diag?
How do I clean the coils from inside my old mh? The coils just above my ac filter. When I remove the filter I look upward and there is the coils. There is also so wiring in my way. Please advise if you can. Thank you.
Not sure, something I would have to see
fantastic video and I will be referring to it as we clean our units.....I really want to be the one to do it, but at a robust 287 pounds I fear I may be to portly to crawl around on my roof.....this may be a job better suited for 120 pound wife....lol. Although my camper does have the aluminum frame, perhaps I could risk it???? I called Flagstaff and they "recommend" folks on the roof are around 275 or less.
Glad it helped! Good luck I think you’ll be ok.
My popup camper a/c will cool for like 10 mins max, then the compressor cuts off for 6 mins or more. And never gets cool inside. My filters was real dirty. But when i take the filters off and the inside shroud cover. It will then cool the camper until it froze up. So do you think it's possible the coils need cleaned inside and on the top? We just bought the camper.
Jason, I would start with a good coil and filter cleaning, see what happens next.
Do you do both front and back of the coils?
you can, but most dont, they can be difficult to get to.
I am confused about one thing on the condenser coil. I cleaned the front like you said to and it looks great. But when I was wiping down the fan blade, I saw the back side of the condenser coil. Man it was VERY dirty with dirt & some kind of build up on it. You never mentioned cleaning the back side. Couldn't it be cleaned too! Please help me know what to do next.
you can clean both sides of the coils.
Does it matter where the sensor goes, as long as it goes in that general area? When I opened the cover it was lose
general area is fine
I just ordered Nu-Calgon 4171-75 Evap Foam No Rinse Evaporator Coil Cleaner, can I use this for both the RV condenser and evaporator ?
You sure can.
@@RVTIPSANDTRAVELS one more question, how long do I need to wait before starting the AC
I’d check the directions on the can first, but considering it evaporates quickly I’d say maybe an hour if you don’t rinse yourself. I’d definitely check the directions on the can though.
The air on my rv is cleaned every year but it still has the mildew smell when the unit kicks on. I also clean the filters regularly. Somewhere there is mildew but I cannot find it. Have shined a light into the ducting and it’s clean as can be in there. Any ideas?
something i would have to look at. did you clean in and around the fan and components on the roof?
Any tips for doing this if you don't have a walkable roof? We have an older travel trailer and I'm pretty sure you'd go right through the roof😅
unfortunately you might be looking into scaffolding, or a boom lift.
Try a 4x8 piece of plywood
Did I miss it, or did it not get covered to clean the drain line to keep it unclogged?
I didnt cover that in this video because I wanted to focus on coil and filter cleaning, as stated in the title.. This is not a complete AC troubleshooting video, however I will be releasing one in the spring of 2024.
What could be the cause of it not blowing cold? The compressor kicks in and everything but it doesnt seem to cool the air. Both coils have been cleaned thoroughly with coil cleaner... When i take off the air filter from inside the rv i can see the evaporator coil freeze up a little bit.... any suggestions?
could be a few things that would need to be tested.
How long does each can last? I have 3 AC’s. Thanks!
depends how much you use and how dirty your coils are.
Ross, since you’re part time, how often are you cleaning your air conditioner?
Hey Jim & Marie! He did mention the frequency interval toward the end of the video…based on the environment you guys are in. Just assisting. 👍😃
Coils 2X year, filter 3x year.
I just cleaned mine.
The direction of air flow into the condenser coil is from the inside out.
Mine was almost completely plugged up between the fan and the coil.
You have to remove the fan to get the Styrofoam cover off for cleaning.
I almost didn't see all the debris stuck to the coil. I always believed they pulled air in through the coil. I see just the opposite is true. This unit exhausts air outward.
Thanks for watching!
Yes, new in 2021. It’s frozen at least once each year. It works fine for the dealership so they can’t or won’t do anything . I feel like they should have some idea because I can’t be the only one to have this problem.
try putting the thermistor in the coil where mine was.
Thank you G, you saved me 700$ dollars
glad to help
Mine is totally different. The coils, with the thermistor, are only, barely accessable from the inside of my RV. Super hard to get to.
well that stinks.
That's the same AC as ours.
How much do you charge for this service
Where are you located?
@@RVTIPSANDTRAVELS I'm in Oregon. Just asking for reference to a client asking me to do this
How to get rid of bees nest under air unit
I wish I could help you with that one, but I definitely have no experience there.
Cool
What if you don't have a walk on roof?
you will need scaffolding.
Compressed air is essential to clean the coils as best as possible, along with blowing out all debris/dust. Hand cleaning will never get the coils as clean as they could be. Only thing I heard about compressed air was for cleaning filter. 🤔
Ed, if you run compressed air on these coils your going to have about 4 hours of work to straighten the fins. Soft water pressure or brushes, never compressed air. czcams.com/video/k7PSzi7NSyc/video.html
@@RVTIPSANDTRAVELS Yes, if you blow a 140psi of air, at close range, on the fins, you definitely can bend them, but you can bend them cleaning them manually too, if you’re not careful. It’s all about taking care. I’ve done this many times on cooling fins, and tons of dirt/debris comes out. Again, must use caution ⛔️ when doing this. I’m getting ready to do it right now. I have one unit rattling, I will guess there is something causing an imbalance issue, like something in the squirrel cage fan, and/or some bad insulator bushings. Whatever it is, I’ll fix it. Other unit doesn’t cool well, so compressor is failing or it’s low on Freon, which means it may have a leak. That unit may get replaced with a new 15k unit. I do have a question for you, though. I have an old duo-therm 5 button comfort control system, but have the micro-air touchscreen, can I adapt that to any new rooftop unit? Ty
Is your roof a walk on roof?
Yes
Thx for the video ...but I'm about 120 kg is is safe to stand on the roof like you did😳
I would check the specs in your specific owners manual Lewis. Thanks for watching.
@@RVTIPSANDTRAVELS I'll check but I'm not sure roof load capacity will be included
Year make model?
@@RVTIPSANDTRAVELS it's a la vista majorca.not sure the year it is 230 am here
Sorry Lewis, I can’t find any information on that.