I just wanted to take a min to thank you for accurately giving advice on ac. I work on ac’s and most people think if it’s running all day it’s overworking the unit (not true) and like always you were spot on. Most videos i watch people have no idea how ac’s work and they try to describe it and it dosent turn out well. I will add one thing if you like it set to 72 then set it for 72. Putting it at 60 dosent make it cool better or faster just makes it run longer. With ac’s there either on or off set it where you want it and let it work.
I wonder what you or Todd think about those of us that don’t need to run our AC often because of our location. Do you recommend occasional starting the AC up to grease the bearings and whatnot or is that not necessary? Thanks in advance for your input!
What if the AC is an inverter? That isn't an on or off compressor. It gradually adjusts while always on. Well that is what I have learned about them. 72 is still way too warm for me. 68 is my set point for room temperature (and make that humidity stay below 52%). But setting an AC at 72 can often bring about a 68° F result. No need to overwork the AC if you don't have to.
Thanks man I live in AZ and plan on getting an RV soon to live in here so have been curious about the ac in the summer for my dog and cat while I’m at work.
Love this! We full-time (going on 3 years now!) and have a soft-start on our A/C and it was the best thing. Gotta save that capacitor especially when we're in the South in winter and it's still 80 degrees out all day long. Love you NRVTA!
Installing one of the duct streamliners, or making one, can improve airflow 40%. Cleaning ducts and filters is also essential. Shutting off unused areas can give better cooling where you are. Desert dwellers use magnets to put reflective insulating tarps on the sunny side of their rigs. Park north/south to minimize mid-day solar exposure. Awnings, especially on the sunny side, can help a lot. Clean your coils inside and outside. A little dust on them goes a long way to slowing heat transfer, overworking the unit, and causing icing.
@@lawrencecigary2134 The cover on the roof. Many of them are black and just absorb heat unnecessarily, so you paint it white and it will reflect light and heat better.
I second this. My FR ducts are rectangular 1/2” low density (styrofoam) with 90° corners. Extremely inefficient for air flow. I won’t even get into the poor foil tape job and air leaking into the ceiling…😒
I wish the RV Aircon would kick the condensate up from the evaporator over the condenser to cool it and keep the water from running off the roof. My roof top works but when it goes out I'm buying a mini split.
It really depends on the damage. if it's outside trim you can usually track down the part and order a replacement. other items may need a Certified RV Tech to repair.
Why am I getting wet droplets hanging from ceiling vents? In VA, humid at 89° in July. AC on high at 71-75° and we get the droplets. I run a dehumidifier inside non stop. Bath vent open, blowing out with upgraded\sealed fan. No other vents\windows\doors open. Thanks for the great videos !
Definitely add a duct insert (i use rv airflow systems) if you use your ac a lot. Makes it way more efficient for long term usage. My ac actually is too cold at times and I’m inland socal where high 90s is standard in the summar
You can actually do harm by having an oversized unit as well. It will not cycle properly and thus humidity will be more likely to build up since the larger unit will not work as hard to cool the area. It will shut off a lot quicker. I learned this from my HVAC guy. Lol.
Maybe you can advise for a window unit AC for a room in a house? I want something I can run when the outdoor temperature is below 60°F at night. Im not opening any windows. It's too humid outdoors, and I hate it. I hate every day until October. Summer is hot, humid, and loaded with bugs. So, this room stays warm without AC running. I have a Danby brand air conditioner that so far has been amazing. It matches the Midea U Shape Inverter AC. Nothing in the manual addresses my question. I had been warned forever as a kid from my dad that coils on a central AC can potentially frost freeze if the AC is run below 60°F. Well, there has to be an air conditioner I can capably run to cool an indoor room even if outside its in the 50s or even the 40s? This room will maintain 64 with a window open if outside temperature is 32 (yes, 32) before I put the window AC in (that is back in Winter, not now). Over Winter I left that window open all the time. This house has central AC. Ductwork was recently checked. Now that its 80 outside, this room just stays warmer than rest of house so, I added that window AC. With the window AC, this room is 68, yesss. There must be an AC that can run cool like I want? I set this Danby inverter AC at 70 and I get 68 as result 🙂 but outdoors its 78 to 82 so technically that's probably the outdoor ambient temperature this AC is perfectly designed for. But, how about if outdoor temperature drops to say, 55 at night, and I wish to keep running the AC set to 70 all night (which awesomely maintains the room at 68), will that freeze the compressor or damage the unit? Is there an AC I can get that runs fine and dandy if outside it's below 60? Ive heard of something called a "low ambient kit" whatever that does? I basically want this room 60 to 68 with humidity at or below 50% from now to October.
Thanks for the tip. we have 3 a/c's we the bedroom and main on high @ 75 then garage 76 on auto. our son hates the constant cold air on him. :) I service our A/C every spring and fall. Spray paint for the covers should work eh.
Soft starts generally help your AC's. Check out our videos on Soft starts. ua-cam.com/video/3oqg4_-8bxs/v-deo.html MicroAir also has a double warranty. ua-cam.com/video/92Fb9NcAh_M/v-deo.html
@@NationalRVTrainingAcademy cool and Tks. It’s not that we need our AC much when we are in Colorado, but I’d like the option and to use the Honda generator we have. I just wanted to make sure it wouldn’t damage it now that we are out of warranty. Everything else runs off of our 800 watt panel array and the two lithium storage batteries. Many thanks. Love your channel.
When we need AC, we allways have fan on high. The noise level is basically no different from high to low. We don't have ducted AC. Since low fan can contribute to icing issues, why do they even have a low fan speed ?
Question: Since we don't want to have issues with it freezing, you said "run the fan on high". Would choosing "Auto" for the fan function be ok or would it never run the fan on high in auto function?
What's your opinion on running the a/c fan on high 24/7, and just letting the compressor cycle on and off as needed? We have 3 a/c units, and the one in the bedroom seems to run a lot no matter what temperature I keep it set at, and we've had problems with it freezing up. I keep the fan on high to prevent this, but when I do the fan runs 24/7 (it doesn't cycle on and off with the compressor). We live in our RV full-time half of the year, so this isn't just an occasional thing, and I wasn't sure if that would negatively affect the lifespan of the a/c unit. (Note: all a/c units have white shrouds already).
I have a coleman mach in a 2021 travel trailer, small 25ft. Ac blows good cold air but should I run on auto or fan? I feel like when on fan it's gets humid if the compressor is not running , I've tried running on auto today and seems to work good. Thx
Great video sir.. question - I have 2006 NUWA ducted AC - 15,000 Mack Coleman.. full timers. In Arkansas high humidity.. do I need to run fan speed on high all day and all night or just at night ? .. thank u
I'm new to RV's and have heard different opinions for when using reflectix or other reflective insulation in my windows. It seemed to help keep the RV cooler, but will it or can it cause damage to the windows or window seals?
I have a unique issue that has me totally stumped. My AC works like a beast till about 4-5am. I’ve gotten up in the middle of the morning thinking my condenser was frozen over but it’s not. It can be a 100 degrees outside during the day and my rv is an ice box… but something is going on right before the sun comes up. The unit is only 2 yrs old, it’s a furion. Anyone else dealing with something like this. I keep the fan speed at high.
They can prolong the life of the AC units. You can watch our other Tech tip where we talk about Soft starts. ua-cam.com/video/3oqg4_-8bxs/v-deo.html Micro Air is so confident in their product that they have their own warranty ua-cam.com/video/92Fb9NcAh_M/v-deo.html
Do you think there is my difference running a dehumidifier full time or the AC when it comes to cost. I have a medium sized home dehumidifier running now.
Running the dehumidifier really just needs to be for humidity control. Unless you live in Florida. The goal is to ease the coils in their cooling process as they don't have to strip as much moisture out of the air to cool it down. Thanks for sharing.
Hey Todd, there was post that claimed running your A/C compressor all the time (CONTINUOUSLY) was not a good thing to do?? Why was that post DELETED? If you don’t agree with that guys response, why wouldn’t you just explain why instead of deleting a reply that was the opposite of yours???
The response was not appropriate to discourse. Disagreements and questions are welcome if done without twisting of words. You cannot run the compressor continuously unless you override the circuit board. The takeaway is for the non tech to understand they can set their desired temp in the thermostat and not worry about damaging the AC. The high temp limit switch, freeze stat and logic in the thermostat will cycle the compressor as needed. The understanding is run your ac as it’s intended.
@@NationalRVTrainingAcademy Todd clearly said “the fan motor and compressor are continuous duty, so yes, you can run them all the time” So NRVTA is standing by this statement?? Seems you folks are the ones that appear to be “twisting words” “THE ONLY REAL MISTAKE IS THE ONE FROM WHICH WE LEARN NOTHING” (Henry Ford) Have a nice day.
is there a way to get certified as an RV inspector online? Or do you have to go to the campus in Texas? From what Ive been able to find, you have to go to the campus physically.
I totally agree. The problem we have now with people installing miini-splits on RVs is the mini-splits arent designed strong enough to handle the bumps in the road. But in time.....
Thank you for reaching out to us. To provide you with more information, we kindly ask you to call and speak with one of our Student Advisors. They are equipped to assist you promptly and address any questions you may have. Please reach out to us at (903) 386-0444.
I just wanted to take a min to thank you for accurately giving advice on ac. I work on ac’s and most people think if it’s running all day it’s overworking the unit (not true) and like always you were spot on. Most videos i watch people have no idea how ac’s work and they try to describe it and it dosent turn out well. I will add one thing if you like it set to 72 then set it for 72. Putting it at 60 dosent make it cool better or faster just makes it run longer. With ac’s there either on or off set it where you want it and let it work.
I wonder what you or Todd think about those of us that don’t need to run our AC often because of our location. Do you recommend occasional starting the AC up to grease the bearings and whatnot or is that not necessary? Thanks in advance for your input!
Can I paint the black shroud white?
What if the AC is an inverter? That isn't an on or off compressor. It gradually adjusts while always on. Well that is what I have learned about them. 72 is still way too warm for me. 68 is my set point for room temperature (and make that humidity stay below 52%). But setting an AC at 72 can often bring about a 68° F result. No need to overwork the AC if you don't have to.
Full time RVer, I run mine 24/7 during the hot season here in Arizona. After cleaning my coils, I've had zero problems! Thank you Todd!
Thanks for sharing
Thanks man I live in AZ and plan on getting an RV soon to live in here so have been curious about the ac in the summer for my dog and cat while I’m at work.
I should have found this channel 6 months ago. New subscriber.
Love this! We full-time (going on 3 years now!) and have a soft-start on our A/C and it was the best thing. Gotta save that capacitor especially when we're in the South in winter and it's still 80 degrees out all day long. Love you NRVTA!
Speaking of A/C units, could you do a video on basic preventative maintenance of them? Places to clean, things to check, etc.
we have. ua-cam.com/video/N0fru06fzPY/v-deo.html
@@NationalRVTrainingAcademy
Installing one of the duct streamliners, or making one, can improve airflow 40%. Cleaning ducts and filters is also essential. Shutting off unused areas can give better cooling where you are. Desert dwellers use magnets to put reflective insulating tarps on the sunny side of their rigs. Park north/south to minimize mid-day solar exposure. Awnings, especially on the sunny side, can help a lot. Clean your coils inside and outside. A little dust on them goes a long way to slowing heat transfer, overworking the unit, and causing icing.
Great tips. Thanks for sharing.
You can also remove the ac cover and spray paint it white (for 5 bucks). I did that and it made a great difference.
great budget tip!! Thanks.
Lol. I was going to do that this weekend. Glad it worked.
Whatcha mean spray paint IT white? What is IT and what is the reasoning behind that?😳
@@lawrencecigary2134 The cover on the roof. Many of them are black and just absorb heat unnecessarily, so you paint it white and it will reflect light and heat better.
@@Florida_Man_Robb Thanks man. Makes sense now.
What he’s saying also applies to your fridge cooling fans. Add a fin fan to keep the fins from freezing
Absolutely. thanks for sharing.
If your fins are freezing you have a lot bigger problem
Great video buddy!
Thanks JD.
Thanks for all your help and advice.
Can you do a video on improving airflow? A/c and furnace ducts?
Sounds good. We will get on it
I second this. My FR ducts are rectangular 1/2” low density (styrofoam) with 90° corners. Extremely inefficient for air flow. I won’t even get into the poor foil tape job and air leaking into the ceiling…😒
Look at “RV AIRFLOW SYSTEMS”. It’s an in-line piece that increases flow.
Awesome explanation! I've always wondered about this because it is very hot in the South this summer. Have a fantastic day!
Thanks! You too!
Thank you Todd, love your videos!
Glad you like them!
I wish the RV Aircon would kick the condensate up from the evaporator over the condenser to cool it and keep the water from running off the roof. My roof top works but when it goes out I'm buying a mini split.
So a couple models make a pump to pump the evap water down a tube so it doesn’t fall on the sides. Just need to redirect it to the condenser coils.
@@NationalRVTrainingAcademy nice to know 👍
Thanks for the tips
No problem!
Can you do a video on how to repair possible damages from a tire blow out?
Buy a new tire... had to be said...
It really depends on the damage. if it's outside trim you can usually track down the part and order a replacement. other items may need a Certified RV Tech to repair.
Nice to see the airstream
She's a beauty.
Why am I getting wet droplets hanging from ceiling vents? In VA, humid at 89° in July. AC on high at 71-75° and we get the droplets. I run a dehumidifier inside non stop. Bath vent open, blowing out with upgraded\sealed fan. No other vents\windows\doors open. Thanks for the great videos !
I would say running your bath vent is pulling in the outside air/moisture from where ever. just my 2 cent. Enjoy...
Are these the vents on your AC or your manual vents?
Clean the coils annually also, as preventative maintenance.
absolutely.
Definitely add a duct insert (i use rv airflow systems) if you use your ac a lot. Makes it way more efficient for long term usage. My ac actually is too cold at times and I’m inland socal where high 90s is standard in the summar
Optimizing air flow makes a huge difference.
Great info. If the unit is literally running all the time you might want to consider a larger unit or more insulation.
You can actually do harm by having an oversized unit as well. It will not cycle properly and thus humidity will be more likely to build up since the larger unit will not work as hard to cool the area. It will shut off a lot quicker. I learned this from my HVAC guy. Lol.
Pete is correct. You want to Keep your AC's at the correct size rating. There are lots of ways to increase the efficiency of your current unit.
Thank you!
Maybe you can advise for a window unit AC for a room in a house? I want something I can run when the outdoor temperature is below 60°F at night. Im not opening any windows. It's too humid outdoors, and I hate it. I hate every day until October. Summer is hot, humid, and loaded with bugs. So, this room stays warm without AC running. I have a Danby brand air conditioner that so far has been amazing. It matches the Midea U Shape Inverter AC. Nothing in the manual addresses my question. I had been warned forever as a kid from my dad that coils on a central AC can potentially frost freeze if the AC is run below 60°F. Well, there has to be an air conditioner I can capably run to cool an indoor room even if outside its in the 50s or even the 40s? This room will maintain 64 with a window open if outside temperature is 32 (yes, 32) before I put the window AC in (that is back in Winter, not now). Over Winter I left that window open all the time. This house has central AC. Ductwork was recently checked. Now that its 80 outside, this room just stays warmer than rest of house so, I added that window AC. With the window AC, this room is 68, yesss.
There must be an AC that can run cool like I want? I set this Danby inverter AC at 70 and I get 68 as result 🙂 but outdoors its 78 to 82 so technically that's probably the outdoor ambient temperature this AC is perfectly designed for. But, how about if outdoor temperature drops to say, 55 at night, and I wish to keep running the AC set to 70 all night (which awesomely maintains the room at 68), will that freeze the compressor or damage the unit?
Is there an AC I can get that runs fine and dandy if outside it's below 60?
Ive heard of something called a "low ambient kit" whatever that does?
I basically want this room 60 to 68 with humidity at or below 50% from now to October.
Thanks for the tip. we have 3 a/c's we the bedroom and main on high @ 75 then garage 76 on auto. our son hates the constant cold air on him. :) I service our A/C every spring and fall. Spray paint for the covers should work eh.
It's worth a try.
Thank you!
You're welcome!
Now we need to address the noise from the fan running on high and continuous..
Do you have any experience on soft starts? Does this help or hurt the longevity of the AC unit? Many tks. Great videos.
Soft starts generally help your AC's. Check out our videos on Soft starts. ua-cam.com/video/3oqg4_-8bxs/v-deo.html
MicroAir also has a double warranty. ua-cam.com/video/92Fb9NcAh_M/v-deo.html
@@NationalRVTrainingAcademy cool and Tks. It’s not that we need our AC much when we are in Colorado, but I’d like the option and to use the Honda generator we have. I just wanted to make sure it wouldn’t damage it now that we are out of warranty. Everything else runs off of our 800 watt panel array and the two lithium storage batteries. Many thanks. Love your channel.
Does it matter what AC unit I buy? When my travel trailer is a 30 amp.
Thank you Sir
Most welcome
Thanks brother..
Any time
When we need AC, we allways have fan on high. The noise level is basically no different from high to low. We don't have ducted AC.
Since low fan can contribute to icing issues, why do they even have a low fan speed ?
That's the age old question. There's really no purpose for it. Maybe if you run it just on fan. but that's just blowing air.
Very good info, I'm planning on full-time RV living when I retire 4-6 years depending on the economy. I need all the info I can.
Glad it was helpful!
Get a cover built over it so it doesn't leak best thing you can do
THANK YOU!!!!!
Question: Since we don't want to have issues with it freezing, you said "run the fan on high". Would choosing "Auto" for the fan function be ok or would it never run the fan on high in auto function?
Best practice, when you are running your air conditioner, leave it in High. Air flow is key.
Should you paint your dark color shrouds? I have a white roof.
That could help.
What's your opinion on running the a/c fan on high 24/7, and just letting the compressor cycle on and off as needed? We have 3 a/c units, and the one in the bedroom seems to run a lot no matter what temperature I keep it set at, and we've had problems with it freezing up. I keep the fan on high to prevent this, but when I do the fan runs 24/7 (it doesn't cycle on and off with the compressor). We live in our RV full-time half of the year, so this isn't just an occasional thing, and I wasn't sure if that would negatively affect the lifespan of the a/c unit. (Note: all a/c units have white shrouds already).
How do I know if I need a ducted or non? Ducted.
Nice job god bless
Thank you. Same to you
Would it be advisable to have soft start installed to help with the hard start.
absolutely. That lessens the initial Amp Draw which helps your power systems.
Where can I get one of these white AC covers I have a black domestic Evolution GR8 video
I have a coleman mach in a 2021 travel trailer, small 25ft. Ac blows good cold air but should I run on auto or fan? I feel like when on fan it's gets humid if the compressor is not running , I've tried running on auto today and seems to work good. Thx
You need to run it on AC High. Or Auto High. When you run it on Fan you aren't using the AC, just the fan to blow air around.
Great video sir.. question - I have 2006 NUWA ducted AC - 15,000 Mack Coleman.. full timers. In Arkansas high humidity.. do I need to run fan speed on high all day and all night or just at night ? .. thank u
Auto is fine. It when people take it off auto and put it on low where the potential problem exist
The Dometic RTX2000 runs on 12 volts, and is highly efficient.
That's a great option for smaller RV's. Very common in Van builds.
I'm new to RV's and have heard different opinions for when using reflectix or other reflective insulation in my windows. It seemed to help keep the RV cooler, but will it or can it cause damage to the windows or window seals?
Using command strips won't damage the windows or surfaces you decide to put reflectix on.
@@NationalRVTrainingAcademy thank you for the reply
Hell ya you can. Take the cover off the roof top. So it won't over heat
thanks for sharing.
Cool!
I have a unique issue that has me totally stumped. My AC works like a beast till about 4-5am. I’ve gotten up in the middle of the morning thinking my condenser was frozen over but it’s not. It can be a 100 degrees outside during the day and my rv is an ice box… but something is going on right before the sun comes up. The unit is only 2 yrs old, it’s a furion. Anyone else dealing with something like this. I keep the fan speed at high.
High fan won’t cool so i auto speed always, soft start so not jolt of amp non stop
Do soft starter units help or hurt the AC units??? Are they worth $325/ea x 3 to put them on???
They can prolong the life of the AC units. You can watch our other Tech tip where we talk about Soft starts. ua-cam.com/video/3oqg4_-8bxs/v-deo.html
Micro Air is so confident in their product that they have their own warranty ua-cam.com/video/92Fb9NcAh_M/v-deo.html
Are you saying to spray water while the a/c is on or just to clean it?
While running.
just the condensor coils on the outside. Not the evaporator Coils on the inside. Unless you are cleaning the coils.
So it sounds like using the auto setting for the fan is not a good idea??? Just let the fan run all the time?
Auto is usually fine.
How do I keep the compressor running? Just set the t-stat at a low temperature?
Run the AC at your desired temp. That’s the takeaway
Do you think there is my difference running a dehumidifier full time or the AC when it comes to cost. I have a medium sized home dehumidifier running now.
Running the dehumidifier really just needs to be for humidity control. Unless you live in Florida. The goal is to ease the coils in their cooling process as they don't have to strip as much moisture out of the air to cool it down. Thanks for sharing.
Yes , I am in Florida
I don't see a issue with running it 24/7
Hey Todd, there was post that claimed running your A/C compressor all the time (CONTINUOUSLY) was not a good thing to do?? Why was that post DELETED? If you don’t agree with that guys response, why wouldn’t you just explain why instead of deleting a reply that was the opposite of yours???
The response was not appropriate to discourse. Disagreements and questions are welcome if done without twisting of words.
You cannot run the compressor continuously unless you override the circuit board. The takeaway is for the non tech to understand they can set their desired temp in the thermostat and not worry about damaging the AC.
The high temp limit switch, freeze stat and logic in the thermostat will cycle the compressor as needed.
The understanding is run your ac as it’s intended.
@@NationalRVTrainingAcademy Todd clearly said “the fan motor and compressor are continuous duty, so yes, you can run them all the time” So NRVTA is standing by this statement?? Seems you folks are the ones that appear to be “twisting words” “THE ONLY REAL MISTAKE IS THE ONE FROM WHICH WE LEARN NOTHING” (Henry Ford) Have a nice day.
is there a way to get certified as an RV inspector online? Or do you have to go to the campus in Texas? From what Ive been able to find, you have to go to the campus physically.
Our Inspector program is only in person. There's so much that needs to be explained and learned in person. Howard is an amazing inspector.
Tell the AC manufacturers to make a DC inverter RV AC already!!! Much quieter and way easier to start.
I totally agree. The problem we have now with people installing miini-splits on RVs is the mini-splits arent designed strong enough to handle the bumps in the road. But in time.....
How much does a RV inspector make a year ?
Thank you for reaching out to us. To provide you with more information, we kindly ask you to call and speak with one of our Student Advisors. They are equipped to assist you promptly and address any questions you may have. Please reach out to us at (903) 386-0444.
Soft start.
so i put mine in Auto at about 68 to 70 degies i live in Maine is auto ok or should i just leave it in the running all the time
How often does it kick on and off? That is when you have the most wear (high amperage to turn on)
Auto is usually fine. make sure it's on auto with fan on high.
Hey Todd, they need to pay you more so you can afford sleeves 😁
We're on a budget here...
Common sense folks. Common sense.
These aren't very difficult components. you are spot on. Thanks.