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Old 06-18-2016, 11:15 AM   #1
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13500 or 15000 A/C unit??

I have a 1995 Winnebago Brave .Its 28' The ac is pulling almost40 amps after it is running and starts to cycle after it cools down the rv so i think i need a new one. My question is 13500 or 15000? I will be running it off the generator alot and dont want to max it out. The gen is an onan 4000. It is original,to the Winnebago as well but runs sweet!
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Old 06-18-2016, 11:33 AM   #2
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Quote:
Originally Posted by demon1018 View Post
I have a 1995 Winnebago Brave .Its 28' The ac is pulling almost40 amps after it is running and starts to cycle after it cools down the rv so i think i need a new one. My question is 13500 or 15000? I will be running it off the generator alot and dont want to max it out. The gen is an onan 4000. It is original,to the Winnebago as well but runs sweet!
demon1018
Most RV roof top A/C units have a label inside above the ceiling assembly with the model number of the A/C, (and sometimes the BTU output).
If you can find that model number Google it.
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Old 06-18-2016, 03:39 PM   #3
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Before going to the expense of replacing the AC, go up on the roof, remove the shroud and clean the condenser coils. The fan blows out across the coils, so the inside (where you can't see) picks up a lot of dirt over the years. That makes the compressor work too hard so it pulls a lot of amps. Rinse the dirt away with a gentle flow of water from a garden hose. Do not use high pressure as it may bend the fins. Don't get the motor or any of the electrical components wet.

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Old 06-18-2016, 03:59 PM   #4
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Before going to the expense of replacing the AC, go up on the roof, remove the shroud and clean the condenser coils. The fan blows out across the coils, so the inside (where you can't see) picks up a lot of dirt over the years. That makes the compressor work too hard so it pulls a lot of amps. Rinse the dirt away with a gentle flow of water from a garden hose. Do not use high pressure as it may bend the fins. Don't get the motor or any of the electrical components wet.

Attachment 130565
will do!
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Old 10-27-2021, 12:40 PM   #5
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40 AMPS??
A/C Unit breaker should be tripping....and should be 20A CB

1995 Vinatge.....roof opening will accommodate 13.5K or a 15K
Amp draw would be 11A to 15A
Would need not only a new A/C Unit (roof assembly) but also new control module, t-stat and ceiling cover/grill
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Old 10-27-2021, 01:01 PM   #6
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I opted for the larger 14,800 btu unit when we ordered our 28 foot Itasca in 2002. I'm glad I did as it runs almost nonstop when outside temperatures are in the upper 90s. Ours is a 30 amp rig.

As others have said, a dirty condenser coil can sure cause the unit to work harder which brings the amps up. I'd check on that first before buying anything. Personally, I feel those older rooftop units are of better quality than what's available today.
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Old 10-27-2021, 06:45 PM   #7
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I would get the the 15K,( and did get 2 of the 15k), if its more than you need you will never know it. If a 13500 is less than you need you will know it real quickly especially in warmer climates.
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Old 10-28-2021, 01:19 AM   #8
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40 amps is way too high.

What is the power coming into your RV? If you have low input power it will cause the air conditioner to draw more current.

I shut my air conditioners off when the power drops to 106 volts.
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Old 10-28-2021, 06:21 AM   #9
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You guys realize this a a 5 yr old thread?
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Old 10-28-2021, 12:42 PM   #10
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You guys realize this a a 5 yr old thread?
Not until just now...........LOL

Not sure how I responded to a 5 yr old thread as I don't do archive searches????
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Old 10-28-2021, 02:23 PM   #11
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You guys realize this a a 5 yr old thread?
Hey! I never said I was the sharpest knife in the drawer.
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Old 10-28-2021, 07:08 PM   #12
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I did not! I hate when people drag out old threads.
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Old 10-28-2021, 08:55 PM   #13
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To OB's defense, there was a response from a 1st time poster that dug this thread back up, then OB responded. But now the 1st time posters reply has disappeared, way past the time alloted to delete your reply. Must have been some intervention from the higher ups.
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Old 10-28-2021, 08:57 PM   #14
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13500 or 15000 A/C unit??

It was a spammer post. They like to resurrect old threads.

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