Jump to content

Truma AC - Unbalanced Air Flow


Recommended Posts

I was out checking things in the trailer yesterday and had the AC running.  I noticed that airflow favors the curb side of the trailer.  If you are looking at the AC from the front of the trailer (you are facing aft) there are two distinct "sides" to the AC unit. You can vary the direction of flow on each side and front/back ratio.

When I hold my hand up to the AC, there is clearly more air coming out of the curb side that the street side. 

Is this a normal occurrence with the TRUMA?  I would think it would be much more balanced.

Brian

Brian and Brandelyne

Paris, TN

Tug: 2020 Ford F-250 Super Duty 7.3L V-8 (Gas), 10 Speed, FX4, Max Tow Package, 3.55 Rear Axle, Firestone Airbags, Warn 12k Winch

Tail # TN 23-1351, 2023 Oliver Elite II, Twin Bed, Delivery Date 3/08/2023

ALTNmed.jpg

States we have visited WITH our LE II

Link to comment
Share on other sites

38 minutes ago, Brian and Brandelyne said:

Is this a normal occurrence with the TRUMA?  I would think it would be much more balanced.

Have you tried adjusting the directional vanes, and the "front vs. rear" slide switch in the bottom middle of the unit?  That slide switch can divert air flow either all forward, all aft, or a combination of the two.  And, the rotating directional vanes can move air flow side to side.

  • Like 3

 

Hull #1291

Central Idaho

2022 Elite II

Tow Vehicle:  2019 Tundra Double Cab 4x4, 5.7L with tow package

ARCOIDNMOKORTNTXUTsm.jpg

Link to comment
Share on other sites

Yes, front back, side to side. Air is still stronger on one side. 
 

Thanks for the tip. 
 

BL

Brian and Brandelyne

Paris, TN

Tug: 2020 Ford F-250 Super Duty 7.3L V-8 (Gas), 10 Speed, FX4, Max Tow Package, 3.55 Rear Axle, Firestone Airbags, Warn 12k Winch

Tail # TN 23-1351, 2023 Oliver Elite II, Twin Bed, Delivery Date 3/08/2023

ALTNmed.jpg

States we have visited WITH our LE II

Link to comment
Share on other sites

@Brian and Brandelyne

I will be checking air flow in our new Truma after the install next week while at Oliver and will post up if I learn anything helpful.

Thanks for the info.

Patriot🇺🇸

  • Thanks 1
  • Like 1

0EED8E3B-D84E-4F0D-B52F-5E473FD3F2B4.jpeg.594e912d889377ce9a64a2f5c88ade83.jpeg

2020 OLEII - Hull #634 aka- “Beauty & the Beast” - 2021 F350 6.7 liter Diesel Lariat Ultimate Tremor

 

Link to comment
Share on other sites

41 minutes ago, Patriot said:

I will be checking Air Flow in our new Truma install next week while at Oliver and will post up if I learn anything helpful.

Thank you Patriot!

BL

  • Like 1

Brian and Brandelyne

Paris, TN

Tug: 2020 Ford F-250 Super Duty 7.3L V-8 (Gas), 10 Speed, FX4, Max Tow Package, 3.55 Rear Axle, Firestone Airbags, Warn 12k Winch

Tail # TN 23-1351, 2023 Oliver Elite II, Twin Bed, Delivery Date 3/08/2023

ALTNmed.jpg

States we have visited WITH our LE II

Link to comment
Share on other sites

On 5/3/2023 at 3:22 PM, Patriot said:

I will be checking air flow in our new Truma after the install next week while at Oliver and will post up if I learn anything helpful.

 

@Patriot Have you had a chance to check the airflow from your Truma AC?  Does it flow equally on both port and starboard sides?

Just want to ensure it is "ops normal" - probably is but want to be sure since I will be stopping by Hohenwald before the rally.

Thanks - 

Brian

Brian and Brandelyne

Paris, TN

Tug: 2020 Ford F-250 Super Duty 7.3L V-8 (Gas), 10 Speed, FX4, Max Tow Package, 3.55 Rear Axle, Firestone Airbags, Warn 12k Winch

Tail # TN 23-1351, 2023 Oliver Elite II, Twin Bed, Delivery Date 3/08/2023

ALTNmed.jpg

States we have visited WITH our LE II

Link to comment
Share on other sites

16 hours ago, Brian and Brandelyne said:

@Patriot Have you had a chance to check the airflow from your Truma AC?  Does it flow equally on both port and starboard sides?

Just want to ensure it is "ops normal" - probably is but want to be sure since I will be stopping by Hohenwald before the rally.

Thanks - 

Brian

@Brian and Brandelyne

As promised, I did check the air flow and the air flow is equal on both sides. 

Patriot🇺🇸

 

  • Thanks 1

0EED8E3B-D84E-4F0D-B52F-5E473FD3F2B4.jpeg.594e912d889377ce9a64a2f5c88ade83.jpeg

2020 OLEII - Hull #634 aka- “Beauty & the Beast” - 2021 F350 6.7 liter Diesel Lariat Ultimate Tremor

 

Link to comment
Share on other sites

7 hours ago, Patriot said:

the air flow is equal on both sides.

Thank you so much! I will put that on my list of things to review with OTT.

Safe travels!

Brian

  • Like 1

Brian and Brandelyne

Paris, TN

Tug: 2020 Ford F-250 Super Duty 7.3L V-8 (Gas), 10 Speed, FX4, Max Tow Package, 3.55 Rear Axle, Firestone Airbags, Warn 12k Winch

Tail # TN 23-1351, 2023 Oliver Elite II, Twin Bed, Delivery Date 3/08/2023

ALTNmed.jpg

States we have visited WITH our LE II

Link to comment
Share on other sites

  • 4 weeks later...
On 5/10/2023 at 10:16 AM, Brian and Brandelyne said:

Thank you so much! I will put that on my list of things to review with OTT.

Safe travels!

Brian

@Brian and Brandelyne
What did Oliver do to address the air flow problem? This info would be helpful to other Truma owners if they experience a similar issue?

Thanks!

Patriot🇺🇸

  • Like 1

0EED8E3B-D84E-4F0D-B52F-5E473FD3F2B4.jpeg.594e912d889377ce9a64a2f5c88ade83.jpeg

2020 OLEII - Hull #634 aka- “Beauty & the Beast” - 2021 F350 6.7 liter Diesel Lariat Ultimate Tremor

 

Link to comment
Share on other sites

They found that a piece of foam had come loose and was partially blocking the air flow and causing the noise I reported.  This happened during installation and was not noticed on pre-delivery check.  I spoke to Dave, the Truma rep that was at the rally, and he said it is not uncommon for those foam blocks to get dislodged during installation but there is a step to check them prior to installing the interior face plate/panel.

It's all good now, have not had any issues since.

I just look forward to the day Truma decides to update the CP Plus to include the de-humidification mode.  Not very "user friendly" to have to use the remote AND the CP Plus to get it to work.

Brian

  • Thanks 1
  • Like 2

Brian and Brandelyne

Paris, TN

Tug: 2020 Ford F-250 Super Duty 7.3L V-8 (Gas), 10 Speed, FX4, Max Tow Package, 3.55 Rear Axle, Firestone Airbags, Warn 12k Winch

Tail # TN 23-1351, 2023 Oliver Elite II, Twin Bed, Delivery Date 3/08/2023

ALTNmed.jpg

States we have visited WITH our LE II

Link to comment
Share on other sites

On 6/2/2023 at 1:00 PM, Brian and Brandelyne said:

I just look forward to the day Truma decides to update the CP Plus to include the de-humidification mode.  Not very "user friendly" to have to use the remote AND the CP Plus to get it to work.

Is this documented somewhere? I’ve only skimmed the manual, and didn’t think there was a dehumidify mode. Thanks!

-----
Steve - Northern Ohio, USA
Wandering around on occasion, always lost.
2021 Toyota Land Cruiser - 2023 Oliver Elite II Twin Hull #1360 “Curiosity”
Facebook - Instagram
 

Link to comment
Share on other sites

@Steve Morris Steve - not that I know of. I told the Truma rep, Dave, at the rally what I had found with respect to using the remote AND the CP Plus and he confirmed, you can only set the de-humidification mode using the remote.

I have since put in a ticket with Truma to potentially add this feature to the CP Plus. Some there were surprised to learn you could not do this but they confirmed it, called me back and said they would open a ticket. As I explained to them, we go to the added expense of getting all Truma components and so we could use them from ONE panel and find that all features are not available. 

I also told them their remote was NOT user friendly, had a poor display and eats batteries for breakfast. They did not disagree with my statements.

What I normally do, is set my a/c via the CP Plus then go to the remote, slide down the cover and hit the "Raindrop" button. You have to ensure that you see both the "Snowflake" and the "Raindrop" on the screen. You also have to be pointed directly at the A/C and watch the green light. If you have doubts that it "took" the command, there is a re-transmit button on the remote that will send the setting again (it looks like a wifi signal).

Hope this helps!

Cheers,

Brian

  • Thanks 1
  • Like 2

Brian and Brandelyne

Paris, TN

Tug: 2020 Ford F-250 Super Duty 7.3L V-8 (Gas), 10 Speed, FX4, Max Tow Package, 3.55 Rear Axle, Firestone Airbags, Warn 12k Winch

Tail # TN 23-1351, 2023 Oliver Elite II, Twin Bed, Delivery Date 3/08/2023

ALTNmed.jpg

States we have visited WITH our LE II

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...