2020 grey wolf TH poor AC

Hond099

First thing I'd do is in the morning set the thermostat at 70-72. If you set it a 79, by the time it comes on trailer walls, interior air etc. is already hot and trying to bring it down is very hard If you can start the morning at 70 or so the AC will start working against a low temp and be able to hold it longer before it starts to rise.

Now where we are it usually cools off to at least low 70's at night, often the mid 60's. so the trailer outside and inside is cooled down by morning. And then the sun has to heat everything back up, helps on the AC load. if we were where it only got to the 80's at night, I suspect we'd have a hard time getting the trailer to the low 70's by morning and it would heat up quick.

My take is that many of the larger trailers are shipped with inadequate AC units. 20ft one AC fine, 30 ft, one AC unit, southern temps day and night..... another story.

Many RVs simply do not have enough A/C.. But when you say you checked topside. Did you remove the covers and look at the FAN side of the evaporator coils.

Most A/Cs blow air through the condenser so any "Crud" that builds up on the condenser is hidden where you can't see it.

Colemans Suck. so you can easily see that they need cleaning. and it's easier to do.

wa8yxm wrote:
Many RVs simply do not have enough A/C.. But when you say you checked topside. Did you remove the covers and look at the FAN side of the evaporator coils.

Most A/Cs blow air through the condenser so any "Crud" that builds up on the condenser is hidden where you can't see it.

Colemans Suck. so you can easily see that they need cleaning. and it's easier to do.

It was clean, fins good , temp sensor good.

Hondo99 wrote:

wa8yxm wrote:
Many RVs simply do not have enough A/C.. But when you say you checked topside. Did you remove the covers and look at the FAN side of the evaporator coils.

Most A/Cs blow air through the condenser so any "Crud" that builds up on the condenser is hidden where you can't see it.

Colemans Suck. so you can easily see that they need cleaning. and it's easier to do.

It was clean, fins good , temp sensor good.

Yes! Undersized and bad insulation!
It is 2023 already should be using spray foam insulation! It been around 10 plus years!
Won’t buy another Forest River Grey Wolf!

wa8yxm wrote:
Many RVs simply do not have enough A/C.. But when you say you checked topside. Did you remove the covers and look at the FAN side of the evaporator coils.

Most A/Cs blow air through the condenser so any "Crud" that builds up on the condenser is hidden where you can't see it.

Colemans Suck. so you can easily see that they need cleaning. and it's easier to do.

I’ve already tried! Believe me ! It’s getting traded in over Labor Day weekend, if sales are good ??

Hopefully Dometic and Forest River read this stuff!

The plain simple fact is, 1 AC will NOT cool a RV over 26 foot, especially if you have slide rooms. Does NOT make a difference of BTU of AC unit. Are you ON 30 amp and only have a 30 amp RV. or do you have 50 amp service using a 30 amp Shore CG receptacle? Don't blame the AC or FR, Blame the dealer that ordered this size unit without 2 AC units. You may have AC operation problems or installation/ductwork problems, but does not matter as I stated, you have an inadequate AC system. Doug

dougrainer wrote:
The plain simple fact is, 1 AC will NOT cool a RV over 26 foot, especially if you have slide rooms. Does NOT make a difference of BTU of AC unit. Are you ON 30 amp and only have a 30 amp RV. or do you have 50 amp service using a 30 amp Shore CG receptacle? Don't blame the AC or FR, Blame the dealer that ordered this size unit without 2 AC units. You may have AC operation problems or installation/ductwork problems, but does not matter as I stated, you have an inadequate AC system. Doug

yup I agree completely. shortly after we bought our Outback 295RE (32 ft double slide) Keystone added provisions for a second AC unit and made 50A service optional. Note I said "after".

But ours is a single unit Coleman Mach III. With all the mod's I've done it is barely adequate for us in our climate. A climate that usually sees night time temps in the high 50's, low 60's, even in august and usually stays below 90 in the day. for those conditions it can keep the trailer at a set temp but runs most of the time. If we hit days with temps in the high 90's and high night temps, it won't hold temp, and will rise in the afternoon. And on these hot days it's usually noon before it's above 85. A few years ago we were camping when day highs were 105, night lows in the high 70's and by 10am was pushing 90. It was miserable, AC ran constantly and inside temps peaked in the mid 80's and even by 10pm was uncomfortably hot.

As shipped without my mods to clean up and insulate the ducting, add more ducts, improve airflow even temps pushing the mid 80's would cause the AC to struggle. And even improving airflow has a limited affect. more air movement but the same cooling BTU so can help cool down rate some, but not ultimate heat extraction once airflow reaches a certain point.

All those things mentioned plus the Florida heat wave are obviously not helping.
But none of that matters because you know something is wrong with the AC unit if it’s pumping out 70 deg air.

Hondo99 wrote:

wa8yxm wrote:
Many RVs simply do not have enough A/C.. But when you say you checked topside. Did you remove the covers and look at the FAN side of the evaporator coils.

Most A/Cs blow air through the condenser so any "Crud" that builds up on the condenser is hidden where you can't see it.

Colemans Suck. so you can easily see that they need cleaning. and it's easier to do.

I’ve already tried! Believe me ! It’s getting traded in over Labor Day weekend, if sales are good ??

I think you're going to find that all the trailers are pretty much the same. They all use the same insulation on 2 inch thick wall. And they all use the same 13,500 or 15,000 BTU AC units. So if you are going to go trailer shopping be aware that a different trailer will probably have the same outcome and you will again be hot and disappointed and out a bunch of money..

If you look at something with more insulation you might like the Northwood Mfg Desert Fox. It may be better insulated but still has only one AC unit so it's going to struggle in the heat. And being a toy hauler it's going to dump all the cold air out if you open that rear door for any reason.

You would probably be better off financially and cooling wise looking into adding a second AC unit to your current trailer.