A/C Loud in 2014 235BHS

DC 235BHS · 07-31-2015, 09:16 AM

Was wondering if anyone has had issues with loud A/C units? I have a dometic 13,500 btu ac unit on my 2014 apex 235bhs and it seems to be excessively loud, even on low. Are coleman units quieter then the dometic units? Also my unit is not duct, just blows out at the base of the unit so im sure that contributes. Any feed back would be appreciated, thank you in advance

jgourlie · 07-31-2015, 10:18 AM

I have always thought the a/c units to be quite loud....I guess I just get used to it

DC 235BHS · 07-31-2015, 11:04 AM

I am comparing to my pop up i had before this. Guess its just the nature of the beast.

wingedone · 07-31-2015, 07:56 PM

My previous trailer, a 2010 Keystone Passport was similar to your trailer in size and also had a direct flow A/C unit. It was bloody loud too.

The ducted unit, like in our current Brookstone is quieter, but not quiet, especially at high speed. None are.

The quietest ones were the trailers with a ducted cold air return and the A/C is isolated from the interior. Those are really nice, but usually only found on high end units (though it may be filtering down a bit in recent years).

UmptySquat · 07-31-2015, 10:18 PM

Similar in our 288BHS. Ours is ducted or dumpable like yours. It's loud with the dump closed but louder with it open! TV doesn't go loud enough to hear over it...

2013 Toyota Tundra 5.7L
2015 Apex 288BHS

hillmh · 08-01-2015, 03:30 PM

I have the exact same trailer and when it is on high fan you cant hold a conversation. Other than that love it.

aceinspp · 08-01-2015, 03:45 PM

I agree they are loud but not that unbearable. Some folks ears are more sensitive than other. Later RJD

mud yapster · 08-01-2015, 04:12 PM

My living room one 15,000 Dometic and I found the plastic blower wheel was worpped and causing a lot of vibration. New blower wheel was $8.97 and shipping was $8.98 LOL now my unit is very quiet. Also you might check to see if mud dobbers made a mud ball nest on the outside blade causing you vibration.

DC 235BHS · 08-02-2015, 08:24 AM

Thank you for the feed back am appreciative of it. Was looking at the new coleman mach 8 unit but i believe that would be a waste of money. Im sure if it was duct system it would be much quieter. Its not going to keep us from enjoying, we love the camper and it works out perfect for us. Thank you again.

Thurman · 08-07-2015, 11:49 AM

My previous TT had a ducted Dometic unit that only had one fan setting---high. When it was set to dump you couldn't hear yourself think when inside. Once the unit got down to a respectable temp I would close the damper and use the ducted outlets. Not as noisy then but still rather loud. My new unit has a ducted Dometic unit with a Dometic thermostat. This thermostat allows me to choose between "Lo", "Hi", and "Au" (automatic) fan settings. During the walk-through they showed me how to set the thermo to "FAN", then set the fan to either of those three settings. Once I had the fan set then set the thermo to "COOL". If I have just set the TT up I will set the fan on "Hi", then set the thermo to "COOL" and open damper at the grill at the A/C unit so the TT cools down faster. Once the TT is comfortable I go back and set the fan to "Lo" and close the damper at grill so the air comes out of the ducted vents and the noise is much better. IF you have the Dometic thermo these setting may work for you.

DC 235BHS · 08-07-2015, 02:02 PM

Listen to my frinds Brisk Air unit and it was very quiet. Our unit resonates and its even hard to sleep. I will be going to rv stores to listen to units, this one is out of here!

KDHfan · 08-07-2015, 07:02 PM

Quote:

Originally Posted by DC 235BHS

Thank you for the feed back am appreciative of it. Was looking at the new coleman mach 8 unit but i believe that would be a waste of money. Im sure if it was duct system it would be much quieter. Its not going to keep us from enjoying, we love the camper and it works out perfect for us. Thank you again.

We've had 3 campers now. The first came with a Dometic low profile... Loud and vibrated. We moved on to a Rockwood for two years... That one came with a Coleman Mach. It was so quiet (and it was a 15,000btu!!!). Now we have an Apex 288BHS and we're back to loud and vibrating Dometic. Honestly, even at just 1-year old, we're considering switching it out to a Coleman next season.

2015 Coachmen Apex 288BHS
2014 Toyota Tundra 5.7L CrewMax

Sent from my iPad using Forest River Forums

DC 235BHS · 08-07-2015, 09:22 PM

Thank you for your input, it is helpful. I am thinking about a mach 8 system. They advertise very quite. Any input on this unit?

KDHfan · 08-08-2015, 06:36 AM

Quote:

Originally Posted by DC 235BHS

Thank you for your input, it is helpful. I am thinking about a mach 8 system. They advertise very quite. Any input on this unit?

Sorry, I don't recall which Coleman Mach we had. Ours was a ducted unit. It was basically just a steady fan noise. We hardly noticed when the compressor cycled on or off. I'm not saying they're all like that, but that was our experience.

2015 Coachmen Apex 288BHS
2014 Toyota Tundra 5.7L CrewMax

Sent from my iPad using Forest River Forums

wingedone · 08-08-2015, 08:35 AM

If you make the change to another A/C, I would be interested in what your findings are.

KDHfan · 08-09-2015, 07:37 PM

Quote:

Originally Posted by wingedone

If you make the change to another A/C, I would be interested in what your findings are.

Me too!

2015 Coachmen Apex 288BHS
2014 Tundra 5.7 CrewMax

DC 235BHS · 08-11-2015, 12:29 PM

Im looking at a attwood air demand, i have read alote of good reviews on it and alote of them about how quiet the unit is. Just started a new thread asking for feedback on them. I really need to find on i can hear in person.

Cableman · 08-14-2015, 06:52 AM

Im gonna open mine up and see if theres a way to balance the fan just like the way you balance ceiling fans. Now that im using more i see what you guys mean!
Wonder if theres a variable speed thermostat we could get also.

DC 235BHS · 08-14-2015, 07:42 AM

I ordered a atwood 15k btu ac/heat pump. My boss is buying my dometic from me for $300 so im out $380 on this venture. Let me know if you can balance the blower and if it repairs the problem.

mud yapster · 08-14-2015, 08:18 AM

Quote:

Originally Posted by DC 235BHS

Was wondering if anyone has had issues with loud A/C units? I have a dometic 13,500 btu ac unit on my 2014 apex 235bhs and it seems to be excessively loud, even on low. Are coleman units quieter then the dometic units? Also my unit is not duct, just blows out at the base of the unit so im sure that contributes. Any feed back would be appreciated, thank you in advance

FYI for everyone
My living room a/c was loud and there weren't any mud dobbers mud on the blades throwing it out of balance. I found my inside plastic blower wheel wobbling and out of round. I ordered a new plastic blower wheel cost me $8.98 plus shipping.
I replaced the blower wheel and the thing is quieter than the bedroom 13.5k unit now. I did find when you tighten the shaft clamp on the plastic blower wheel to not over tighten it or it will distort the wheel and cause it to wobble. So just snug it up just enough as to not distort the wheel when it spins. Mine is All quiet now.
I'm sure they just tighten the crap out of those plastic wheels at the factory and when they do it causes the wheel to distort and wobble and that's where all the vibration is from.
hope that helps you and we can even watch and hear the TV just fine now with the A/C on high speed.

You may also like: