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Old 05-24-2015, 10:42 AM   #1
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Roof A/C Return Air Filters

For those of you including us with the ducted roof A/C system. Don't forget to check and clean the return air filters behind the return air vents in the ceiling.
Grant & Pat
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Old 06-01-2015, 05:03 PM   #2
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What are you talking about? Those foam filters that attach to the vent?
2012 Itasca Meridian 42E, Roadmaster Tow System, Unified Brakes on Toad
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Old 06-01-2015, 05:31 PM   #3
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Yes Bruce,

You should clean them every six months. I think there are nine of them. Here is a photo of the before and after:

>> Dennis

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Old 06-01-2015, 05:34 PM   #4
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This is news to me. I didn't know the "return" air had filters unless you're speaking of the foam pads, of which there are two, one in each A/C unit.
Bob Retired Army Traveling alone now.
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Old 06-01-2015, 05:38 PM   #5
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My old Kountry Star had 6 of then in the returns. They were a pain. It was a 93 and I have had to fix the duct connectors.
We traded for the Horizon, which has only one return, its under the bed and uses basically a normal house AC filter you just replace when it needs it.
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Old 06-01-2015, 05:50 PM   #6
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Originally Posted by BigSkyBob View Post
This is news to me. I didn't know the "return" air had filters unless you're speaking of the foam pads, of which there are two, one in each A/C unit.
Some coaches ; with ducted return air for the A/C system , have 6 >9 returns in the ceiling each with it's own foam filter.
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Old 06-01-2015, 06:53 PM   #7
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I check mine with a flashlight periodically and clean them in the sink. I was told also to insure the return air vents point towards the closest outside wall.

I don't think there are any filters on the roof unit itself, but it is on my list now to ask next month at my factory service appointment.

I saw some newer coaches at the Southwest Regional Rally in April that only had ducted outflow outlets. The return air vent was under the roof air unit.
Dan & Sharon & Kasey (Our Yorkie Puppy (12 Yrs Old) On the Road (2012 Journey 36M, 2006 Jeep Liberty)
USN-Ret ('65-'93) Fulltimers, Class of 2012
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