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Old 04-14-2016, 01:51 PM   #1
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AC/HeatPump Odor!

We are experiencing a musty smell when using the heat pump/ac's!
Using a mix of bleach and water or vinegar and water be something that would work? Was wondering what others have used? Have seen this discussed before. Have tried Fa Breeze and a disinfectant sprayed in the returns. That works for a while but not the cure. Is there a down side with using either of these?
Thank you for any advice in advance. See sig.

John and Susan. New 2018 Chevrolet 2500 2 WHD . 6.6 Duramax 3.73 rearend. .4 door ,Short, Bed W/Topper. 2017 Grand Design 297 RSTS. Our rescue dog Annie. Still ,Full timing since 07-01-2011. No sticks and bricks.
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Old 04-16-2016, 02:46 AM   #2
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Your cleaning ideas are good, but it sounds like you may have a drain stoppage issue that would cause the problem to return again.

Try to find your evaporator drain tray and drain exit point, clean it out and see if that helps.


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Old 04-16-2016, 06:22 AM   #3
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To check if the drains are running free, run the A/C, and watch at the left, rear, bottom corner of the coach for water dripping, this is where the AC drains terminate. With ours we have not noticed any musty smells. Have you been removing the ceiling vents covers and washing the filter material there?
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Old 04-16-2016, 11:09 AM   #4
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Go on line and look for cleaners design to clean the coil of the dirty sock smell usually it's two parts one as a cleaner and one as sealer Hope this helps
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odor, heat

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