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Old 09-21-2015, 12:52 PM   #1
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2011 Bay Star air conditioning

Just wondering if anyone else is experiencing difficulty with the single air conditioner on their 2901 Bay Star.

The air flow on ours is almost impossible to detect without putting your hand right up to one of the ceiling vents. Changing the fan speed from low to high to automatic makes no audible or air flow difference.

This a/c is definitely not capable of cooling the motorhome in temperatures beyond the mid 70's.

Our authorized Newmar dealer says it is working as expected.

BTW, we've had two other motorhomes with single a/c units and both were very effective in keeping the unit cool, even in high (80's and 90's) temperatures.
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Old 09-22-2015, 08:35 AM   #2
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I have 2 AC / Heat Pumps in our Bay Star and I can feel the air coming out of the vents from 4 feet away. The single AC unit should be able to cool your coach until the outside temps hit in the 90's. I can't say what will happen after that. Maybe try another dealer.
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Old 09-22-2015, 06:27 PM   #3
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Quote:
Originally Posted by BPoland View Post
I have 2 AC / Heat Pumps in our Bay Star and I can feel the air coming out of the vents from 4 feet away. The single AC unit should be able to cool your coach until the outside temps hit in the 90's. I can't say what will happen after that. Maybe try another dealer.
We had a different MH with one a/c and it did the same thing. Took it to the dealer and he said it worked fine also. It had had a rectangular grill in the middle and my son in law took 4 bolts from the ceiling out and turned
it 180 and put the 4 bolts back in and it worked great after that. Ours now is a Newmar Baystar 2903 and it has 2 a/c's and is set up different. Do you have allot of registers for the air to come out or one big one? They might have something in the ducting. Is it a/c only?
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Old 09-22-2015, 06:36 PM   #4
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Originally Posted by roadtraveler View Post
We had a different MH with one a/c and it did the same thing. Took it to the dealer and he said it worked fine also. It had had a rectangular grill in the middle and my son in law took 4 bolts from the ceiling out and turned
it 180 and put the 4 bolts back in and it worked great after that. Ours now is a Newmar Baystar 2903 and it has 2 a/c's and is set up different. Do you have allot of registers for the air to come out or one big one? They might have something in the ducting. Is it a/c only?
There are five circular registers in the ceiling and five filtered air return ducts. They are used for the a/c only. The furnace has floor ducts and works perfectly since it is not connected in any way with the a/c.
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Old 09-23-2015, 09:04 AM   #5
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Quote:
Originally Posted by janandmike View Post
Just wondering if anyone else is experiencing difficulty with the single air conditioner on their 2901 Bay Star.

The air flow on ours is almost impossible to detect without putting your hand right up to one of the ceiling vents. Changing the fan speed from low to high to automatic makes no audible or air flow difference.

This a/c is definitely not capable of cooling the motorhome in temperatures beyond the mid 70's.

Our authorized Newmar dealer says it is working as expected.

BTW, we've had two other motorhomes with single a/c units and both were very effective in keeping the unit cool, even in high (80's and 90's) temperatures.
The only thing I might suggest is that the A/C unit was installed incorrectly. We had a '97 MA that we took to the factory to have the A/C unit replaced (this coach was 34' and also only had one air.). The unit was getting some age on it and we didn't want to have a failure in the middle of summer. Well, the new unit didn't cool nearly as well as the 12 year old unit we had replaced, took it back to the factory and they said it was operating "normally". It too felt like it had really reduced air flow. Long story short, after sweating one particularly hot weekend, we took it to our local RV servicer. After some trouble shooting, they figured out that the unit had been set over the ductwork in the roof with about 90% blockage. The tech retrofitted the opening to match--after that the unit cooled like a charm. You may have a similar situation.
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Old 09-23-2015, 09:57 AM   #6
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We have a single unit in our coach, and it works fine. Most of this summer
was spent at my home in Key Largo, and it sure gets hot there. The only
problem I have is that the returns are to close to the supplies. I think they
should have spread them out.
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